TWI584641B - Device and method for providing image and non-transitory computer-readable recording medium - Google Patents

Description

Device and method for providing image and non-transitory computer readable recording medium body [Cross-reference to related applications]

The priority of the Korean Patent Application No. 10-2012-0077919, filed on Jan. 17, 2012, and the Korean Patent Application No. 10-2013-0081194, filed on Jul. 10, 2013, The entire disclosure of the application is hereby incorporated by reference.

The illustrative embodiments are directed to systems and methods for providing images to another device that includes objects corresponding to portions of images captured by the device.

Currently, technologies for transmitting and receiving images between devices having multimedia functions have been actively used. In particular, as provided in the mobile communication infrastructure, as well as typically used devices such as smart phones, mobile handsets, and personal digital assistants, these devices provide a variety of services in addition to voice calling capabilities.

In addition, video calls performed using these devices are allowed in two different locations. Users make face-to-face video calls even if they are far away from each other, and therefore video calls are increasing rapidly.

Generally, the device at the transmitting end obtains the video image of the user of the video call, encodes the acquired image according to a predetermined video encoding format, and transmits the encoded video image as the encoded video data to the opposite device.

Further, the device at the receiving end receives the encoded video material via the mobile communication network, and decodes and displays the display on the device embedded in the receiving end, for example, a liquid crystal display. Therefore, the user at the receiving end can immediately view the image captured by the transmitting device to make a telephone call.

However, the display device included in the device has various resolutions, and if the stream resolution of the data transmitted between the devices is different according to the communication method, it is necessary to efficiently use the transmission device to provide the bedding. The technique of taking the portion of the video image to the device at the receiving end. In addition, when a video call is made, a technique of efficiently selecting and expanding a portion of the video image captured by the device on the transmitting side is required, and this portion is provided to the user.

The illustrative embodiments are directed to providing an imaging system and method whereby a device can track an object contained in a captured image and transmit a portion of the image containing the tracking object to another device.

According to an aspect of the exemplary embodiment, an image providing method is provided, including: transmitting a first video image of a first resolution converted from an original video image of an original resolution to an external device; and receiving, regarding the first resolution, from the external device The area information of the region of interest of the first video image, the first video image of the first resolution is displayed on the screen of the external device; and the region of the region of interest corresponding to the original video image of the original resolution is determined based on the region information , wherein the original video image whose area is smaller than the original resolution is determined; the original video image portion of the original resolution is determined Converting the second video image into a first resolution, the portion corresponding to the decision area; and transmitting the second video image to the external device.

The region of interest may include an object displayed in the first video image and generate regional information through an external device.

When the screen of the external device is touched, the region of interest is selected to include an object corresponding to the touch point of the screen.

When the screen of the external device is touched, the region of interest including the previously set range around the touch point of the screen can be selected.

When the area information is received, when the screen of the external device is touched, the coordinate information of the touch point of the screen can be received from the external device.

When the screen of the external device is touched, the user interface for selecting the region of interest can be displayed on the screen of the external device.

The first video image and the second video image may be external video devices as video images of the video call, and when the first video image is transmitted to the external device, the first video image is transmitted to the external image based on the captured video image. The resolution of the captured video image may be greater than the streaming resolution of the video call.

The range of the region of interest may be determined according to the type of communication method the external device uses to communicate.

The first resolution may be determined according to the type of communication method that the external device uses to communicate.

The image providing method may further include modifying the first resolution according to a modification of the communication method used by the external device to communicate.

The image providing method further includes modification of a communication method according to an external device for communication. Modify the determined area.

When transmitting the first video image to the external device, the first video image and the second video image may be transmitted to the external device based on the captured video image, wherein the method further includes: when the object included in the region of interest is If the captured video image disappears, the decision area is modified.

The image providing method may further include: when the object disappearing from the captured video image reappears in the captured video image, only the second video image including the portion of the reappearing object is provided to the external device.

A notification message notifying that the second video image is transmitted can be inserted into the second video image.

The notification message is inserted into the header of the packet corresponding to the previously set frame of the second video image.

The packet may be an instant delivery protocol packet, and the value of the instant delivery protocol identification column of the instant delivery protocol packet may be one.

The packet may be an instant delivery protocol packet, and the notification message may be inserted into the header extension field of the instant delivery protocol packet.

The notification message may include area information indicating the portion of the first video image corresponding to the second video image.

The region of interest may be a specific region based on a user input on a screen of an external device displaying the first video image.

According to an aspect of an exemplary embodiment, an image receiving method is provided, comprising: receiving a first video image from an external device; providing area information to an external device, the area information about the object included in the received first video image; and The external device receives the second video image, and the second video image includes only a portion of the first video image, wherein the portion includes the object, wherein The resolution of the second video image is greater than the resolution of the portion of the first video image, and the portion of the first video image containing the object is determined by the external device based on the provided region information.

The image receiving method may further include: selecting a region of interest based on user input, the region of interest having an object related to the received first video image; and generating region information about the selected region of interest.

When the region of interest is selected, when the screen of the device displaying the first video image is touched, the region of interest may be selected to include the object included in the received first video image, wherein the object includes the touch point of the screen .

When the region of interest is selected, when the screen of the displayed device of the first video image is touched, the area of the previously set range around the touched point of the screen can be selected.

When the area information is provided, when the screen of the device displaying the first video image is touched, the coordinate information of the touch point of the screen can be provided to the external device.

The image receiving method may further include: when the screen of the device displaying the first video image is touched, displaying a user interface for selecting the region of interest.

The first video image and the second video image may be external video devices as video images of the video call, and the first video image and the second video image may be provided through the external device based on the video image captured by the external device and captured. The resolution of the video image can be greater than the stream resolution of the video call.

The range of the region of interest may be determined by the type of device used by the external device to communicate.

The resolution of at least one of the first video image and the second video image may be determined according to an external device of a type of communication method used by the external device to communicate.

The resolution of at least one of the first video image and the second video image may be modified according to an external device of a type of communication method used by the external device to communicate.

This part can be modified by an external device according to the modification of the communication method communicated with the external device.

The first video image and the second video image may be provided by an external device based on the video image captured by the external device, and when the object presented in the captured image disappears from the captured video image, the first video image portion The image receiving method may further include: receiving the second video image from the external device, and the second video image only includes the modified portion.

The image receiving method may further include: when the image captured by the captured video image disappears from the captured video image, the second video image received from the external device, and the second video image only includes a part containing the reappearing object.

According to another exemplary embodiment, a device is provided, the device comprising: a memory setting to store at least one program; the processor being configured to provide the captured video image to an external device by executing at least one program, wherein At least one program includes a command for transmitting the first video image to the external device; receiving, from the external device, area information corresponding to the object, the object is included in the first video image; and the second video image is provided based on the area information, and the second video image is only The portion of the first video image including the object, and the resolution of the second video image is greater than the resolution of the portion of the first video image.

The area information may be information about the area of interest selected by the external device and generated by an external device.

When the screen of the external device displaying the first video image is touched, the region of interest, which contains the touch point of the screen, can be selected.

When the screen of the external device displaying the first video image is touched, the previously set range of the region of interest around the touch point of the screen can be selected.

When the area information is received, when the screen of the external device displaying the first video image is touched, the coordinate information of the touch point of the external device can be received from the external device.

When the screen of the external device displaying the first video image is touched, the user interface for selecting the region of interest can be displayed on the screen of the external device.

The first video image and the second video image may be external video devices as video images of the video call, and when the first video image is transmitted to the external device, the video image may be transmitted to the external device based on the captured video image, and The resolution of the captured video image may be greater than the stream resolution of the video call.

The range of the region of interest may be determined according to the type of communication method used to communicate with the external device.

The resolution of at least one of the first video image and the second video image may be determined according to the type of communication method used to communicate with the external device.

The apparatus can further include a command to perform a modification of the resolution of at least one of the first video image and the second video image in accordance with a modification of the communication method used to communicate with the external device.

The device may further include a command to: modify the portion according to a modification of the communication method used to communicate with the external device; and provide the modified portion of the second video image to the external device.

When transmitting the first video image to the external device, the first video image and the second video image may be transmitted to the external device based on the captured video image, wherein the device further includes a command to perform: when the object is captured The video image disappears, this section is modified, and the modified part is provided. Dividing the second video image to an external device.

The device may further include a command to perform: when the object disappearing from the captured video image reappears in the captured video image, only the second video image containing the recurring portion of the object is provided to the external device.

According to another aspect of the present invention, a device is provided, the device comprising: a memory setting to store at least one program; and a processor configured to provide the captured video image to an external device by executing at least one program, at least one of The program includes a command to receive a first video image from an external device, provide area information about the object included in the received first video image to the external device; and receive a second video image from the external device, the second video The image includes only the first video image portion, wherein the first video image portion includes the object, wherein the resolution of the second video image is greater than the resolution of the portion of the first video image, and is determined based on the provided region information. It contains the portion of the first video image of the object.

According to another aspect of the present invention, an image providing method is provided, the method comprising: transmitting a first video image frame having a plurality of first frames to an external device; receiving regional information from the external device, and the regional information is included Corresponding to the object of the first video image; selecting, according to the regional information, the first frame block containing the object in the plurality of first frames; and transmitting the second video image to the external device, the second video image includes a plurality of only A second frame containing the portion of the selected first frame.

According to another exemplary embodiment, an image providing method is provided, the method comprising: transmitting a first video image having a plurality of first frames to an external device; receiving regional information from the external device, and the regional information is included in The object of the first video image is related; the part including the object is selected from the plurality of first frames based on the area information; and the second video image is transmitted To the external device, the second video image includes a plurality of second frames containing only the selected portion.

