CN106408560B - Method and device for rapidly acquiring effective image - Google Patents

Abstract

The invention provides a method for quickly acquiring an effective image, which comprises the following steps: receiving a preset starting instruction, and starting the camera and the infrared sensor; determining the position of effective content according to the position of the finger of the user, which is acquired by the infrared sensor, in the original image shot by the camera; and intercepting the original image according to the position of the effective content to obtain an effective image. According to the invention, the effective image can be effectively obtained by the way that the finger of the user touches the actual position, the operation is more convenient, and the image capturing efficiency is high.

Description

A method and device for quickly acquiring effective images

technical field

The invention belongs to the field of image processing, and in particular relates to a method and a device for rapidly acquiring an effective image.

Background technique

With the development of technology, more and more electronic devices are equipped with cameras. The images obtained by the camera can facilitate users to quickly and effectively collect on-site data. For example, by using the camera of the learning machine to capture an image including topic information, and combining with a text recognition tool, the text information in the image can be obtained. Matching according to the acquired text information can effectively carry out topic search.

In the image captured by the camera, the image required by the user may be a part of the area. For example, when recognizing text in an image, the user only needs to recognize and include part of the topic content information. Therefore, users usually take screenshots of images. The current way of capturing an image is usually that the user adjusts the size of the area of the marquee so that it can cover the subject to be captured by the user, and after the adjustment is completed, click the OK button to complete the screenshot.

Since the size of the selection frame needs to be adjusted for image capture in the prior art, after the adjustment is completed, click and confirm all operations, the capture process is troublesome, which is not conducive to improving the capture efficiency.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a method for quickly obtaining an effective image, so as to solve the need to adjust the size of the selection frame for the image interception in the prior art. The question of interception efficiency.

In a first aspect, an embodiment of the present invention provides a method for quickly acquiring an effective image, the method comprising:

Receive pre-set startup instructions, activate the camera and infrared sensor;

In the original image captured by the camera, the position of the user's finger collected by the infrared sensor determines the position of the valid content;

According to the position of the valid content, a valid image is obtained by intercepting the original image.

In combination with the first aspect, in a first possible implementation manner of the first aspect,

The step of determining the position of the valid content based on the position of the user's finger collected by the infrared sensor in the original image captured by the camera includes:

When it is detected that the device is in a stable state, the original image including the valid image is captured by the camera;

The first infrared signal is detected by an infrared sensor, and the position of the fingertip end of the first infrared signal is used as the starting position of the effective image;

The second infrared signal is detected by an infrared sensor, and the end position of the effective image is taken as the end position of the fingertip according to the second infrared signal.

In combination with the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first infrared signal is detected by an infrared sensor, and an end position of the first infrared signal is used as the effective The step of starting the image further includes: displaying a first cursor in the original image, the position of the first cursor corresponding to the starting position;

The step of detecting the second infrared signal by the infrared sensor and using the end position of the second infrared signal as the end position of the effective image further includes: displaying a second cursor in the original image, and the second cursor is The position corresponds to the end position.

With reference to the first aspect, in a third possible implementation manner of the first aspect, in the original image captured by the camera, the position of the user's finger collected by the infrared sensor is used to determine the position of the valid content. Specifically:

When it is detected that the device is in a stable state, the original image including the valid image is captured by the camera;

The third infrared signal is detected by an infrared sensor, and the end positions of the two fingertips included in the third infrared signal are used as the starting position and the ending position of the effective image, respectively.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the preset startup instruction includes one or more of a preset hardware switch startup instruction, an unlock pattern startup instruction, and a fingerprint unlock startup instruction .

In a second aspect, an embodiment of the present invention provides a device for rapidly acquiring an effective image, the device comprising:

A start-up unit, used to receive a preset start-up instruction and start the camera and the infrared sensor;

a position determination unit, configured to determine the position of the valid content from the position of the user's finger collected by the infrared sensor in the original image captured by the camera;

The effective image intercepting unit, according to the position of the effective content, intercepts the original image to obtain an effective image.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the location determination unit includes:

a first photographing subunit, configured to photograph an original image including a valid image through a camera when it is detected that the device is in a stable state;

a starting position determination subunit, configured to detect a first infrared signal through an infrared sensor, and use the fingertip end position of the first infrared signal as the starting position of the effective image;

The end position determination subunit is used to detect the second infrared signal through the infrared sensor, and use the end position of the fingertip according to the second infrared signal as the end position of the effective image.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the starting position determination subunit is further configured to: display the first cursor in the original image, and the the position of the first cursor corresponds to the starting position;

The end position determination subunit is further configured to: display a second cursor in the original image, where the position of the second cursor corresponds to the end position.

