CN101431673B - Video communication system and method - Google Patents
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- CN101431673B CN101431673B CN 200810178934 CN200810178934A CN101431673B CN 101431673 B CN101431673 B CN 101431673B CN 200810178934 CN200810178934 CN 200810178934 CN 200810178934 A CN200810178934 A CN 200810178934A CN 101431673 B CN101431673 B CN 101431673B
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Abstract
The invention relates to a computer graphics technical field which provides a video communication system and a method thereof. The system is used for realizing video transmission between a first terminal and a second terminal, the first terminal includes a video encoding module and a data transmission module, the second terminal includes a data transmission module and a video encoding module, the first terminal also includes a control response module connected with the video encoding module and the data transmission module respectively, the first terminal obtains an adjusting parameter transmitted by the second terminal and informs the video encoding module encoding to the video image according with the adjusting parameter; the second terminal also includes an adjustable module for capturing user's operation, and transmits the adjustable parameter corresponding to the user's operation to the first terminal. The invention can increase flexibility of adjusting video image for user, therefore, user's individual requirement can be satisfied fully.
Description
Technical field
The present invention relates to the computer graphics techniques field, more particularly, relate to a kind of video communication system and method.
Background technology
Along with the lifting of the universal and network bandwidth of instant messaging, increasing user uses the network instant communication instrument to exchange.JICQ provides multiple exchange way, such as text chat, voice-enabled chat, Video chat etc.The camera Real-time Collection user of Video chat (being video communication) by connecting computer image and surrounding enviroment can be seen communicating pair and each other image have been strengthened the effect of linking up.
The detailed process of video communication is: the video transmitting terminal gathers video image, after encoding with the encoding video pictures transfer of data to the video reception terminal, the video reception terminal is to the encoding video pictures decoding data and show.Yet due to the at present restriction of the network bandwidth and network quality, the definition of the video image by Internet Transmission and fluency are difficult to the degree that reaches simultaneously desirable, and the quality that in most of the cases needs to sacrifice some aspects guarantees quality on the other hand.Simultaneously, because different user requirement to video definition and fluency under different scenes is different, therefore need to regulate definition and the fluency of video.
The method of prior art adjusting video quality is: the user of video reception terminal is by different options, for example, the selection quality is preferential or speed is preferential, preferential or the preferential regulating command of speed of video transmitting terminal response quality, code change parameter according to prior setting is carried out recompile to video image, and the view data after encoding reaches the video reception terminal and shows.Yet the mode of video image being regulated due to prior art is single, and the flexibility of adjusting is relatively poor, therefore can't satisfy user's individual demand.
Therefore need a kind of new video communication system and method, can improve the flexibility of video image being carried out quality adjustment, thereby fully satisfy user's individual demand.
Summary of the invention
The invention provides a kind of video communication system and method, be intended to solve prior art not strong to the flexibility that video image carries out quality adjustment, so that can't satisfy the problem of users ' individualized requirement.
in order to realize goal of the invention, described video communication system is for the transmission of video of realizing between first terminal and the second terminal, described first terminal comprises the video acquisition module that gathers video image, video image is carried out the video encoding module of code conversion, and with the data transmission module of encoding video pictures transfer of data to the second terminal, described the second terminal comprises the data transmission module of receiver, video image coded data, video decode module to the conversion of the encoding video pictures decoding data that receives, and the video display module that shows decoding rear video image,
Described the second terminal also comprises adjustment module, catches user operation, and the adjusting parameter of described user's operational correspondence is sent to described first terminal;
Described first terminal also comprises the control response module that is connected with the video encoding module of described first terminal respectively, obtain the adjusting parameter that described the second terminal sends, and notify described video encoding module according to the coding of described adjusting parameter adjustment collection to video image;
Wherein, described adjusting parameter comprises the quantization parameter of controlling video image clarity and the frame per second of controlling video image smoothness degree; Described first terminal, the second terminal are the client of the special-purpose instant messenger of operation, or for moving the web browser of web chat tool; Described user's operation comprises operating user interface and/or file input; Described file input is by the real control response module of the configuration file of change terminal, be connected with the video encoding module of described the second terminal, obtain the adjusting parameter that described first terminal sends, notify the video encoding module of described the second terminal according to the coding of described adjusting parameter adjustment to video image.
Preferably, described first terminal also can comprise:
Adjustment module is used for catching user's operation of described first terminal, and the adjusting parameter of described user's operational correspondence is sent to described the second terminal;
The video decode module is connected with the data transmission module of described first terminal, to the encoding video pictures decoding data conversion that receives;
Video display module is connected with the video decode module of described first terminal, shows decoded video image.
Described the second terminal also can comprise:
Video encoding module, the video image that collects with described the second terminal carries out code conversion;
The control response module is connected with the video encoding module of described the second terminal, obtains the adjusting parameter that described first terminal sends, and notifies the video encoding module of described the second terminal according to the coding of described adjusting parameter adjustment to video image.
