CN102263928A - Video telephone image magnification method, terminal and video telephone system - Google Patents
Video telephone image magnification method, terminal and video telephone system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42203—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] sound input device, e.g. microphone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
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- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/4728—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region
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- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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Abstract
The invention provides a video telephone image magnification method, a terminal and a video telephone system, which belong to the field of mobile communication. The video telephone image magnification method is applied to the video telephone system. The video telephone system comprises a first terminal and a second terminal, wherein the first terminal transmits a visual image; and the second terminal receives the visual image. The method comprises that: the first terminal receives an image magnification message from the second terminal, wherein the image magnification message carries the position information of an area to be magnified and a magnification factor; the first terminal acquires an original image, and intercepts the area to be magnified from the original image according to the position information of the area to be magnified; and the first terminal performs image coding on the area to be magnified according to the magnification factor, codes the area to be magnified into a key frame and transmits the key frame to the second terminal. By the technical scheme provided by the invention, high-fidelity video telephone image magnification can be realized.
Description
Technical field
The present invention relates to moving communicating field, be meant a kind of method, terminal and video-phone system of amplifying the video telephone image especially.
Background technology
Along with the arrival in 3G epoch, mobile video telephone has begun to step into the life of ordinary people.It is a kind of multimedia communication service that integrates image, speech, can allow the aspectant real-time communication of people, realizes when people converse not only hearing its, but also the dream of seeing its people.
But be subjected to the restriction of communication bandwidth and resource, ITU (International Telecommunications Union) is when formulating the related protocol of video telephone, the regulation code check is 64kbps, and therefore video telephone can't reach very high video resolution, and this just causes the user possibly can't see the details of some image clearly.
At present when the video telephone image is amplified, employing be that image is carried out the cutting interpolation processing to reach the purpose of enlarged image.But because the transmitting terminal portable terminal carried out image contract, encoding compression before sending former video data, there has been a large amount of information to be lost, this moment, the receiving terminal portable terminal carried out the cutting interpolation processing to the data that receive again, will certainly increase information loss, make the receiving terminal user still can't see image detail clearly.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method, terminal and video-phone system of amplifying the video telephone image, can realize the amplification video telephone image of high-fidelity.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
On the one hand, provide a kind of method of amplifying the video telephone image, be applied in the video-phone system, described video-phone system comprises first terminal that sends visual image and second terminal that receives visual image, and described method comprises:
Described first terminal receives the enlarged image message that described second terminal sends, carry in the described enlarged image message remain magnification region positional information and treat multiplication factor;
Described first terminal is obtained original image, and intercepts out from described original image according to the described positional information for the treatment of magnification region and to treat magnification region;
Described first terminal is carried out image encoding according to described multiplication factor to the described magnification region for the treatment of, the described magnification region for the treatment of is encoded to key frame, and described key frame is sent to described second terminal.
Wherein, the described positional information of magnification region for the treatment of comprises:
Treat the cornerwise starting point coordinate and the end point coordinate of magnification region; Or
Treat the center point coordinate and the radius of magnification region; Or
Treat the relative position of magnification region in full size image.
Wherein, described and described key frame is sent to also comprises after described second terminal:
Described first terminal receives that described second terminal sends stops enlarged image message;
Described first terminal is obtained original image, adopts first compression ratio that described original image is carried out full-scale image encoding, and the Frame that coding obtains is sent to described second terminal.
Wherein, describedly treat that with described magnification region is encoded to key frame and comprises:
Described first terminal adopts second compression ratio that the described magnification region for the treatment of is encoded, and described second compression ratio is less than described first compression ratio.
The embodiment of the invention also provides a kind of terminal, is applied in the video-phone system, is used to send visual image, and described video-phone system also comprises the distant terminal that receives visual image, and described terminal comprises:
The message sink module is used to receive the enlarged image message that distant terminal sends, carry in the described enlarged image message remain magnification region positional information and treat multiplication factor;
Interception module is used to obtain original image, and intercepts out from described original image according to the described positional information for the treatment of magnification region and to treat magnification region;
The coding sending module is used for according to described multiplication factor the described magnification region for the treatment of being carried out image encoding, the described magnification region for the treatment of is encoded to key frame, and described key frame is sent to described distant terminal.