With reference to the second aspect, in a third possible implementation manner of the second aspect, the location determination unit includes:

The second shooting subunit is used to shoot the original image including the valid image through the camera when it is detected that the device is in a stable state;

The simultaneous position determination subunit is used for detecting the third infrared signal through the infrared sensor, and the two fingertip end positions included in the third infrared signal are respectively used as the starting position and the ending position of the effective image.

With reference to the second aspect, in a fourth possible implementation manner of the second aspect, the preset startup instruction includes one or more of a preset hardware switch startup instruction, an unlock pattern startup instruction, and a fingerprint unlock startup instruction .

In the present invention, by activating the camera and the infrared sensor, the camera captures the original image, the infrared sensor detects the infrared signal corresponding to the user's finger in the original image, and determines the position of the effective content according to the detected infrared signal, and according to the position, A valid image can be obtained from the original image. In the present invention, an effective image can be effectively obtained by touching the actual position with the user's finger, the operation is more convenient, and the image capturing efficiency is high.

Description of drawings

Fig. 1 is the realization flow chart of the method for rapidly acquiring valid images provided by the first embodiment of the present invention;

Fig. 2 is the realization flow chart of the method for rapidly acquiring valid images provided by the second embodiment of the present invention;

Fig. 3 is the realization flow chart of the method for rapidly acquiring valid images provided by the third embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an apparatus for rapidly acquiring an effective image provided by a fourth embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The purpose of the embodiments of the present invention is to provide a method for quickly acquiring an effective image, so as to solve the problem that in the process of acquiring an image of a target area in the prior art, the user needs to make a frame selection on the captured image, and after the frame selection is completed, click Confirm the button to generate the desired image. This image acquisition method requires multiple operation steps by the user, and the operation is relatively troublesome, which makes the image acquisition efficiency of the target area low. The present invention will be further described below in conjunction with the accompanying drawings.

Example 1:

FIG. 1 shows the implementation process of the method for quickly acquiring an effective image provided by the first embodiment of the present invention, which is described in detail as follows:

In step S101, a preset activation instruction is received, and the camera and the infrared sensor are activated.

Specifically, the startup instruction in the embodiment of the present invention may be a startup instruction of a hardware switch, or may be a startup instruction corresponding to an unlocking path in an unlocking image, or may also preset feature information of a fingerprint. The received fingerprint features are compared, and when the matching requirements are met, a start-up instruction is directly generated.

The hardware switch described in the embodiment of the present invention may be a preset special switch set for starting an application program of image capture type. Of course, the switch may be a new switch added to the terminal, may also be defined by a switch based on the switch of the existing terminal, or may be two or a combination of two switches of the existing terminal.

The startup instruction can be triggered when the terminal is in a standby state or a shutdown state, or can be triggered when the terminal is in an activated state of other applications. When the terminal is finally turned off, the terminal is first triggered to turn on, and then the startup instruction of the image capture class application is processed in the turned-on state.

The infrared sensor can be used to detect infrared objects, such as human body parts. When the user's hand is placed in the detection area, characteristic information such as the shape of the hand in the detection area can be obtained through the infrared sensor.

In step S102, in the original image captured by the camera, the position of the user's finger collected by the infrared sensor determines the position of the valid content.

Specifically, the original image in the embodiment of the present invention may be an image corresponding to when the device remains in a stable state, that is, when the content of the picture acquired by the camera in the device does not change.

In addition, in order to make it more convenient for users to obtain valid images, when it is detected that the device is currently in a stable state, prompt information about the location of valid images can be issued, such as text prompts, image prompts, and sound prompts.

Continue to hold the device steady after taking the original image to determine the location of the valid image. The position of the valid image may include a start position and an end position, of course, a corresponding valid image may also be searched through a position.

For example, for the way of determining the starting position and ending position, the user can point the finger to the starting position corresponding to all valid images. After the device detects the user's finger through the infrared sensor, it searches the original image according to the position of the finger. The corresponding position is taken as the starting position of the valid image. After the search for the starting position is completed, a determination instruction is issued, and the determination instruction can be expressed as a change in the state of the cursor displayed on the device screen, such as a change from a blinking state to a static state.

Similarly, after determining the starting position, continue to keep the device in a stable state, the user can point the finger to the end position corresponding to all valid images, after the device detects the user's finger through the infrared sensor, according to the position of the finger, on the original image Find the corresponding position as the end position of the valid image. After the search for the starting position is completed, a determination instruction is issued, and the determination instruction can be expressed as a change in the state of the cursor displayed on the device screen, such as a change from a blinking state to a static state.

In step S103, according to the position of the valid content, a valid image is obtained by intercepting the original image.