According to another aspect of the present invention, a method for providing an image is provided, the method comprising: transmitting a first image of a first resolution to an external device, the first resolution corresponding to an execution screen of the application; and receiving the display from the external device The area information of the region of interest of the first image on the screen of the external device; determining the portion of the first image corresponding to the region of interest based on the region information, wherein the portion is smaller than the first image; based on the determined portion Converting the first image to the second image; and transmitting the second image to the external device at the first resolution.

According to another aspect of the present invention, an image providing method is provided, the method comprising: transmitting a first video image to an external device; receiving regional information about the first video image region from the external device; generating the second video image based on the region information And transmitting the second video image to an external device.

The resolution of the second video image may be greater than the resolution of the region of the first video image.

The second video image may include an object that is displayed in an area of the first video image.

The second video image may include video of a previously set range around the area of the first video image.

According to another exemplary embodiment, an image receiving method using a device is provided, the method comprising: receiving a first video image from an external device; providing area information about the first video image area to the external device; and from the external device Receiving a second video image, the second video image only includes a portion of the first video image corresponding to the area information.

The resolution of the second video image may be greater than the resolution of the region of the first video image.

The portion of the first video image may be a previous setting around the area of the first video image The area of the range.

The area information may include coordinate information of the area of the first video image.

The method can further include displaying a user interface for selecting an area of the first video image.

The above, other features, and advantages will be more apparent from the detailed description of exemplary embodiments.

22‧‧‧ Objects contained in the first video image

80‧‧‧ Touch points

82‧‧‧ face

84‧‧‧ area

10‧‧‧Guideline

12‧‧‧Features

14‧‧‧Predetermined area

16‧‧‧Parts of the first video image

90‧‧‧ Instant Transfer Agreement Logo

40‧‧‧ mouth part

42‧‧‧First video image

44‧‧‧Expanded images

100‧‧‧ first device

200‧‧‧second device

S300‧‧‧ action

S310‧‧‧ action

S320‧‧‧ action

S330‧‧‧ action

S340‧‧‧ action

S350‧‧‧ action

S360‧‧‧ action

S370‧‧‧ action

S322‧‧‧ action

S324‧‧‧ action

S326‧‧‧ action

S500‧‧‧ action

S510‧‧‧ action

S520‧‧‧ action

S600‧‧‧ action

S610‧‧‧ action

S620‧‧‧ action

S700‧‧‧ action

S710‧‧‧ action

S720‧‧‧ action

S730‧‧‧ action

S740‧‧‧ action

S750‧‧‧ action

S760‧‧‧ action

S770‧‧‧ action

S780‧‧‧ action

110‧‧‧Image acquisition component

120‧‧‧Image providing components

130‧‧‧object identification component

140‧‧‧Object tracking component

150‧‧‧Network inspection component

160‧‧‧Database

170‧‧‧Transceiver components

180‧‧‧Control elements

190‧‧‧ Frame buffer

210‧‧‧Image receiving components

220‧‧‧User input components

230‧‧‧Network inspection component

240‧‧‧Regional data generating components

250‧‧‧Regional data providing components

260‧‧‧ display components

270‧‧‧Database

280‧‧‧Transceiver components

290‧‧‧Control elements

1001‧‧‧Mobile communication components

1002‧‧‧ communication components

1003‧‧‧Broadcast receiving components

1004‧‧‧ camera components

1005‧‧‧Sensor components

1006‧‧‧Global Positioning System Receiver

1010‧‧‧Input/output components

1011‧‧‧ button

1012‧‧‧Microphone

1013‧‧‧ Speaker

1014‧‧‧Vibration motor

1015‧‧‧Connector

1016‧‧‧ keyboard

1017‧‧‧Touch Window Controller

1018‧‧‧ touch window

1019‧‧‧Power supply components

1020‧‧‧ Frame buffer

1050‧‧‧Control elements (processors)

1060‧‧‧ memory

1061‧‧‧Mobile communication device module

1062‧‧‧Wireless communication system module

1063‧‧‧Blue Bud Module

1064‧‧‧Digital Interactive Multimedia Broadcasting Module

1065‧‧‧ camera module

1066‧‧‧Sense Module

1067‧‧‧Global Positioning System Module

1068‧‧‧Video Image Replay Module

1069‧‧‧Audio Replay Module

1070‧‧‧Power Module

1071‧‧‧Touch Window Module

1072‧‧‧User interface module

1073‧‧‧Application Module

12‧‧‧ function menu

92‧‧‧ Header unfolding (optional)

S2100‧‧‧ action

S2200‧‧‧ action

S2300‧‧‧ action

S2400‧‧‧ action

S2205‧‧‧ action

S2210‧‧‧ action

S2220‧‧‧ action

S2230‧‧‧ action

S2240‧‧‧ action

S2250‧‧‧ action

S2260‧‧‧ action

S2270‧‧‧ action

S2280‧‧‧ action

S2290‧‧‧ action

S2305‧‧‧ action

S2310‧‧‧ action

S2320‧‧‧ action

S2330‧‧‧ action

S2340‧‧‧ action

FIG. 1 is a schematic diagram of an image providing system, according to an exemplary embodiment.

2A and 2B illustrate that an image containing an object is displayed on a second device corresponding to a portion of the image captured by the first device, in accordance with an illustrative embodiment.

3 is a flow diagram illustrating a method of providing a video image to a second device, the video image containing an object corresponding to a portion of the video image captured by the first device, in accordance with an illustrative embodiment.

4 is a flow illustrating a method of generating region information about a region of interest using a second device, in accordance with an illustrative embodiment.

FIG. 5 is a flowchart illustrating modifying a selected region of interest with a first device and providing a video image for a modified region when a communication method between the first device and the second device is modified, according to an exemplary embodiment The method to the second device.

FIG. 6 is a flowchart illustrating a method of providing a video image having a modified image quality to a second device using a first device when a communication method between the first device and the second device is modified, according to an exemplary embodiment.

7 is a flow diagram illustrating a method of providing a video image comprising an object to a second device corresponding to a portion of the video image captured by the first device, in accordance with another exemplary embodiment.

8A and FIG. 8B are diagrams illustrating an example of determining, by using a second device, a portion of the first video image as a region of interest, such that the determination region includes a touch point touched by the user, according to an exemplary embodiment.

FIG. 9A and FIG. 9B are diagrams illustrating an example of determining a portion of a previously set range from a user touch point as a region of interest using a second device, according to an exemplary embodiment.

FIG. 10A and FIG. 10B are diagrams illustrating an example of determining a portion of a first video image as a region of interest by using a second device, via a user interface for determining a portion of the first video image, in accordance with an exemplary embodiment. .

11A and 11B are diagrams illustrating an example in which a communication method between a first device and a second device is modified, and a modified resolution from the first device 100 is received by the second device, according to an exemplary embodiment. Video image.

12A and 12B illustrate an example of receiving a modified image quality video from the first device 100 with a second device when the communication method between the first device and the second device is modified, in accordance with an exemplary embodiment. image.

13A and 13B illustrate an example of receiving a video image from a modified portion of the first device 100 with a second device when the communication method of the first device and the second device is modified, in accordance with an illustrative embodiment.

FIG. 14 is a block diagram illustrating a first device in accordance with an exemplary embodiment.

Figure 15 is a block diagram illustrating a second device in accordance with an exemplary embodiment.

Figure 16 is a block diagram illustrating an apparatus in accordance with another exemplary embodiment.

17A-17C illustrate an example of an embodiment of the first video image being displayed on a screen of a second device, in accordance with an exemplary embodiment.

18A through 18C illustrate an example of expanding a portion of a video image, the video image being displayed on the screen of the second device in a stepwise manner, in accordance with an exemplary embodiment.

19A through 19C illustrate an example of displaying a preview image including an expanded portion of a first video image on a second device, and displaying a second image from the first device, in accordance with an exemplary embodiment. Two video images.

20 is an illustration of an instant delivery protocol packet header, in accordance with an illustrative embodiment.

21 is a flow diagram of a method of generating a fourth video image using a first device, in accordance with an exemplary embodiment.

FIG. 22 is a flowchart illustrating a method of receiving a second video image by a second device while the second device is performing a video call with the first device, where the second video image is an unfolded image of the first video image, according to an exemplary embodiment. section.

FIG. 23 is a flowchart illustrating a method of deploying and displaying a portion of a first video image with a second device when the second device performs a video call with the first device, according to an exemplary embodiment.

24A through 24C illustrate that the expanded portion of the first video image is displayed on the screen of the second device along with the first video image, in accordance with an exemplary embodiment.

The drawings used to illustrate the exemplary embodiments are referred to for the purpose of illustration. The following exemplary embodiments will be described in detail with reference to the accompanying drawings, in which like reference numerals refer to like elements, in the present specification, when the component is "connected" or "connected" to In the case of another component element, this component element is contacted or connected to another component element, not only directly but also electronically, through which at least one other component element is inserted. Also, when a part of the component elements can be "included", the part is not to be construed as excluding the other component elements unless otherwise specified, but can be interpreted as including more other component elements.

When the elements of the preceding list state, for example, the description of "at least one of", the elements that are all listed are modified and the particular elements in the elements are not modified.

FIG. 1 is a schematic diagram of an image providing system, according to an exemplary embodiment.

Referring to FIG. 1, the first device 100 and the second device 200 can perform video calls with each other, and the first device 100 can provide video images captured by the first device 100 to the second device 200. Moreover, the second device 200 can provide the video image captured by the second device 200 to the first device 100.