Wherein, described message sink module is used to also to receive that described distant terminal sends stops enlarged image message;
Described coding sending module also is used to adopt first compression ratio that the original image that described interception module obtains is carried out full-scale image encoding, and the Frame that coding obtains is sent to described distant terminal.
Wherein, described coding sending module specifically is used to adopt second compression ratio that the described magnification region for the treatment of is encoded, and described second compression ratio is less than described first compression ratio.
The embodiment of the invention also provides a kind of method of amplifying the video telephone image, is applied in the video-phone system, and described video-phone system comprises first terminal that sends visual image and second terminal that receives visual image, and described method comprises:
Described second terminal receives the positional information for the treatment of magnification region of user's input and treats multiplication factor;
Described second terminal sends enlarged image message to described first terminal, carries in the described enlarged image message to remain the positional information and the multiplication factor of magnification region;
Described second terminal receives the key frame that described first terminal sends, described key frame be described first terminal from the original image that obtains, intercept out treat magnification region after, according to described multiplication factor the described magnification region for the treatment of is carried out the Frame that image encoding obtains.
The embodiment of the invention also provides a kind of terminal, is applied in the video-phone system, is used to receive visual image, and described video-phone system also comprises the distant terminal that sends visual image, and described terminal comprises:
Input module is used to receive the positional information for the treatment of magnification region of user's input and treat multiplication factor;
Sending module is used for sending enlarged image message to described distant terminal, carries in the described enlarged image message to remain the positional information and the multiplication factor of magnification region;
The image receiver module, be used to receive the key frame that described distant terminal sends, described key frame be described distant terminal from the original image that obtains, intercept out treat magnification region after, according to described multiplication factor the described magnification region for the treatment of is carried out the Frame that image encoding obtains.
The embodiment of the invention also provides a kind of video-phone system, and described video-phone system comprises first terminal that sends visual image and second terminal that receives visual image,
Described first terminal is used to receive the enlarged image message that described second terminal sends, carry in the described enlarged image message remain magnification region positional information and treat multiplication factor, obtain original image, and intercept out from described original image according to the described positional information for the treatment of magnification region and to treat magnification region, according to described multiplication factor the described magnification region for the treatment of is carried out image encoding, the described magnification region for the treatment of is encoded to key frame, and described key frame is sent to described second terminal;
Described second terminal is used to receive the positional information for the treatment of magnification region of user's input and treat multiplication factor, send enlarged image message to described first terminal, carry in the described enlarged image message and remain the positional information and the multiplication factor of magnification region, receive the key frame that described first terminal sends, described key frame be described first terminal from the original image that obtains, intercept out treat magnification region after, according to described multiplication factor the described magnification region for the treatment of is carried out the Frame that image encoding obtains.
Embodiments of the invention have following beneficial effect:
In the such scheme, allow the terminal use select to want the image detail in a certain zone seen, and relevant information fed back to transmitting side terminal, by transmitting side terminal original image is carried out processing and amplifying, avoided the loss of compression back amplification, kept the detailed information of image to greatest extent, can make the amplification of video image high-fidelity image information, video pictures more clearly can be provided, make the receiving terminal user see institute clearly and want to see image detail.
Description of drawings
Fig. 1 is the schematic flow sheet of method of the amplification video telephone image of the embodiment of the invention;
Fig. 2 is the structural representation of the terminal of the embodiment of the invention;
Fig. 3 is another schematic flow sheet of method of the amplification video telephone image of the embodiment of the invention;
Fig. 4 is another structural representation of the terminal of the embodiment of the invention;
Fig. 5 is the flow process schematic diagram again of method of the amplification video telephone image of the embodiment of the invention.
Embodiment
For technical problem, technical scheme and advantage that embodiments of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention in the prior art when the video telephone image is amplified, the receiving terminal user may still can't see the problem of image detail clearly, a kind of method, terminal and video-phone system of amplifying the video telephone image is provided, can realizes the amplification video telephone image of high-fidelity.