According to the position of the valid content, such as the start position and the end position, an area for generating a valid image can be directly generated, and a valid image can be obtained by intercepting the area. Performing subsequent searching or processing according to the valid images can make the subsequent operations more targeted and more accurate.

Embodiment 2:

FIG. 2 shows the implementation process of the method for quickly acquiring a valid image provided by the second embodiment of the present invention, which is described in detail as follows:

In step S201, a preset activation instruction is received, and the camera and the infrared sensor are activated.

In step S202, when it is detected that the device is in a stable state, an original image including a valid image is captured by a camera.

The stable state in the embodiment of the present invention means that the device is not currently shaking, rotating, or moving back and forth, and the image content obtained by the camera of the device has not changed.

The original image acquired by the camera includes the content of the effective image that the user wishes to acquire. The original image is obtained automatically, and does not require the user to click a shooting button or other operations. Therefore, by judging the stable state, the automatically acquired original image is beneficial to reduce the user's operation steps and improve the convenience of the user.

In step S203, a first infrared signal is detected by an infrared sensor, and a fingertip end position of the first infrared signal is used as a starting position of the effective image.

When the device continues to maintain a stable state, the user may be prompted to input the first infrared signal, that is, the user may click on the starting position corresponding to the image to be captured with a finger. The infrared sensor detects the position of the user's hand, and when the finger stops moving, the position pointed to by the finger is identified according to the characteristic information of the finger, so that the starting position of the effective image in the original image can be effectively determined.

As an optimizable implementation manner, after the starting position of the valid image is determined, a first cursor may be displayed in the original image, and the position of the first cursor corresponds to the starting position. Alternatively, the first cursor may also be displayed during the detection process, and after the starting position is determined, the state of the first cursor is changed, for example, switching from a blinking state to a static state, and the like.

In step S204, a second infrared signal is detected by an infrared sensor, and the end position of the effective image is taken as the end position of the fingertip according to the second infrared signal.

Likewise, when the device continues to maintain a stable state, the user can be prompted for the input of the second infrared signal, that is, the user can click on the end position corresponding to the image to be captured with a finger. The infrared sensor detects the position of the user's hand, and when the finger stops moving, it identifies the position pointed to by the finger according to the characteristic information of the finger, so that the end position of the valid image in the original image can be effectively determined.

As an optimizable implementation manner, after the end position of the valid image is determined, a second cursor may be displayed in the original image, and the position of the second cursor corresponds to the end position. Alternatively, the second cursor can also be displayed during the detection process, and after the end position is determined, the state of the second cursor is changed, such as switching from a blinking state to a static state.

In step S205, according to the position of the valid content, a valid image is obtained by intercepting the original image.

After the position of the second cursor is determined, the effective image can be automatically captured, thereby further improving the convenience of image capturing.

On the basis of the first embodiment, the present invention specifically introduces determining the position of an effective image by pointing two fingers, which improves the convenience of operation and facilitates the precision of effective image interception.

Embodiment three:

FIG. 3 shows the implementation process of the method for quickly acquiring an effective image provided by the third embodiment of the present invention, which is described in detail as follows:

In step S301, a preset activation instruction is received, and the camera and the infrared sensor are activated.

In step S302, when it is detected that the device is in a stable state, an original image including a valid image is captured by a camera.

In step S303, a third infrared signal is detected by an infrared sensor, and the end positions of the two fingertips included in the third infrared signal are used as the starting position and the ending position of the effective image, respectively.

In order to further improve the efficiency of effective image interception, the embodiment of the present invention may include judging the number of detectable fingertips in the third infrared signal. When the number of fingertips is two, the starting point of the effective image is determined at the same time. start and end positions.

When the number of fingertips detected at the same time exceeds two, it means that the user may have made an input error, or directly use the position of the uppermost finger as the starting position of the valid image, and the position of the lowermost finger as the ending position of the valid image .

On the basis of the second embodiment, the embodiment of the present invention further judges the number of fingertips in the image recognized by the infrared sensor, and when the number of fingertips is two, the starting position of the valid image can be directly determined and the end position, further improving the convenience of identification.

Embodiment 4:

FIG. 4 is a schematic structural diagram of a device for rapidly acquiring a valid image provided by an embodiment of the present invention, and the details are as follows:

The device for rapidly acquiring an effective image according to the embodiment of the present invention includes:

A start-up unit 401, configured to receive a preset start-up instruction, and start the camera and the infrared sensor;

a position determining unit 402, configured to determine the position of the valid content from the position of the user's finger collected by the infrared sensor in the original image captured by the camera;

The effective image intercepting unit 403, according to the position of the effective content, intercepts the original image to obtain an effective image.