Hereinafter, according to the present exemplary embodiment, an embodiment in which the first device 100 provides a video image to the second device 200 in the image providing system will be described in a convenient description. Moreover, the video image captured by the first device 100 is described as providing the content to the second device 200 by the first device 100, but the content is not limited thereto, and the content of the first device 100 can be provided to the second device 200. Examples include video images, camera images, captured images, and application execution images.

The first device 100 can provide the first video image to the second device 200 based on the video image captured by the first device 100, and receive the regional information from the second device 200, and the regional information about the object included in the first video image. . And, the first device 100 can be based on the received area The information tracking is included in the predetermined object of the first video image, and the second video image is provided to the second device 200. The second video image only includes the portion of the first video image that includes the tracking object.

When the resolution of the video image captured by the first device 100 is greater than the streaming resolution between the first device 100 and the second device 200, the first device 100 may provide The second video image of the portion of the video image is captured to the second device 200.

The first device 100 and the second device 200 are devices capable of transmitting video images, images or the like to another device, and examples of the first device 100 and the second device 200 include a smart phone, a mobile phone, and a personal digital device. Assistants, laptops, media players, global positioning systems, other mobile computing devices, and other non-mobile computing devices. However, the first device 100 and the second device 200 are not limited thereto.

At least three devices can simultaneously perform video calls with each other. For example, the first device 100, the second device 200, and the third device (not shown) can perform a video call together. In this case, the first device 100 can provide the first video image to the second device 200 and the third device (not shown). Moreover, when the second device 200 selects a portion of the first video image, the first device 100 can provide a video image about the selected portion to the second device 200 and a third device (not shown). If the second device 200 and the third device (not shown) respectively select a portion of the first video image, the first device 100 may provide a video image for the portion selected by the second device 200 to the second device 200, and provide another A third device (not shown) is provided for the portion of the video image selected by the third device (not shown).

The first device 100 can provide a third video image to the second device 200, where the third video image corresponds to an execution screen of the application executed by the first device 100. In this case, the second The device 200 can select a portion of the received third video image and a fourth video image received from the first device 100 for the selected portion.

2A and 2B illustrate, in accordance with an illustrative embodiment, an image showing an object being displayed on a second device corresponding to a portion of the image captured using the first device. In detail, FIG. 2A illustrates a first video image in accordance with an illustrative embodiment, and FIG. 2B illustrates a second video image in accordance with an illustrative embodiment.

The first device 100 can provide the first video image to the second device 200 based on the currently captured video image, and can inspect the object 22 included in the first video image. Moreover, the first device 100 can provide the second video image to the second device 200, and the second video image only includes the portion of the first video image that is inspected.

The first device 100 can check the object 22 included in the predetermined portion 20 of the captured video image, but is not limited thereto. The first device 100 can also check the object 22 in the first video image provided to the second device 200.

3 is a flow diagram illustrating a method of providing a video image to a second device 200 that includes an object corresponding to a portion of a video image captured using the first device 100, in accordance with an illustrative embodiment.

In action S300, the first device 100 provides the first video image to the second device 200. The first device 100 can provide the first video image to the second device based on the captured video image. The first device 100 can provide the captured video image as the first video image without any additional processing to the second device 200. Moreover, the first device 100 can process the captured video image and provide the processed video image as the first video image to the second device 200. In this case, the first device 100 can modify the resolution or format of the captured video image. For example, when If the resolution of the captured video image is greater than the stream resolution, the data stream transmitted between the first device 100 and the second device 200 is allowed to be uninterrupted, and the first device 100 modifies the resolution of the captured video image. , making it the same as the stream resolution, and providing the first video image with the modified resolution to the second device 200. Moreover, the first video image can have a plurality of first frames.

The first device 100 can transmit the first video image having the original resolution to the second device 200 at the first resolution. The first device 100 can modify the original resolution of the first video image to a first resolution, and the first device 100 can transmit the first video image with the first resolution to the second device 200. In this case, the first device 100 may first obtain and store the resolution information about the display included in the second device 200, and determine the first resolution based on the resolution of the display included in the second device 200.

The first device 100 can provide a third video image corresponding to the execution screen of the application executed by the first device 100 to the second device 200. The first device 100 can provide the third video image to the second device 200 at a third resolution.

In Act S310, the second device 200 displays the received first video image. The second device 200 can display the received first video image on the screen of the second device 200. The second device 200 can display the first video image of the first resolution on the screen of the second device 200.

Meanwhile, when the second device 200 has received the third video image, the third video image corresponds to the execution window of the application executed by the first device 100, and the second device 200 can display the received third video image. The second device 200 can display a third video image of the third resolution.

In Act S320, the second device 200 generates area information about the object contained in the first video image. The second device 200 can select the first video image based on the user input. Part of it acts as a region of interest and can generate regional information about the selected region of interest. And, the second device 200 can select a predetermined object included in the first video image, and generate area information about the selected object.

The second device 200 can receive a touch input of the user for the first video image, and select a region of interest based on the location of the touch input. In detail, when the user touches a predetermined point of the first video image, the second device 200 recognizes the object including the touched position, and selects an area including the recognized object. For example, when the face is touched at the touch position of the first video image, the second device 200 can recognize the face, which is the object included in the touch position. And, the second device 200 can select an area including the recognized face as the region of interest.

When the user touches a predetermined point on the first video image, the second device 200 may select an area of the previously set range as the region of interest from the touch point. For example, the second device 200 can select a predetermined rectangular region around the touch point as the region of interest.

The second device 200 can display a user interface on the screen, and let the user select a portion of the first video image as the region of interest. For example, the second device 200 can display a rectangular shape on a portion of the first video image and provide a user interface so that the user can modify the size of the rectangle by touching and dragging the long rectangular frame.

Although the second device 200 selects a portion of the first video image as the region of interest based on user input, the illustrative embodiments are not limited thereto. The second device 200 can identify the face contained within the first video image without any additional user input, and select a predetermined area containing the face as the region of interest.

The size of the region of interest selected in the first video image may be determined based on the stream resolution of the data transmitted between the first device 100 and the second device 200. In the first video image The upper limit of the surface area of interest may be determined based on the stream resolution of the data transmitted between the first device 100 and the second device 200.

The second device 200 can generate coordinate information of the selected region of interest. The second device 200 can generate a coordinate value from among the coordinates of all of the first video images, the coordinate value indicating the location of the selected region of interest. Moreover, the second device 200 can generate a coordinate value from all of the first video images, the coordinate value indicating the position of the touch input point.

The second device 200 can generate region information about a region of interest of each of the plurality of first frames included in the first video image.

When the third video image corresponding to the execution screen of the application executed by the first device 100 is provided to the second device 200, the second device 200 may select a portion of the third video image and generate regional information about the selected portion.

In action S330, the second device 200 provides the generated region information to the first device 100, and the generated region information is related to the region of interest. The second device 200 can provide a coordinate value of the selected region of interest to the first device 100. Moreover, the second device 200 can provide the coordinate value of the touch input point of the user to the first device 100.

In Act S340, the first device 100 recognizes an object related to the area information. In action S340, the first device 100 may identify the object in the first video image based on the received area information. For example, when the object included in the first video image corresponding to the received area information is a face, the first device 100 can recognize the face from the first video image. And, an object having information about the received area can be identified from each of the plurality of first frames included in the first video image.

The first device 100 can identify the captured video image based on the received area information. object. The received area information is area information about a portion of the first video image, and therefore, the first device 100 can check a portion of the captured video image corresponding to the first video image corresponding to the received area information. section. Moreover, the first device 100 can identify the corresponding object from the captured portion of the captured video image.

The first device 100 can identify the object included in the captured video image by using the object recognized from the first video image. The first device 100 can identify an object similar to the image from the first video image recognized object from the captured video image. Whether the objects are similar or not, they can be decided in many ways. For example, regardless of whether the object is similar or not, the first device 100 can determine at least one of size, color, and form of the object. Alternatively, the first device 100 can compare portions of the various items to each other to determine whether the objects are similar.

If the first device 100 receives the area information of the portion of the third video image of the second device 200, the portion of the third video image corresponds to the execution screen of the application executed on the first device 100, the first device 100 may identify an object from the third video image based on the received area information.

In Act S350, the first device 100 tracks the identified object. The first device 100 can track the identified objects from the first video image. Moreover, the first device 100 can track the identified object from the video image captured by the first device. The video image captured by the first device 100 includes the video image currently being captured by the first device 100. The identified object can move or rotate within the video image, and the first device 100 can track the object within the video image based on the form or color of the object. Tracking the identified object means that, when the object moves, the position of the moving object within the video image is checked, and the area in which the object is included is checked, but the tracking is not limited thereto.

In Act S350, the first device 100 may select a frame containing the identified object from a plurality of first frames of the first video image. Moreover, the first device 100 can identify a portion of the first frame containing the identification object from the first video image.

When the first device 100 receives the area information from the second device 200, the area information corresponds to a portion of the third video image of the execution screen of the application executing on the first device 100, and the first device 100 can track the third device. The object of the video image.

In the action S360, the first device 100 provides the second video image to the second device 200, and the second video image only includes the portion of the identified object. The first device 100 can crop the portion containing the recognized object from the captured image, and provide the cropped portion as the second video image to the second device 200.

In detail, the first device 100 may determine an area based on the received area information, the area corresponding to the region of interest in the screen of the first video image having the original resolution. Moreover, the first device 100 can convert the first video image to the second video image such that the second video image only includes the determined region. Moreover, the first device 100 can provide the second video image at the first resolution to the second device 200. The first video image of the first resolution can be converted from the first video image of the original resolution. For example, when the original resolution of the first video image is 1000×1000, and the first resolution of the second video image is 100×100, the first device 100 may convert the first video image corresponding to the determined region. The portion is to a second video image having a resolution of 100×100, and the second video image is transmitted to the second device 200 at a resolution of 100×100.