Fig. 1 is the schematic flow sheet of method of the amplification video telephone image of the embodiment of the invention, the method of the amplification video telephone image of present embodiment is applied in the video-phone system, video-phone system comprises first terminal that sends visual image and second terminal that receives visual image, as shown in Figure 1, present embodiment comprises:
Step 101: first terminal receives the enlarged image message that second terminal sends, carry in the enlarged image message remain magnification region positional information and treat multiplication factor;
Step 102: first terminal is obtained original image, and intercepts out from original image according to the positional information for the treatment of magnification region and to treat magnification region;
Step 103: first terminal is treated magnification region according to multiplication factor and is carried out image encoding, will treat that magnification region is encoded to key frame, and key frame is sent to second terminal.
Wherein, the positional information for the treatment of magnification region comprises cornerwise starting point coordinate and the end point coordinate for the treatment of magnification region; Or treat the center point coordinate and the radius of magnification region; Or treat the relative position of magnification region in full size image.
Afterwards, if first terminal receive that second terminal sends stop enlarged image message, then first terminal is obtained original image, adopts first compression ratio that original image is carried out full-scale image encoding, and the Frame that coding obtains is sent to second terminal.Wherein, first terminal adopts second compression ratio to treat magnification region and encodes, and second compression ratio is less than first compression ratio.
The method of the amplification video telephone image of present embodiment, allow the terminal use select to want the image detail in a certain zone seen, and relevant information fed back to transmitting side terminal, by transmitting side terminal original image is carried out processing and amplifying, avoided the loss of compression back amplification, kept the detailed information of image to greatest extent, can make the amplification of video image high-fidelity image information, video pictures more clearly can be provided, make the receiving terminal user see institute clearly and want to see image detail.
Fig. 2 is the structural representation of the terminal of the embodiment of the invention, and the terminal applies of present embodiment is used to send visual image in video-phone system, and video-phone system also comprises the distant terminal that receives visual image, and as shown in Figure 2, present embodiment comprises:
Wherein, message sink module 20 is used to also to receive that distant terminal sends stops enlarged image message;
When treating magnification region and encode, coding sending module 20 specifically is used to adopt second compression ratio to encode, and this second compression ratio is less than first compression ratio.
The terminal of present embodiment, allow the terminal use select to want the image detail in a certain zone seen, and relevant information fed back to transmitting side terminal, by transmitting side terminal original image is carried out processing and amplifying, avoided the loss of compression back amplification, kept the detailed information of image to greatest extent, can make the amplification of video image high-fidelity image information, video pictures more clearly can be provided, make the receiving terminal user see institute clearly and want to see image detail.
Fig. 3 is another schematic flow sheet of method of the amplification video telephone image of the embodiment of the invention, the method of the amplification video telephone image of present embodiment is applied in the video-phone system, video-phone system comprises first terminal that sends visual image and second terminal that receives visual image, as shown in Figure 3, present embodiment comprises:
Step 301: second terminal receives the positional information for the treatment of magnification region of user's input and treats multiplication factor;
Step 302: second terminal sends enlarged image message to first terminal, carries in the enlarged image message to remain the positional information and the multiplication factor of magnification region;
Step 303: second terminal receives the key frame that first terminal sends, key frame be first terminal from the original image that obtains, intercept out treat magnification region after, treat magnification region according to multiplication factor and carry out the Frame that image encoding obtains.
The method of the amplification video telephone image of present embodiment, allow the terminal use select to want the image detail in a certain zone seen, and relevant information fed back to transmitting side terminal, by transmitting side terminal original image is carried out processing and amplifying, avoided the loss of compression back amplification, kept the detailed information of image to greatest extent, can make the amplification of video image high-fidelity image information, video pictures more clearly can be provided, make the receiving terminal user see institute clearly and want to see image detail.
Fig. 4 is another structural representation of the terminal of the embodiment of the invention, and the terminal applies of present embodiment is used to receive visual image in video-phone system, and video-phone system also comprises the distant terminal that sends visual image, and as shown in Figure 4, present embodiment comprises:
Sending module 42 is used for sending enlarged image message to distant terminal, carries in the enlarged image message to remain the positional information and the multiplication factor of magnification region;
The terminal of present embodiment, allow the terminal use select to want the image detail in a certain zone seen, and relevant information fed back to transmitting side terminal, by transmitting side terminal original image is carried out processing and amplifying, avoided the loss of compression back amplification, kept the detailed information of image to greatest extent, can make the amplification of video image high-fidelity image information, video pictures more clearly can be provided, make the receiving terminal user see institute clearly and want to see image detail.