Preferably, the position determination unit includes:

a first photographing subunit, configured to photograph an original image including a valid image through a camera when it is detected that the device is in a stable state;

a starting position determination subunit, configured to detect a first infrared signal through an infrared sensor, and use the fingertip end position of the first infrared signal as the starting position of the effective image;

The end position determination subunit is used to detect the second infrared signal through the infrared sensor, and use the end position of the fingertip according to the second infrared signal as the end position of the effective image.

Preferably, the starting position determination subunit is further configured to: display a first cursor in the original image, and the position of the first cursor corresponds to the starting position;

The end position determination subunit is further configured to: display a second cursor in the original image, where the position of the second cursor corresponds to the end position.

Preferably, the position determination unit includes:

The second shooting subunit is used to shoot the original image including the valid image through the camera when it is detected that the device is in a stable state;

The simultaneous position determination subunit is used for detecting the third infrared signal through the infrared sensor, and the two fingertip end positions included in the third infrared signal are respectively used as the starting position and the ending position of the effective image.

Preferably, the preset activation instruction includes one or more of preset hardware switch activation instructions, unlock pattern activation instructions, and fingerprint unlock activation instructions.

The apparatus for rapidly acquiring an effective image according to the embodiment of the present invention corresponds to the method for rapidly acquiring an effective image in the first to third embodiments, and will not be repeated here.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (6)

1. a method for rapidly acquiring an effective image, characterized in that the method comprises: When the terminal is in a standby state, receive a preset start command to start the camera and infrared sensor; In the original image captured by the camera, the position of the user's finger collected by the infrared sensor determines the position of the valid content, and the original image is the image corresponding to the image content obtained by the camera when the content does not change; According to the position of the valid content, a valid image is obtained by intercepting the original image, and a search is performed according to the valid image; The step of determining the position of the valid content based on the position of the user's finger collected by the infrared sensor in the original image captured by the camera includes: When it is detected that the device is in a stable state, the original image including the valid image is captured by the camera; The first infrared signal is detected by an infrared sensor, and the position of the fingertip end of the first infrared signal is used as the starting position of the effective image; The second infrared signal is detected by the infrared sensor, and the end position of the effective image is taken as the end position of the fingertip according to the second infrared signal; The step of detecting the first infrared signal by the infrared sensor and using the end position of the first infrared signal as the starting position of the effective image further includes: displaying a first cursor in the original image, the first cursor The position corresponds to the starting position; The step of detecting the second infrared signal by the infrared sensor and using the end position of the second infrared signal as the end position of the effective image further includes: displaying a second cursor in the original image, and the second cursor is The position corresponds to the end position. 2. The method according to claim 1, wherein, in the original image captured by the camera, the position of the user's finger collected by the infrared sensor, the step of determining the position of the valid content is specifically: When it is detected that the device is in a stable state, the original image including the valid image is captured by the camera; The third infrared signal is detected by an infrared sensor, and the end positions of the two fingertips included in the third infrared signal are used as the starting position and the ending position of the effective image, respectively. 3 . The method according to claim 1 , wherein the preset activation instruction comprises one or more of preset hardware switch activation instructions, unlock pattern activation instructions, and fingerprint unlock activation instructions. 4 . 4. A device for rapidly acquiring an effective image, wherein the device comprises: a start-up unit, used to receive a preset start-up instruction and start the camera and the infrared sensor when the terminal is in a standby state; a position determination unit, configured to determine the position of the valid content based on the position of the user's finger collected by the infrared sensor in the original image captured by the camera, where the original image is when the content of the image captured by the camera does not change the corresponding image; an effective image interception unit, according to the position of the effective content, intercepts the original image to obtain an effective image, and performs a search according to the effective image; The location determination unit includes: a first photographing subunit, configured to photograph an original image including a valid image through a camera when it is detected that the device is in a stable state; a starting position determination subunit, configured to detect a first infrared signal through an infrared sensor, and use the fingertip end position of the first infrared signal as the starting position of the effective image; an end position determination subunit, configured to detect a second infrared signal through an infrared sensor, and use the fingertip end position of the second infrared signal as the end position of the effective image; The starting position determination subunit is further configured to: display a first cursor in the original image, and the position of the first cursor corresponds to the starting position; The end position determination subunit is further configured to: display a second cursor in the original image, where the position of the second cursor corresponds to the end position. 5. The device according to claim 4, wherein the position determining unit comprises: The second shooting subunit is used to shoot the original image including the valid image through the camera when it is detected that the device is in a stable state; The simultaneous position determination subunit is used for detecting the third infrared signal through the infrared sensor, and the two fingertip end positions included in the third infrared signal are respectively used as the starting position and the ending position of the effective image. 6 . The device according to claim 4 , wherein the preset activation instruction comprises one or more of preset hardware switch activation instructions, unlock pattern activation instructions, and fingerprint unlock activation instructions. 7 .

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