The first device 100 can distinguish the portion including the identification object from the plurality of first frames of the first video image, and provide the second video image including the plurality of second frames to the external device, and the second frame Contains only the parts of a plurality of first frames.

When the first device 100 selects a frame containing the recognized object from the plurality of first frames of the first video image, the first device 100 may provide a second image having a plurality of portions including only the selected frame. The second video image of the frame is to the external device. In this case, this part can be a region of interest. And, the first device 100 may crop a portion corresponding to the region of interest according to each selected frame, thus generating a second frame of each selected frame.

In addition, the first device 100 may determine an area size corresponding to the second video image according to a communication method between the first device 100 and the second device 200.

The second video image may include a plurality of second frames, each of which includes only a portion of the frame selected by the action S350, but is not limited thereto. Moreover, the second video image may include a plurality of second frames including only the distinguishable portions in the action S350, but is not limited thereto.

The first device 100 can determine the image quality or resolution of the second video image according to the communication method between the first device 100 and the second device 200. For example, when the resolution of the portion of the frame including the identification object is smaller than the stream resolution of the data transmitted between the first device 100 and the second device 200, the first device 100 may increase the portion including the identification object. Resolution or image quality. In addition, for example, when the resolution of the portion of the frame including the identification object is smaller than the stream resolution of the data transmitted between the first device 100 and the second device 200, the first device 100 may increase the inclusion of the identification object. The resolution or image quality of the part of the frame.

Examples of the communication method between the first device 100 and the second device 200 include, without limitation, third generation (3G) communication, fourth (4G) generation communication, and wireless (Wi-Fi) communication.

When the communication method between the first device 100 and the second device 200 is modified, the first device 100 may modify the size of the region of interest corresponding to the second video image or the second video shadow Image quality like image. When at least one of the first device 100 and the second device 200 performs handover, the communication method between the first device 100 and the second device can be modified.

In addition, when the identification object disappears from capturing the video image, that is, when the identification object is not captured, the first device 100 may modify the area corresponding to the second video image. For example, when the identification object disappears from capturing the video image, the first device 100 can provide all the captured video images to the second device 200. Moreover, in this case, the first device 100 can provide all captured video images to the second device 200 based on additional user input.

In addition, when the disappearing object appears again in the captured image, that is, when the disappeared object is captured again, the video image containing the portion of the object appearing in all areas of the captured image can be provided to the first Two devices 200.

When the first device 100 receives the area information, the area information is related to the portion of the third video image corresponding to the execution screen of the application of the first device 100, the first device 100 may provide the fourth video image to the second device 200, The fourth video image contains only the portion of the identified object. In this case, the first device 100 can provide the fourth video image to the second device 200 at a third resolution.

When the first device 100 receives the area information and the area information is related to the portion of the third video image corresponding to the execution screen of the application executed by the first device 100, the first device 100 cannot recognize or track the third video image. Object. In this case, the first device 100 may crop the portion of the third video image based on the received area information, and convert the cropped portion into a fourth video image, and provide the fourth video image to the second device 200.

In Act S370, the second device 200 displays the received second video image. The user of the second device 200 can check the detailed video image, and the video image is included in the selected area. Object. Moreover, the second device 200 can display a still screen of the received second video image.

At the same time, the second device 200 can display the first video image and the second video image together on the screen of the second device. In this case, the second device 200 can receive not only the second video image but also the first video image in action S360. Moreover, the second device 200 can display the first and second video images on the first video image by overlapping the second video images. The second device 200 may superimpose the second video image on a portion of the first video image that does not display the user of the first device 100. In addition, the second device 200 can adjust the size of the displayed portion of the first video image and the size of the displayed portion of the second video image. However, the exemplary embodiment is not limited thereto, and the second device 200 can display the first and second video images on the screen of the second device without overlapping the first and second video images.

Although the second device 200 receives the second video image from the first device 100 and displays the first and second video images as described above, or the second device 200 can select a portion of the first video image, extracted from the first video. An image of the selected portion of the image is displayed, and the extracted image and the first video image are displayed together on the screen of the second device 200.

4 is a flowchart illustrating a method of generating region information about a region of interest using the second device 200, in accordance with an illustrative embodiment.

In Act S322, the second device 200 receives a user input for selecting a portion of the first video image. The second device 200 can receive a touch input of a user for selecting a portion of the first video image. For example, the second device 200 can receive a user input for touching a predetermined point of the first video image, or an input of a predetermined point used by the user to touch and drag the first video image.

And, the second device 200 can receive via a predetermined user interface displayed on the screen. User's touch input. For example, the second device 200 can display a rectangle on a portion of the first video image and provide a user interface so that the user can touch and drag the rectangular frame to modify the size of the rectangle. Moreover, the second device 200 can receive the user's touch input via the provided user interface.

In Act S324, the second device 200 checks the communication method related to the first device 100. The second device 200 can check the type and bandwidth of the communication method associated with the first device 100. And, the second device 200 can check the stream resolution of the data transmission between the first device 100 and the second device 200. Examples of the communication method between the first device 100 and the second device 200 include, without limitation, 3G communication, 4G communication, and wireless communication.

In Act S326, the second device 200 selects a portion of the first video image as the region of interest based on the received user input and the communication method of the check. The second device 200 can select a portion of the first video image based on the position of the touch input point of the first video image. In detail, when the user touches the touch point of the first video image, the second device 200 recognizes the object including the touch point, and selects a portion of the first video image including the identification object. For example, when the display image of the face is touched in the first video image, the second device 200 can recognize the face, which is the object containing the touched point. And, the second device 200 can select a portion including the recognized face as the region of interest.

In addition, when the user touches a predetermined point on the first video image, the second device 200 can select an area of the previously set range from the touch point as the region of interest. For example, the second device 200 may select a rectangular region having a predetermined size with respect to the touch point as the region of interest.

The second device 200 can modify the selected region of interest according to the user's touch input via the user interface.

The size of the region of interest selected in the first video image can be determined according to the communication method between the first device 100 and the second device 200. For example, the size of the region of interest selected in the first video image may be determined based on at least one of the type and bandwidth of the communication method. Moreover, in another example, the size of the region of interest selected in the first video image may be determined based on the degree of stream resolution of the data transmission between the first device 100 and the second device 200. The upper limit of the size of the region of interest in the first video image can be determined according to the communication method between the first device 100 and the second device 200.

According to the description with reference to FIG. 4 above, although the second device 200 selects a portion of the first video image based on user input, the illustrative embodiments are not limited thereto. The second device 200 can recognize the face in the first video image without additional user input, and select a predetermined area including the face as the region of interest. Also, in this case, the size of the selected region of interest may be determined according to the communication method between the first device 100 and the second device 200.

FIG. 5 is a flowchart illustrating modification of a region of interest selected by the first device 100 when a communication method between the first device 100 and the second device 200 is modified, and is directed to being used, according to an exemplary embodiment The modification area provides a method of providing a video image to the second device 200.

In action S500, the first device 100 determines whether the communication method between the first device 100 and the second device 200 is modified or not. In detail, the first device 100 can check whether the type or bandwidth of the communication method is modified or not. And, the second device 200 can check whether the stream resolution of the data transmission between the first device 100 and the second device 200 is modified or not.

Examples of the communication method between the first device 100 and the second device 200 include, without limitation, 3G communication, 4G communication, and wireless communication. Further, when at least one of the first device 100 and the second device 200 performs handover, between the first device 100 and the second device 200 The communication method can be modified.

Based on the result of the decision of action S500, when the communication method is modified, in action S510, the first device 100 modifies the region corresponding to the second video image transmitted to the second device. When the communication method between the first device 100 and the second device 200 is modified, the first device 100 may modify the size of the portion of the first video image corresponding to the second video image.

For example, the communication method between the first device 100 and the second device 200 is modified from 3G communication to wireless communication, and the portion of the first video image to be transmitted from the first device 100 can be selected, and the portion is greater than the corresponding The portion of the first video image of the second video image. When the communication method between the first device 100 and the second device 200 is 3G communication, and the first device 100 has transmitted the face portion of the first video image, then, between the first device 100 and the second device 200 The communication method is modified to wireless communication, and the first device 100 can select a portion of the first video image such that the background portion of the first video image other than the face is more included. Further, for example, when the communication method between the first device 100 and the second device 200 is modified from wireless communication to 4G communication, an area smaller than a portion corresponding to the second video image may be selected.

Also, for example, when the stream resolution of the data transmission between the first device 100 and the second device 200 is modified, the size of the portion corresponding to the second video image can be modified.

The size of the area corresponding to at least one of the type of the communication method and the bandwidth may be set and stored in the first device 100 first. Also, the size of the region of the stream resolution of the material transmitted between the first device 100 and the second device 200 may be first set and stored in the first device 100.

In Act S520, the first device 100 provides the video image of the modified region to the second device 200. For example, when communication between the first device 100 and the second device 200 The method is modified from the 3G communication to the wireless communication, and the first device 100 can provide the video image of the portion of the first video image to the second device 200. The portion of the first video image is larger than the first video image corresponding to the second device. Part of the video image. Moreover, for example, when the stream resolution of the data transmitted between the first device 100 and the second device 200 is reduced, the first device 100 can provide a portion for the video image, which is smaller than the first video. The image corresponds to a portion of the second video image to the second device 200.

6 is a flowchart illustrating that when a communication method between the first device 100 and the second device 200 is modified, the first device 100 is used to provide a video image having a modified image quality to the second device 200, according to an exemplary embodiment. Methods.