The embodiment of the invention also provides a kind of video-phone system, and video-phone system comprises first terminal that sends visual image and second terminal that receives visual image, wherein,
First terminal is used to receive the enlarged image message that second terminal sends, carry in the enlarged image message remain magnification region positional information and treat multiplication factor, obtain original image, and intercept out from original image according to the positional information for the treatment of magnification region and to treat magnification region, treat magnification region according to multiplication factor and carry out image encoding, to treat that magnification region is encoded to key frame, and key frame will be sent to second terminal;
Second terminal is used to receive the positional information for the treatment of magnification region of user's input and treat multiplication factor, send enlarged image message to first terminal, carry in the enlarged image message and remain the positional information and the multiplication factor of magnification region, receive the key frame that first terminal sends, key frame be first terminal from the original image that obtains, intercept out treat magnification region after, treat magnification region according to multiplication factor and carry out the Frame that image encoding obtains.
The video-phone system of present embodiment, allow the terminal use select to want the image detail in a certain zone seen, and relevant information fed back to transmitting side terminal, by transmitting side terminal original image is carried out processing and amplifying, avoided the loss of compression back amplification, kept the detailed information of image to greatest extent, can make the amplification of video image high-fidelity image information, video pictures more clearly can be provided, make the receiving terminal user see institute clearly and want to see image detail.
Be example with the video-phone system in the 3G network below, concrete step is further introduced the method for amplification video telephone image of the present invention in 5 in conjunction with the accompanying drawings:
Portable terminal A is to portable terminal B dialing, and by 3G network foundation link, video coding is carried out in both uses H.263 agreement, and the resolution that sends image all is 176x144, and both sides can see the other side's video and can converse;
The user of portable terminal B opens menu, and option " unlatching zoom function " is arranged in the menu, and the user selects to open zoom function, and portable terminal B sends message informing portable terminal A to portable terminal A and opens zoom function.
Need to carry out information interaction in dialing the portable terminal process between portable terminal A and the portable terminal B, the mode of information interaction can have multiple modes such as short message, speech recognition.Consider simple and real-time, in the present embodiment, the mode that can adopt DTMF (dual-tone multifrequency) to send password is carried out information interaction, at first the encoding and decoding cipher rule is arranged, and is respectively: 101, and the expression user opens zoom function; 102, expression user closing image enlarging function; 201,1/4th zones, upper left side of presentation video; 202,1/4th zones, upper right side of presentation video; 203,1/4th zones, lower left of presentation video; 204,1/4th zones, lower right of presentation video; 301, the expression multiplication factor is 4 times; 302, the expression multiplication factor is 16 times; These configuration rule can be stored in the memory of portable terminal in advance.
In the present embodiment, portable terminal B can send DTMF password 101 to portable terminal A, notifies its preparation to open zoom function;
When the user selects to treat magnification region, following mode can be arranged:
(1) direct input coordinate mode, for example input treat magnification region the diagonal starting point coordinate (sx, sy) and the end point coordinate (ex, ey); Or the input starting point coordinate (sx, sy) and regional length and width (dx, dy); Can also import center point coordinate, by built-in acquiescence or by the radius of user input, determine to treat magnification region then.
(2) for touch-screen mobile phone, the user can be directly slides on screen or clicks and select to treat magnification region, is treated information such as the coordinate of magnification region and length and width by mobile terminal records.
The coordinate information that it should be noted that above record is a relative coordinate, and promptly coordinate position is with respect to the length-width ratio of image, and for example the central point of a secondary picture is recorded as that (1/2W, 1/2H), wherein W and H are respectively the Breadth Maximum and the maximum heights of image.