Described method said method comprising the steps of based on the transmission of video between first terminal and the second terminal:
A. described the second capture terminal user operation is sent to described first terminal with the adjusting parameter of described user's operational correspondence;
B. described first terminal obtains the adjusting parameter that described first terminal sends, and according to the coding of described adjusting parameter adjustment to the collection video image;
C. the encoding video pictures transfer of data after described first terminal will be encoded to described the second terminal is decoded and shows;
Wherein, described adjusting parameter comprises the quantization parameter of controlling video image clarity and the frame per second of controlling video image smoothness degree; Described first terminal, the second terminal are the client of the special-purpose instant messenger of operation, or for moving the web browser of web chat tool; Described user's operation comprises operating user interface and/or file input; Described file input realizes by the configuration file of change terminal.
Preferably, described method also can comprise step:
D. described first terminal is caught user operation, and the adjusting parameter of described user's operational correspondence is sent to described the second terminal;
E. described the second terminal is obtained the adjusting parameter that described first terminal sends, according to the coding of described adjusting parameter adjustment to video image;
F. the encoding video pictures transfer of data after described the second terminal will be encoded to described first terminal is decoded and shows.
As from the foregoing, video communication system provided by the invention and method, the user can be regulated corresponding adjusting parameter in terminal and send to another terminal, another terminal is carried out recompile according to regulating parameter to the video image that collects, to facilitate the user definition and the fluency of video image to be regulated in a big way at one, improved the flexibility of video image being carried out quality adjustment, satisfy to greatest extent the requirement of user to video image clarity and fluency, thereby fully satisfied user's individual demand.
Description of drawings
Fig. 1 is the structural representation of video communication system in one of them embodiment of the present invention;
Fig. 2 is the structural representation of video communication system in one of them embodiment of the present invention;
Fig. 3 is the flow chart of video communication method in one of them embodiment of the present invention;
Fig. 4 is the flow chart of video communication method in one of them embodiment of the present invention.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.
Embodiment
In the present invention, catch user's operation by the adjustment module in the second terminal, the adjusting parameter of user's operational correspondence is sent to first terminal, described first terminal obtains the adjusting parameter that the second terminal sends, and notify video encoding module according to the coding of described adjusting parameter adjustment to video image, the video image coding code data after coding transfers to the second terminal again and decodes and show.Like this, improve the flexibility of video and graphic being carried out quality adjustment, thereby fully satisfied user's individual demand.
Fig. 1 shows the system configuration of video communication system in one embodiment of the present of invention, and this system comprises first terminal 100, carries out the second terminal 200 of transmission of video by network with first terminal 100.
Should be noted that in all diagrams of the present invention, the annexation between each equipment is the needs of explaining its information interaction and control procedure for clear, therefore should be considered as annexation in logic, and should not only limit to physical connection.
In addition, need to prove, the communication mode between each functional module can be taked multiple, and protection scope of the present invention should not be defined as the communication mode of certain particular type.Wherein:
The second terminal 200 comprises data transmission module 201, video decode module 202, video display module 203 and adjustment module 204, wherein:
Should be noted that, in this embodiment, first terminal 100 and the second terminal 200 be respectively as transmitting terminal and the receiving terminal of video image, and its typical case can be but be not limited to the client of the special-purpose instant messenger of installation and operation, can be also the web browser of operation web chat tool.
In addition, the transmission of video images between first terminal 100 and the second terminal 200 can be two-way.Be the transmitting terminal that first terminal 100 both can be used as video image, also can be used as the receiving terminal of video image; The second terminal 200 both can be used as the receiving terminal of video image, also can be used as the transmitting terminal of video image.
In one embodiment, first terminal 100 and the second terminal 200 are carried out video communication.The video capture device (for example camera) of access computer is housed at first terminal 100, collects video image by video acquisition module 104, this video image comprises user's image and surrounding environment.102 pairs of vedio datas that collect of video encoding module carry out code conversion, and the redundant information (comprising spatial domain redundant information and time domain redundant information) that is about in vedio data is removed.Going the spatial domain redundant information can use intraframe coding technology and entropy coding, go the time domain redundant information can use inter-frame coding, is prior art about video coding technique, does not repeat them here.
Video image coding code data after encoding is sent to the second terminal 200 by data transmission module 101, the data transmission module 201 of the second terminal 200 receives these data, the encoding video pictures decoding data conversion that 202 pairs of video decode modules receive, final video display module 203 display video images.
In one embodiment, the user of the second terminal 200 can regulate the video image that receives by modes such as interface operation or file inputs.In one embodiment, operating user interface can be pull bar, option etc., and the file input can realize by the configuration file of change terminal.
When utilizing pull bar to regulate, the two ends, left and right of pull bar can represent respectively maximum definition and maximum fluency, coding parameter corresponding to the residing diverse location of pull bar.When the user stirs pull bar left, increase the quantization parameter of coding, reduce the video image number (being frame per second) of transmission in the unit interval, control video image and become more clear; Otherwise, when the user stirs pull bar to the right, reduce the quantization parameter of encoding, increase frame per second, control video image and become more smooth.