In Act S600, the first device 100 determines whether the communication method of the second device 200 is modified. In detail, the first device 100 may check whether the type or bandwidth of the communication method with respect to the second device 200 is modified. And, the second device 200 can check whether the stream resolution of the data transmitted between the first device 100 and the second device 200 is modified.

Based on the result of the action S600, when it is determined in the action S610 that the communication method is modified, the first device 100 modifies the image quality of the second video image transmitted to the second device 200. If the communication method between the first device 100 and the second device 200 is modified, the first device 100 can modify the image quality of the second video image to be high image quality or low image quality.

For example, when the communication method between the first device 100 and the second device 200 is repaired to wireless communication from the third generation communication, the image quality of the second video image can be modified to be higher than the third generation communication. Image quality. In addition, for example, when the communication method between the first device 100 and the second device 200 is modified from the fourth generation communication to the third generation communication, the image quality of the second video image can be modified to be the fourth generation. Low image quality for communication.

As another example, when the stream resolution of the data transmission between the first device 100 and the second device 200 is modified, the image quality of the second video image can be modified.

The image quality corresponding to at least one of the type of communication method and the bandwidth may be first set and stored in the first device 100. Further, the image quality corresponding to the stream resolution of the data transmission between the first device 100 and the second device 200 may be first set and stored in the first device 100.

In Act S620, the first device 100 provides the video image with the modified image quality to the second device 200. The first device 100 can provide a video image having a modified image quality to the second device 200.

FIG. 7 is a flow diagram illustrating a method of providing a video image of an object corresponding to a portion of the captured video image to the second device 200 using the first device 100, in accordance with another exemplary embodiment. Referring to FIG. 7, the first device 100 can receive coordinate information of a predetermined point of the first video image of the second device 200, and select a portion of the first video image as the region of interest by using the received coordinate information.

In Act S700, the first device 100 provides the first video image to the second device 200. The first device 100 can provide the first video image to the second device 200 based on the captured video image. The first device 100 can provide the captured video image as the unprocessed first video image to the second device 200. Moreover, the first device 100 can process the captured video image and provide the processed video image as the first video image to the second device 200. In this case, the first device 100 may modify the resolution of the captured video image or convert the captured video image into a predetermined format. For example, if the resolution of the captured video image is greater than the stream resolution of the data between the first device 100 and the second device 200, the first device 100 may modify the captured video image. The resolution is the same as the resolution of the data, and the modified video image can be provided as the first video image to the second device 200.

In Act S700, the first device 100 may transmit the first video image having the original resolution to the external device at the first resolution. The first device 100 can convert the first video image with the original resolution to the first video image of the first resolution, and transmit the first video image with the first resolution to the second device 200. In this case, the first device 100 may first acquire information about the resolution of the display included in the second device 200 and store it, and determine the first resolution based on the resolution of the display included in the second device 200. .

In Act S710, the second device 200 displays the received first video image. The second device 200 can display the received first video image on the screen of the second device 200. For example, the second device 200 can display the first video image of the first resolution on the screen.

In Act S720, the user's touch input is for the first video image displayed on the screen, and the second device 200 receives the user's touch input. The second device 200 can receive a touch input of the user to select a predetermined point of the first video image displayed on the screen. Moreover, the second device 200 can generate coordinate information of the touched point.

In Act S730, the second device 200 provides coordinate information of the touch point to the first device 100.

In Act S740, the first device 100 determines the portion of the first video image provided to the second device 200 as the region of interest based on the received coordinate information. The first device 100 can select a portion based on the coordinates of the touched point. In detail, the first device 100 can recognize an object including a touch point and select an area including the identified object. For example, when the face portion of the first video image is touched, the first device 100 can recognize the face as an object including the touched point. And, the first device 100 can select a portion including the recognized face as the region of interest.

Moreover, the first device 100 can select an area of a first set range around the touch point as the region of interest. For example, the first device 100 may select a rectangular area having a predetermined size around the touch point as the region of interest.

In Act S750, the first device 100 recognizes the object included in the determination portion. For example, when the first device 100 selects a region of the first set range as the region of interest from the touch point, the first device 100 can identify the object including the selected portion from the first video image.

The first device 100 can identify the object from the captured video image based on the determined region of interest. The determined region of interest is part of the first video image, and the first device 100 can therefore check the region of the region of interest of the first video image from the currently captured video image. Moreover, the first device 100 can identify the object included in the matching area from the currently captured video image.

The first device 100 can identify the object included in the captured video image by using the object recognized from the first video image. The first device 100 can identify an object included in the captured video image by using an object recognized from the first video image. The first device 100 can identify an image similar to the object recognized from the first video image based on the coincidence/identification threshold.

In action S760, the first device 100 tracks the identified object. The first device 100 can track the object identified from the first video image. Moreover, the first device 100 can track the identified object from the captured video image.

In Act S770, the first device 100 provides a second video image containing the tracked object to the second device 200. The first device 100 can automatically extract the portion containing the recognized object from the captured video image, and provide the clipped portion as the second video image to the second device. 200.

In detail, the first device 100 may determine, according to the received area information, a portion of the screen of the first video image having the original resolution, the portion corresponding to the region of interest. Moreover, the first device 100 can convert the first video image to the second video image such that only the determination portion is included in the second video image. Moreover, the first device 100 can provide the second video image to the second device 200 at the first resolution. The first video image of the first resolution can be converted from the first video image of the original resolution. For example, when the original resolution of the first video image is 1000×1000, and the first resolution of the second video image is 100×100, the first device 100 can convert the determination part of the first video image to the second. The video image is transmitted, and the second video image is transmitted to the second device 200 at a resolution of 100×100.

The first device 100 can determine the size of the portion corresponding to the second video image according to the communication method between the first device 100 and the second device 200. Moreover, the first device 100 can determine the image quality of the second video image according to the communication method between the first device 100 and the second device 200. Examples of the communication method between the first device 100 and the second device 200 include, without limitation, third generation communication, fourth generation communication, and wireless communication.

When the communication method of the first device 100 and the second device 200 is modified, the first device 100 may modify the size of the area corresponding to the second video image or the image quality of the area corresponding to the second video image. When at least one of the first device 100 and the second device 200 performs hand over, the communication method of the first device 100 and the second device 200 may be modified.

In Act S780, the second device 200 displays the received video image. The user of the second device 200 can check the subtle video image of the object contained in the selected area.

Meanwhile, the second device 200 can display the first view together on the screen of the second device 200. Video and second video. In this case, in operation S770, the second device 200 can receive not only the second video image but also the first video image. Moreover, the second device 200 can use the overlapping second video images on the first video image to display the first and second video images. The second device 200 can overlap the second video image in a portion of the first video image that does not display the user of the first device 100. In addition, the second device 200 can adjust the size of the portion of the first video image and the size of the portion of the second video image. However, the exemplary embodiment is not limited thereto, and the second device 200 may display the first and second video images on the screen of the second device 200 without overlapping the first and second video images.

8A and 8B illustrate an example of determining, by using a second device, a portion of a first video image as a region of interest, the decision region including an object of a touch point touched by a user, according to an exemplary embodiment.

Referring to FIG. 8A and FIG. 8B, when the user touches a predetermined point 80 in the first video image displayed on the screen of the second device 200, the second device 200 can determine the area 84 including the face 82 as the first The portion 82 of the video image includes a touch point 80.

In detail, when the user touches a predetermined point 80 in the first video image displayed on the screen, the second device 200 can recognize the face 82 including the touched point. Also, the second device 200 can select an area 84 that includes the face 82. In this case, the size of the area 84 can be determined based on the communication method between the first device 100 and the second device 200.

For example, when the user touches a predetermined function menu displayed on the screen of the second device 200, a predetermined box is displayed on the window of the second device 200, and the user can move the displayed frame. Or adjust the size of the box to select the area of interest. In this case, the user interface that causes the frames to be moved or the size of the frame to be adjusted can also be displayed on the second device. 200 on the screen.

9A and 9B are diagrams illustrating an example of determining a portion of a previously set range as a region of interest from a user touch point using the second device 200, in accordance with an exemplary embodiment.

Referring to FIG. 9A and FIG. 9B, when the user touches a predetermined point 80 in the first video image displayed on the screen of the second device 200, the rectangular area 92 having a predetermined size around the touch point 80 can be determined as Part of the first video image. In this case, the size of the area 92 can be determined based on the communication method between the first device 100 and the second device 200.

Alternatively, the second device 200 may determine the region of interest based on the user's unpinching input. When the user, for example, uses his or her thumb and forefinger to unfold a predetermined portion of the second video image with a non-pinch input, and stops the touched thumb and forefinger for a predetermined period of time or longer The second device 200 can determine the portion unfolded with the non-pinch input as the region of interest. Moreover, the second device 200 can submit the demand for the second video image to the first device 100, and the demand corresponds to the determined region of interest.

10A and 10B illustrate an example of using a second device 200 to determine a portion of a first video image as a region of interest via a user interface for determining a portion of the first video image, in accordance with an exemplary embodiment.

Referring to Figures 10A and 10B, the second device 200 can display a guide line 10 to select a portion of the first video image on the screen. Moreover, the second device 200 can modify the size of the guide wire 10 based on the touch of the user and the portion of the guide wire. Moreover, the second device 200 can determine the portion of the modified guide line 10 to be the region of interest of the first video image. In this case, the upper limit of the size of the portion included in the guide wire 10 can be determined based on the communication method between the first device 100 and the second device 200.