(3) image division is become each zonule, wait by left and right, upper, middle and lower and represent to treat magnification region, perhaps directly each zone is identified with numeral;
The positional information for the treatment of magnification region that step 504, portable terminal B are selected the user and treat that multiplication factor sends to portable terminal A;
What suppose user's selection is that the zone, upper left side is amplified 4 times, and in the present embodiment, portable terminal B sends DTMF password 201,301 to portable terminal A;
After step 505, portable terminal A receive information, obtain high-resolution original image from camera;
After portable terminal A receives the DTMF password, get access to a secondary high-resolution original image from camera, the camera of supposing portable terminal A is 300,000 pixels, and the original image resolution of obtaining is 640x480;
Portable terminal A intercepts the image of the upper left side 320x240 pixel of 640x480 original image according to the DTMF password 201,301 that receives;
The 320x240 image that portable terminal A will intercept later extracts again, and according to protocol code H.263, adopts lower compression ratio to generate the key frame of a secondary 176x144 resolution, stops subsequently encoding;
Before user party B-subscriber's closing image enlarging function, portable terminal A repeats above-mentioned steps 505-508, and key frame is sent to portable terminal B afterwards;
The portable terminal party B-subscriber opens menu, selects " closing image enlarging function ", and portable terminal B sends password 102 to portable terminal A;
Portable terminal A obtains original image from camera again, does not do processing and amplifying, carries out full-scale coding, and first two field picture of generation is a key frame, and the compression ratio that adopts when full-scale coding is greater than treating the compression ratio that adopts when magnification region is encoded;
Portable terminal A stops to send enlarged image to portable terminal B, sends without enlarged image to portable terminal B.
If mobile phone users is hung up the telephone, then finish visual session.
The embodiment of the invention allows mobile phone users select to want the image detail in a certain zone seen, and relevant information fed back to the transmitting terminal portable terminal, by the transmitting terminal portable terminal to from camera collection to initial data carry out processing and amplifying, avoided the loss of compression back amplification to image information, the detailed information that has kept image to greatest extent, can make the amplification of video image high-fidelity, video pictures more clearly can be provided, make the receiving terminal user see institute clearly and want to see image detail.
Many functional parts described in this specification all are called as module, so that emphasize the independence of its implementation more especially.
In the embodiment of the invention, module can realize with software, so that carried out by various types of processors.For instance, the executable code module of a sign can comprise the one or more physics or the logical block of computer instruction, and for instance, it can be built as object, process or function.However, the executable code of institute's identification module need not to be physically located in together, but can comprise the different instruction on being stored in the coordination not, when combining on these command logics, and its composition module and realize the regulation purpose of this module.
In fact, executable code module can be individual instructions or many instructions, and even can be distributed on a plurality of different code segments, be distributed in the middle of the distinct program, and cross over a plurality of memory devices and distribute.Similarly, operating data can be identified in module, and can realize and be organized in the data structure of any suitable type according to any suitable form.Described operating data can be used as the individual data collection and is collected, and perhaps can be distributed on the diverse location (to be included on the different storage device), and can only be present on system or the network as electronic signal at least in part.
When module can utilize software to realize, consider the level of existing hardware technology, so can be with the module of software realization, do not considering under the condition of cost, those skilled in the art can build the corresponding hardware circuit and realize corresponding function, and described hardware circuit comprises conventional ultra-large integrated (VLSI) circuit or gate array and the existing semiconductor such as logic chip, transistor or other discrete element.Module can also be used programmable hardware device, such as realizations such as field programmable gate array, programmable logic array, programmable logic devices.
In each method embodiment of the present invention; the sequence number of described each step can not be used to limit the sequencing of each step; for those of ordinary skills, under the prerequisite of not paying creative work, the priority of each step is changed also within protection scope of the present invention.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a method of amplifying the video telephone image is applied in the video-phone system, and described video-phone system comprises first terminal that sends visual image and second terminal that receives visual image, it is characterized in that described method comprises:
Described first terminal receives the enlarged image message that described second terminal sends, carry in the described enlarged image message remain magnification region positional information and treat multiplication factor;
Described first terminal is obtained original image, and intercepts out from described original image according to the described positional information for the treatment of magnification region and to treat magnification region;
Described first terminal is carried out image encoding according to described multiplication factor to the described magnification region for the treatment of, the described magnification region for the treatment of is encoded to key frame, and described key frame is sent to described second terminal.
2. the method for amplification video telephone image according to claim 1 is characterized in that, the described positional information of magnification region for the treatment of comprises:
Treat the cornerwise starting point coordinate and the end point coordinate of magnification region; Or
Treat the center point coordinate and the radius of magnification region; Or
Treat the relative position of magnification region in full size image.
3. the method for amplification video telephone image according to claim 1 is characterized in that, and is described and described key frame is sent to also comprises after described second terminal:
Described first terminal receives that described second terminal sends stops enlarged image message;
Described first terminal is obtained original image, adopts first compression ratio that described original image is carried out full-scale image encoding, and the Frame that coding obtains is sent to described second terminal.