11A and 11B are diagrams illustrating an example in which the communication method between the first device 100 and the second device 200 is modified, and the modified resolution from the first device 100 is received by the second device 200, according to an exemplary embodiment. Video image. 11A illustrates the modification of the video image displayed on the second device 200 before the communication method is modified, and FIG. 11B illustrates the modification of the video image displayed on the second device 200 after the communication method is modified.

When the communication method used between the first device 100 and the second device 200 is modified, the stream resolution of the data transmission of the first device 100 and the second device 200 may be reduced. In this case, the second device 200 can receive a lower resolution video image from the first device 100, the video image having a video image from the first device 100 received prior to the modification of the communication method. Lower resolution. Moreover, the second device 200 can display the video image received after the communication method is modified, and the video image has a smaller size than the video image received before the communication method is modified.

12A and 12B are diagrams illustrating an example of a modified image quality received from the first device 100 by the second device 200 when the communication method between the first device 100 and the second device 200 is modified, according to an exemplary embodiment. Video image. FIG. 12A illustrates a video image displayed by the second device 200 before the communication method is modified, and FIG. 12B illustrates a video image displayed at the second device 200 after the communication method is modified.

When the communication method between the first device 100 and the second device 200 is modified, the stream resolution of the data transmission between the first device 100 and the second device 200 may be reduced, in which case the second device The 200 can receive a lower image quality video image from the first device 100, the video image having a lower image quality than the video image received from the first device 100 prior to modification of the communication method. And, the second device 200 can be displayed in the communication method The modified video image is received, and the video image has the same size as the video image received before the communication method is modified.

13A and 13B are diagrams illustrating an example of receiving a video image from a modified portion of the first device 100 with the second device 200 when the communication method of the first device 100 and the second device 200 is modified, according to an exemplary embodiment. . FIG. 13A illustrates a video image displayed by the second device 200 before the communication method is modified, and FIG. 13B illustrates the video image displayed by the second device 200 after the communication method is modified.

When the communication method between the first device 100 and the second device 200 is modified, the stream resolution of the data transmission between the first device 100 and the second device 200 may increase. In this case, the second device 200 receives the video image from the first device 100, which has a wider area than the video image received from the first device 100 before the communication method is modified.

FIG. 14 is a block diagram illustrating a first device 100, in accordance with an exemplary embodiment.

As illustrated in FIG. 14, the first device 100 includes an image acquisition component 110 (eg, an image extractor, etc.), an image providing component 120 (eg, an image provider, etc.), and an object recognition component 130 (eg, object recognition). Device...etc.), object tracking component 140 (eg, object tracker...etc.), network check component 150 (eg, network checker...etc.), frame buffer 190, database (database, DB) 160, transceiver component 170 (eg, transceivers, etc.) and control component 180 (eg, controller, processor, etc.).

The image acquisition component 110 acquires an image to be provided to the second device 200. The image capturing component 110 can obtain the video image captured by the camera device or the image sensor included in the first device 100, but is not limited thereto. The image acquisition component 110 can obtain, for example, a picture or a bedding Take the content of the image.

When the third video image corresponding to the execution screen of the application executed in the first device 100 is provided to the second device 200, the image obtaining component 110 can obtain the execution screen of the corresponding application from the frame buffer 190. The third video image. However, the exemplary embodiment is not limited thereto, and the image capturing component 110 may extract an image corresponding to the execution screen of the application from the frame buffer 190, which will be described later and processed through the extracted image. To generate a third video image.

The image providing component 120 provides the acquired image to the second device 200. The image providing component 120 can process the acquired image and provide it to the second device 200, but is not limited thereto. Image providing component 120 can provide the captured image to second device 200 without any additional processing.

The image providing component 120 can provide the first video image and the second video image to the second device 200 based on the video images captured by the first device 100. The image providing component 120 can also provide an unprocessed captured video image to the second device 200 as the first video image. Similarly, the image providing component 120 can process the captured video image and provide the processed video image to the second device 200 as the first video image. In this case, the image providing component 120 can modify the resolution or image quality of the captured video image or convert the format of the captured video image.

The image providing component 120 can transmit the first video image having the original resolution to the second device 200 at the first resolution. The first video image having the first resolution can be converted from the first video image having the original resolution. In this case, the first device 100 can preferentially acquire and store information about the display resolution of the second device 200, and determine the first resolution based on the display resolution of the second device 200.

The image providing component 120 can provide a second video image containing the object tracked by the object tracking component 140 to the second device 200, as will be described later. The second video image may include only portions that track the object. Moreover, when the communication method between the first device 100 and the second device 200 is modified, the image providing component 120 can modify the resolution or image quality of the second video image, and provide the modified video image to the second device 200. . Moreover, when the communication method between the first device 100 and the second device 200 is modified, the image providing component 120 can modify the size of the portion corresponding to the second video image, and provide the modified portion of the video image to the first Two devices 200.

At the same time, the image providing component 120 can provide a third video image to the second device 200, and the third video image corresponds to an execution screen of the application executed by the first device 100. Moreover, when the second device 200 selects a portion of the third video image received from the first device 100 and requests the selected portion of the video image, the first device 100 can provide the fourth video corresponding to the selected portion. The image is to the second device 200. In this case, the fourth video image may be an image obtained by cropping the selected portion of the third video image.

The object recognition component 130 acquires an image recognition object. The object recognition component 130 can receive the region information of the portion of the first video image from the second device 200, and automatically capture the video image or the first video image recognition object.

The object tracking component 140 retrieves the image tracking object. The object tracking component 140 can track the identified object from the first video image or the captured video image.

The network check component 150 checks the communication method between the first device 100 and the second device 200. The network check component 150 can check the type or bandwidth of the communication method between the first device 100 and the second device 200. And, the network check component 150 can check the first device 100. Stream resolution of data transfer with the second device 200.

The frame buffer 190 stores an image corresponding to the execution screen of the application executed on the first device 100.

The database 160 stores a plurality of types of information, which is information required when the first device 100 provides a predetermined portion of the video image to the second device 200.

The transceiver component 170 transmits or receives a plurality of types of information from the second device 200, the information required to provide the first device 100 with a predetermined portion of the image of the first video to the second device 200.

The control component 180 controls the image acquisition component 110, the image providing component 120, the object recognition component 130, the object tracking component 140, the network inspection component 150, the frame buffer 190, the data library 160, and the transceiver component 170, so that the first device 100 can An image of a predetermined area of the video image is provided to the second device 200.

FIG. 15 is a block diagram illustrating a second device 200, in accordance with an exemplary embodiment.

As illustrated in FIG. 15, the second device 200 includes an image receiving component 210 (eg, an image receiver, etc.), a user input component 220 (eg, a user input device, etc.), and a network inspection component 230 (eg, Network checker...etc.), area information generating component 240 (eg, area information generator, etc.), area information providing component 250 (eg, area information generator, etc.), display element 260 (eg, display) ...etc.), database 270, transceiver component 280, and control component 290.

Image receiving component 210 receives an image from first device 100. The image receiving component 210 can receive the first video image and the second video image from the first device 100. And, when the communication method is modified, the image receiving component 210 can receive the modified resolution or the modified image. A quality video image, but is not limited to this illustrative embodiment.

The image receiving component 210 can receive the third video image from the first device 100 when the third video image corresponding to the execution screen of the application executed on the first device 100 is provided.

The user input component 220 receives an input by the user to select a portion of the first video image. For example, the user input component 220 can receive an input of a touch of a predetermined point of the first video image by the user, or an input of a touch and drag of the predetermined point of the first video image by the user. Moreover, the user input component 220 can receive input from a user via a predetermined user interface display displayed on the screen of the second device 200. Meanwhile, when a third video image corresponding to the execution screen of the application executed on the first device 100 is provided, the user input component 200 receives an input by the user to select a portion of the third video image.

The network check component 230 checks the communication method between the first device 100 and the second device 200. The network check component 230 can check the type or bandwidth of the communication method between the first device 100 and the second device 200. And, the network check component 230 can check the stream resolution of the data transfer between the first device 100 and the second device 200.

The area information generating component 240 selects a portion of the first video image based on the user input and the checked communication method. The area information generating component 240 can generate area information about the objects included in the first video image. The area information generating component 240 can select a portion of the first video image based on a portion of the touch input point in the first video image. In detail, when the user touches a predetermined point in the first video image, the area information generating component 240 can recognize the object including the touch point and select an area including the identified object.

Moreover, when the user touches a predetermined point in the first video image, the area information generating component 240 can select a previously ranged area around the touch point as the first video image. Part. Moreover, the area information generating component 240 can modify the selected portion via the user interface according to the user's touch input. Moreover, the size of the portion selected by the first video image may be determined based on a communication method between the first device 100 and the second device 200.

The area information providing component 250 provides the generated area information to the first device 100.

The area information providing component 250 can provide a coordinate value of the selected portion to the first device 100. Moreover, the area information providing component 250 can provide the coordinate value input by the user touch input point to the first device 100.

Display element 260 displays the image received from first device 100 on a screen. Display component 260 can display the video image received from first device 100 on a screen.

The database 270 stores various types of data, so the second device 200 can receive a video image of a portion of the first video image received from the first device 100.

The transceiver component 280 transmits or receives various types of data to and from the first device 100. Therefore, the second device 200 can receive a video image of a portion of the first video image received from the first device 100.

The control element 290 controls the image receiving element 210, the user input element 220, the network check component 230, the area information generating component 240, the area information providing component 250, the display component 260, the data library 270, the transceiver component 280, and the control component 290. The second device 200 can receive a video image of a portion of the first video image received from the first device 100.

Figure 16 is a block diagram illustrating an apparatus in accordance with another exemplary embodiment. According to an exemplary embodiment, the device illustrated in FIG. 16 may be the first device 100 or the second device 200.

A mobile communication unit 1001 (eg, a mobile communicator...etc.) performs a base station or data communication via a mobile network such as 3G or 4G. Call settings. The secondary communication component 1002 performs functions for short-range communication, such as Bluetooth or near field communication (NFC). The broadcast component 1003 (eg, a broadcast receiver, etc.) receives a digital interactive multimedia broadcast (DMB) signal.

Camera component 1004 includes a lens and an optical component for capturing a picture or video image.

Sensing element 1005 can include, for example, a gravity sensor that senses the motion of the device, a brightness sensor that senses the illuminance, a proximity sensor that senses the proximity of the individual, and a motion sensor that senses the motion of the individual.

A global positioning system (GPS) receiving component 1006 receives GPS signals from an artificial satellite. The use of GPS signals provides users with a variety of services.

The input/output element 1010 is provided with an interface with respect to an external device or an individual, and may include, for example, a button 1011, a microphone 1012, a speaker 1013, a vibration motor 1014, a connector 1015, or a keyboard 1016.

The touch window 1018 receives the user's touch input. Here, the touch input can drag the input of a gesture or a tap gesture. The touch window controller 1017 transmits the input touch input to the control element 1050 through the touch screen 1018. Power supply component 1019 is coupled to a battery or external power source to provide the required power to the device.

Control component 1050 utilizes a program stored in memory 1060 to display and modify portions of the content displayed on the device. Control element 1050 can write and/or read data from frame buffer 1020.

The programs stored in the memory 1060 can be classified into a plurality of modules according to functions, for example, a mobile communication module 1061, a wireless communication system module (Wi-Fi module) 1062, and a Bluetooth module (Bluetooth). Module) 1063, digital interactive multimedia DMB module 1064, camera module 1065, sensor module 1066, GPS module 1067, video image replay module 1068, audio replay module 1069, power module 1070, touch screen module 1071, user interface module (UI module) 1072 or application Application module 1073. Those of ordinary skill in the art can intuitively summarize the functions of the individual modules from the name of the module.

Below, the application module 1073 will be described in detail.

First, when the device illustrated in FIG. 16 is the first device 100, the application module 1073 can provide the first video image to the second device 200 by using the module included in the second device 100 based on the captured video image, and Receiving regional information about a portion of the first video image. Moreover, the application module 1073 can utilize the module included in the second device 100 to identify and track the object corresponding to the portion, and provide the second video image including the tracked object to the second device 200. Moreover, the application module 1073 can check the communication method related to the second device 200 by using the first device 100 including the module, and when the communication method is modified, the application module 1073 can provide the second video image. It is a modified resolution or image quality video image to the second device 200.

Moreover, when the device of FIG. 16 is the second device 200, the application module 1073 can receive the first video image by using the module included in the second device 200, and select a portion of the first video image. In this case, the size of the selected portion can be determined based on the communication method between the first device 100 and the second device 200. Moreover, the application module 1073 can utilize the module included in the second device 200 to generate regional information about the selected portion and provide the same to the first device. 100. Moreover, the application module 1073 can display the second video image received from the second device 200 by using the module included in the second device 200.

17A-17C illustrate a portion of a first video image that is displayed on a screen of the second device 200, according to an example of an exemplary embodiment.

As illustrated in FIGS. 17A-17C, the second device 200 can expand a portion of the first video image based on the user's touch input and the drag input. In this case, the second device 200 can determine the degree of expansion of the first video image based on the original resolution of the first video image. In detail, as illustrated in FIG. 17A, when the user touches and performs a dragging operation to traverse multiple portions of the window of the first video image, portions of the first video image can be expanded, as illustrated in FIG. 17B. Moreover, the second device 200 can determine the extent to which the first video image is developed in consideration of the original resolution of the first video image and the screen size of the second device 200. Therefore, as shown in FIG. 17C, even when the user continues to touch and drag, the first video image cannot be expanded beyond the degree of expansion shown in FIG. 17B.

Moreover, in order to determine the extent of the first video image expansion, the second device 200 may first receive and store data about the original resolution of the first video image from the first device 100, but is not limited to the exemplary embodiment.

18A-18C are diagrams illustrating an example of expanding a portion of a video image, the video image being displayed in a window of the second device 200 in a stepwise manner, according to an exemplary embodiment.

As illustrated in Figure 18A, a portion of the video image can be selected and the selected portion can be expanded for the first time, and then the portion of the expanded portion of the video image can be selected and expanded a second time.

19A to 19C illustrate, in an example of an exemplary embodiment, a preview image including a portion in which the first video image is expanded is displayed on the second device 200, and is displayed on the second device 200. The second video image provided from the first device 100. Here, the first device 100 and the second device 200 can talk to each other for video.

As illustrated in FIG. 19A, the user can select portion 16 of the first video image displayed on the screen of the second device 200 as the region of interest. The second device 200 can receive the first video image of the first device 100 having the first resolution, and display the received first video image on the screen of the second device 200.

Next, as illustrated in FIG. 19B, the preview image shows the expansion of the selected region of interest, the preview image can be displayed on the second device 200, and the function menu 12 can be displayed on the first device 100, the function selection The single 12 is used to determine whether to deploy and provide a portion of the first video image. Moreover, that portion of the first video image that is deployed by the second device 200 can be displayed on the predetermined area 14 of the first device 100.

When the user selects "Allow" on the function menu 12, the first device 100 can provide the second video image of the selected region of interest to the second device 200, as illustrated in FIG. 19C, and the second device 200 can display and receive. The second video image. In this case, the first device 100 can provide the second video image of the selected region of interest having the first resolution to the second device 200.

Meanwhile, when the second video image is provided to the second device 200, the first device 100 can insert the notification information to the second video image to notify the second device 200 that the second video image is the expanded image of the selected region of interest. In detail, when the first device 100 stops transmitting the first video image but transmits the second video image, the first device 100 can flow the first video image and the second video image to the second device 200, and insert the notification information into the second device. Video image. For example, when the first device 100 stops transmitting the first video image in order to transmit the second video image, the first device 100 may insert a predetermined parameter value into the predetermined packet in the inflow phase to notify the second device 200 of the second device. Video images have been provided. And, the notification information can be inserted into a real-time transfer protocol (RTP) packet header, as illustrated in FIG. 20 is an illustration of an instant delivery protocol packet header, in accordance with an exemplary embodiment.

The respective frames of the second video image provided from the first device 100 to the second device 200 may include a plurality of instant transfer protocol packets. Moreover, the first device 100 can insert a notification message into a predetermined packet of the plurality of instant transfer protocol packets corresponding to the respective frames of the second video image. For example, the first device 100 can insert a notification message into the instant delivery protocol packet, wherein the instant delivery protocol identifier column (RTP marker) included in the header of the plurality of instant delivery protocol packets corresponding to the respective frames of the second video image. Field) 90 has a bit rate of 1.

Moreover, the first device 100 can insert a notification message into a predetermined frame among the plurality of frames of the second video image. For example, the first device 100 can insert a notification message to a frame of a predetermined number, the number being calculated from the first frame of the second video image. However, it is not limited to this exemplary embodiment.

And, the first device 100 can insert a notification message to the header augmentation field 92 of the instant delivery protocol packet header. The notification message can have a predetermined bit rate. And, the notification message may include predetermined area information. The area information may be information indicating that the portion of the first video image is clipped by the first device 100 to generate a second video image. For example, the area information may be a value indicating a position of a portion of the entire screen of the original video image, the portion corresponding to the screen displaying the second video image. And, the area information can have a predetermined coordinate value.

21 is a flow illustrating a method of generating a fourth video image using the first device 100, in accordance with an exemplary embodiment. The first device 100 can provide a third video image corresponding to the execution screen of the application executed by the first device 100 to the second device 200, and receive information about the second device. The area information of the portion of the third video image of 200 is used to generate a fourth video image, and the generated fourth video image is provided to the second device 200.

In Act S2100, the first device 100 acquires a third video image from the frame buffer in the first device 100. The frame buffer may store a third video image corresponding to an execution screen of the application executed on the first device 100.

In action S2200, the first device 100 may trim a portion of the third video image based on the region information received from the second device 200. Moreover, the first device 100 may encode a portion of the trimmed portion of the third video image in action S2300 and packetize it in action S2400.

FIG. 22 is a flowchart illustrating a method of receiving a second video image by using a second device 200 to perform a video call with the first device 100 according to an exemplary embodiment. The second video image is a first video image being expanded.

In action S2205, the first device 100 and the second device 200 are connected for a video call.

In Act S2210, the first device 100 provides the first video image to the second device 200. The first device 100 can capture the user of the first device 100 and generate a first video image for a video call. Moreover, the first device 100 can transmit the generated first video image to the second device 200.

In action S2220, the second device 200 displays the first video image received from the first device 100 on the screen of the second device 200.

In Act S2230, the second device 200 selects a portion of the first video image for expansion. For example, the second device 200 can select a mouth portion of the user of the first device 100 from the first video image, or a book cover of the book held by the user of the first device 100. in In this case, the second device 200 can select a portion based on the user's touch input, but is not limited to the exemplary embodiment. The portion to be expanded can be set first during the video call, and the second device 200 can select the previously set portion from the image of the user of the first device 100.