4. the method for amplification video telephone image according to claim 3 is characterized in that, describedly treats that with described magnification region is encoded to key frame and comprises:
Described first terminal adopts second compression ratio that the described magnification region for the treatment of is encoded, and described second compression ratio is less than described first compression ratio.
5. a terminal is applied in the video-phone system, is used to send visual image, and described video-phone system also comprises the distant terminal that receives visual image, it is characterized in that, described terminal comprises:
The message sink module is used to receive the enlarged image message that distant terminal sends, carry in the described enlarged image message remain magnification region positional information and treat multiplication factor;
Interception module is used to obtain original image, and intercepts out from described original image according to the described positional information for the treatment of magnification region and to treat magnification region;
The coding sending module is used for according to described multiplication factor the described magnification region for the treatment of being carried out image encoding, the described magnification region for the treatment of is encoded to key frame, and described key frame is sent to described distant terminal.
6. terminal according to claim 5 is characterized in that,
Described message sink module is used to also to receive that described distant terminal sends stops enlarged image message;
Described coding sending module also is used to adopt first compression ratio that the original image that described interception module obtains is carried out full-scale image encoding, and the Frame that coding obtains is sent to described distant terminal.
7. terminal according to claim 6 is characterized in that, described coding sending module specifically is used to adopt second compression ratio that the described magnification region for the treatment of is encoded, and described second compression ratio is less than described first compression ratio.
8. a method of amplifying the video telephone image is applied in the video-phone system, and described video-phone system comprises first terminal that sends visual image and second terminal that receives visual image, it is characterized in that described method comprises:
Described second terminal receives the positional information for the treatment of magnification region of user's input and treats multiplication factor;
Described second terminal sends enlarged image message to described first terminal, carries in the described enlarged image message to remain the positional information and the multiplication factor of magnification region;
Described second terminal receives the key frame that described first terminal sends, described key frame be described first terminal from the original image that obtains, intercept out treat magnification region after, according to described multiplication factor the described magnification region for the treatment of is carried out the Frame that image encoding obtains.
9. a terminal is applied in the video-phone system, is used to receive visual image, and described video-phone system also comprises the distant terminal that sends visual image, it is characterized in that, described terminal comprises:
Input module is used to receive the positional information for the treatment of magnification region of user's input and treat multiplication factor;
Sending module is used for sending enlarged image message to described distant terminal, carries in the described enlarged image message to remain the positional information and the multiplication factor of magnification region;
The image receiver module, be used to receive the key frame that described distant terminal sends, described key frame be described distant terminal from the original image that obtains, intercept out treat magnification region after, according to described multiplication factor the described magnification region for the treatment of is carried out the Frame that image encoding obtains.
10. video-phone system, described video-phone system comprise first terminal that sends visual image and second terminal that receives visual image, it is characterized in that,
Described first terminal is used to receive the enlarged image message that described second terminal sends, carry in the described enlarged image message remain magnification region positional information and treat multiplication factor, obtain original image, and intercept out from described original image according to the described positional information for the treatment of magnification region and to treat magnification region, according to described multiplication factor the described magnification region for the treatment of is carried out image encoding, the described magnification region for the treatment of is encoded to key frame, and described key frame is sent to described second terminal;
Described second terminal is used to receive the positional information for the treatment of magnification region of user's input and treat multiplication factor, send enlarged image message to described first terminal, carry in the described enlarged image message and remain the positional information and the multiplication factor of magnification region, receive the key frame that described first terminal sends, described key frame be described first terminal from the original image that obtains, intercept out treat magnification region after, according to described multiplication factor the described magnification region for the treatment of is carried out the Frame that image encoding obtains.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110210891 CN102263928A (en) | 2011-07-26 | 2011-07-26 | Video telephone image magnification method, terminal and video telephone system |
| PCT/CN2011/080856 WO2013013449A1 (en) | 2011-07-26 | 2011-10-17 | Video telephone image magnification method, terminal and video telephone system |
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| CN 201110210891 CN102263928A (en) | 2011-07-26 | 2011-07-26 | Video telephone image magnification method, terminal and video telephone system |
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| CN102263928A true CN102263928A (en) | 2011-11-30 |
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