For example, the second device 200 can track the mouth portion of the user in the face image of the user of the first device 100 to select the user's mouth portion as a part. In detail, the second device 200 can detect the face recognition information from the image of the user of the first device 100, and can track the information based on the detected face recognition information and select the mouth of the user's face of the first device 100. Part. Examples of the method of detecting facial recognition information include, for example, a feature-based method, a appearance-based method, and a hybrid method. In the feature-based approach, the geometric information of a facial or facial feature (eg, eye, nose, mouth, or chin) may be based on the size and shape of the components, the interrelationships between the components, or based on the composition of the faces. Information is used to identify faces. The feature base method may include, for example, a pure geometry method, a dynamic link architecture based method, and a hidden Markov model-based method. Moreover, according to the appearance basic method, the face can be distinguished by a model learned from a plurality of sets of learning images. Examples of the appearance-based method include a method of analyzing a feature face generated by a main component, a method of using a linear discriminant analysis, a method using a neural network-like, and a method using a support vector machine. In addition, the hybrid method uses both the feature based method and the appearance based method. Examples of hybrid methods include a basic method of linear feature analysis, a basic method of appearance standardization, and a component-based method. However, according to the current exemplary embodiment, the above three methods of detecting face recognition information are not limited, and other various methods can be used to detect face recognition information.

In action S2240, the second device 200 transmits the coordinate information of the selected portion to the first Device 100.

In Act S2250, the first device 100 displays a portion of the first video image selected by the second device 200. The first device 100 can display, for example, a first video image of a selected portion of the second device 200 in a dashed line. Moreover, on the screen of the first device 100, the first device 100 can display only a portion of the first video image selected by the second device 200.

In Act S2260, the first device 100 determines to provide the second video image with respect to the selected portion to the second device 200. The first device 100 can display the user interface based on user input input through the user interface and decide to provide the second video image with respect to the selected portion to the second device 200.

In operation 2270, the portion captured by the first device 100 corresponds to the selected portion. For example, the first device 100 can capture the book cover of the user of the first device 100 or the book holder of the book held by the user of the first device 100.

In Act S2280, the first device 100 provides the second video image to the second device 200. The first device 100 can generate a second video image by capturing a portion corresponding to the selected portion, and provide the generated second video image to the second device 200.

In Act S2290, the second device 200 displays the second video image.

At the same time, the second device 200 can display both the first video image and the second video image on the screen of the second device 200. In this case, in Act S2280, the second device 200 can receive not only the second video image but also the first video image. In addition, the second device 200 can display the first and second video images by overlapping the second video images on the first video image. The second device 200 overlaps the second video image in a portion of the first video image in which the user of the first device 100 is not displayed. In addition, the second device 200 can adjust the displayed first video image. The size of the portion and the size of the portion of the second video image being displayed. However, it is not limited to this exemplary embodiment, and the second device 200 can display the first and second video images that are not overlapped on the screen of the second device 200.

FIG. 23 is a flowchart illustrating a method of expanding and displaying a portion of a first video image when a second device 200 performs a video call with the first device 100, according to an exemplary embodiment.

In action S2305, the first device 100 and the second device 200 are connected for a video call.

In Act S2310, the first device 100 provides the first video image to the second device 200. The first device 100 can capture the user of the first device 100 and can generate the first video image for the video call. Moreover, the first device 100 can transmit the generated first video image to the second device 200.

In Act S2320, the first video image received from the first device 100 is displayed on the screen of the second device 200.

In Act S2330, the second device 200 selects a portion of the first video image to be expanded. The second device 200 can select a portion of the mouth of the user of the first device 100 or a book cover of the book held by the user of the first device 100 from the first video image.

In this case, the second device 200 can select a portion based on the user's touch input, but is not limited to this exemplary embodiment. The portion to be expanded can be set first during the video call, and the second device 200 can select the previously set portion from the image of the user of the first device 100. For example, the second device 200 can select a user's mouth as a part by tracking the mouth portion of the user in the facial image of the user of the first device 100.

In action S2340, on the screen of the second device 200, only the action being displayed is displayed. The portion of the first video image selected in S2330. The second device 200 can use the image processing to expand the selected portion of the first video image, and the expanded portion can be displayed on the screen of the second device 200. For example, when the resolution of the first video image is 200×200, and the resolution of the selected portion is 50×50, the first device 100 may expand the resolution of the selected portion to 200×200.

At the same time, the second device 200 can overlap the unfolded image on the first video image. The second device 200 can overlap the unfolded image on a portion of the first video image, which is a portion of the user who does not display the first device 100. In addition, the second device 200 can adjust the size of the portion of the first video image and the size of the portion of the second video image. However, it is not limited to this exemplary embodiment, and the second device 200 can display the first and second video images that are not overlapped on the screen of the second device 200.

24A-24C illustrate a window in which the expanded portion 42 of the first video image is displayed with the first video image in the second device 200, in accordance with an exemplary embodiment.

Referring to FIG. 24A, the mouth portion 40 of the face of the user who selects the first device 100 is displayed on the screen of the second device 200. The mouth portion 40 can be selected by the user of the second device 200. However, it is not limited to this exemplary embodiment, and the second device 200 can track and select the mouth portion 40 in the first video image 42 according to the previous setting reference.

Referring to Figure 24B, the expanded image 44 of the selected mouth portion 40 can overlap the first video image 42. In this case, the second device 200 may determine that the portion of the first video image 42 that does not display the user of the first device 100 and overlap the second video image with the portion where the user is not displayed.

In addition, referring to FIG. 24C, the expanded image 44 of the selected mouth portion 40 may not overlap the first video image 42, but the expanded image 44 of the selected mouth portion 40 and the first video Images 42 can be displayed in separate windows.

The exemplary embodiment can also be implemented in the form of a recording medium containing computer executable commands, such as a program module executed by a computer. The computer readable recording medium can be any available media executable by a computer and can be any of any denatured, invariant, detachable, and inseparable media. Moreover, examples of computer readable recording media may include computer storage media and communication media. Examples of computer storage media include denatured, invariant, detachable, and inseparable media implemented in any method or technique for storing information about computer readable instructions, data structures, programming modules, or other materials. The communication medium may include computer readable instructions, data structures, program modules or other data of modulated data signals, such as carrier waves or other transmission mechanisms, and may be any data transmission medium.

While the exemplary embodiments have been particularly shown and described with reference to the embodiments of the embodiments of the present invention And various changes in the details. The illustrative embodiments are to be considered in all respects as illustrative and not restrictive. For example, each component described in a single type can be dispersed, and similarly, components that are described as discrete can be combined.

The scope of the exemplary embodiments has been defined by the scope of the appended claims, and the scope of

100‧‧‧ first device

200‧‧‧second device

Claims (20)

An image providing method includes: transmitting a first video image of a first resolution to an external device; and receiving, from the external device, region information about a partial region of the first video image, wherein the partial region is the a portion of the first video image of a resolution; determining an area corresponding to the partial region of the first video image based on the area information; generating a second video image of the first resolution, wherein The second video image presents the determined area of the first video image; and the second video image is transmitted to the external device. The image providing method of claim 1, wherein the first resolution of the second video image is greater than the resolution of the partial region of the first video image. The image providing method of claim 1, wherein the partial region is selected by the external device. The image providing method of claim 1, wherein the partial area includes an object displayed in the first video image, and the area information is generated by the external device. The image providing method according to claim 4, wherein, when the screen of the external device is touched, the partial area is determined to be the object including the touch point corresponding to the screen. The image providing method of claim 1, wherein the method of determining the region of the first video image corresponding to the partial region based on the region information comprises determining that the partial region is included The area of the object. The image providing method of claim 6, wherein the method of determining the region of the first video image corresponding to the partial region based on the region information comprises tracking a location in the partial region The object, and the region that determines the object to be tracked. The image providing method of claim 1, wherein the first video image and the second video image are video images for videophones with the external device; and wherein the second image is transmitted When the video image is to the external device, the first video image is transmitted to the external device based on the video image captured by the camera. The image providing method of claim 8, wherein the resolution of the video image captured by the camera is greater than the first resolution of the video phone. The image providing method according to claim 1, wherein the range of the determination area is determined according to a communication method for communicating with the external device. An apparatus for providing a video image, comprising: a communication interface, configured to transmit a first video image of a first resolution to an external device, and receive regional information about a partial region of the first video image from the external device, where The partial area is the first video image of the first resolution a portion of the image: and the processor, configured to determine an area corresponding to the partial region of the first video image based on the area information, generate the second video image of the first resolution, and transmit the first And transmitting the second video image to the external device, wherein the second video image presents the determined region of the first video image. The apparatus for providing a video image according to the first aspect of the invention, wherein the first resolution of the second video image is greater than the resolution of the partial area of the first video image. The apparatus for providing a video image according to claim 11, wherein the partial area is selected by the external device. The apparatus for providing a video image according to claim 11, wherein the partial area includes an object displayed in the first video image, and the area information is generated by the external device. The apparatus for providing a video image according to claim 11, wherein the processor is configured to determine the area containing the object in the partial area. The apparatus for providing a video image according to claim 15, wherein the processor is configured to track the object in the partial area and to determine the area containing the object being tracked. The apparatus for providing video images according to claim 11, wherein the first video image and the second video image are video images for videophones with the external device; and wherein the processor The first video is based on a video image captured by the camera An image is provided to the external device. The device for providing a video image according to claim 17, wherein the resolution of the video image captured by the camera is greater than the first resolution of the video phone. The apparatus for providing a video image according to claim 11, wherein the range of the determination area is determined according to a communication method for communicating with the external device. A non-transitory computer readable recording medium having recorded thereon a program for causing a computer to execute a method, wherein the computer is included in a first device, the method comprising: transmitting a first video image of a first resolution Receiving, to the external device, region information about a partial region of the first video image, wherein the partial region is part of the first video image of the first resolution; Determining, by the information, an area corresponding to the partial area of the first video image; generating a second video image of the first resolution, wherein the second video image presents the determined area of the first video image; And transmitting the second video image to the external device.