In one embodiment, suppose that the current network bandwidth is 200Kbps, if the user needs definition to greatest extent, wish that namely the network bandwidth satisfies the definition requirement to greatest extent, can toggle it to high order end with pull bar.In a preferred embodiment, its corresponding every frame 200Kb coding, per second is only compiled the coding parameter of 1 frame.If the user needs fluency to greatest extent, wish that namely the network bandwidth satisfies the fluency requirement to greatest extent, can toggle it to low order end with pull bar.In a preferred embodiment, it can be encoded by the average 20Kb of corresponding every frame, the coding parameter of per second coding 10 frames.
Fig. 2 shows the system configuration of video communication system in one embodiment of the present of invention, and this embodiment has described first terminal 100 and carried out with the second terminal 200 situation that two-way video is communicated by letter.Wherein:
The second terminal 200 comprises data transmission module 201, video decode module 202, video display module 203, adjustment module 204, video encoding module 205, control response module 206 and video acquisition module 207, wherein:
In one embodiment, first terminal 100 and the second terminal 200 are carried out video communication, at first terminal 100 and the second terminal 200, the video capture device (for example camera) that accesses computer is housed all, collect video image by the video acquisition module 104 of first terminal 100 and the video acquisition module 207 of the second terminal 200, the video communication both sides of first terminal 100 and the second terminal 200 can see the other side's image and surrounding environment etc.
The user of first terminal 100 and the second terminal 200 can regulate the video image that receives.In one embodiment, the user of first terminal 100 can regulate the video image that receives by modes such as operating user interface or file inputs.Operating user interface can be pull bar, option etc., and the file input can realize by the configuration file of change terminal.
The adjustment module 107 of first terminal 100 captures user's operation (being for example the operation of stirring of a pull bar), get according to user's operation and (for example regulate parameter, stir pull bar to the adjusted parameter of diverse location according to the user), and the adjusting parameter of correspondence is sent to the second terminal 200.The data transmission module 201 of the second terminal 200 receives regulates parameter, and will regulate parameter and give control response module 206, control response module 206 notice video encoding module 205 are carried out recompile according to described adjusting parameter (being new coding parameter), video image coding code data after 201 of data transmission modules will be encoded is sent to first terminal 100, by the conversion of decoding of the video decode module 105 of first terminal 100, video display module 106 shows decoded video images.
In another embodiment, the user of the second terminal 200 can regulate the video image that receives by modes such as operating user interface or file inputs.Its process does not repeat them here with embodiment illustrated in fig. 1 identical.
Fig. 3 shows the flow process of video communication method in one embodiment of the present of invention, and the method flow process is based on system configuration shown in Figure 1, and detailed process is as follows:
In step S301, the second terminal 200 is caught user operation, and the adjusting parameter of user's operational correspondence is sent to first terminal 100.
In step S302, first terminal 100 obtains the adjusting parameter that the second terminal sends, and according to the coding of described adjusting parameter adjustment to video image.
In step S303, encoding video pictures transfer of data to the second terminal 200 after first terminal 100 will be encoded is decoded and shows.
In one embodiment, first terminal 100 and the second terminal 200 are carried out video communication.The video capture device (for example camera) of access computer is housed at first terminal 100, video acquisition module 104 by first terminal 100 collects video image, this video image comprises user image and the surrounding environment of first terminal 100,102 pairs of vedio datas that collect of video encoding module carry out code conversion, and the redundant information (comprising spatial domain redundant information and time domain redundant information) that is about in vedio data is removed.Going the spatial domain redundant information can use intraframe coding technology and entropy coding, go the time domain redundant information can use inter-frame coding, is prior art about video coding technique, does not repeat them here.
Video image coding code data after encoding is sent to the second terminal 200 by data transmission module 101, the data transmission module 201 of the second terminal 200 receives these data, the encoding video pictures decoding data conversion that 202 pairs of video decode modules receive, 203 display video images of video display module.
In one embodiment, the user of the second terminal 200 can regulate the video image that receives by modes such as operating user interface or file inputs.In one embodiment, operating user interface can be pull bar, option etc., and the file input can realize by the configuration file of change terminal.
When utilizing pull bar to regulate, the two ends, left and right of pull bar can represent respectively maximum definition and maximum fluency, coding parameter corresponding to the residing diverse location of pull bar.When the user stirs pull bar left, increase the quantization parameter of coding, reduce the video image number (being frame per second) of transmission in the unit interval, control video image and become more clear; Otherwise, when the user stirs pull bar to the right, reduce the quantization parameter of encoding, increase frame per second, control video image and become more smooth.
In one embodiment, suppose that the current network bandwidth is 200Kbps, if the user needs definition to greatest extent, wish that namely the network bandwidth satisfies the definition requirement to greatest extent, can toggle it to high order end with pull bar.In a preferred embodiment, its corresponding every frame 200Kb coding, per second is only compiled the coding parameter of 1 frame.If the user needs fluency to greatest extent, wish that namely the network bandwidth satisfies the fluency requirement to greatest extent, can toggle it to low order end with pull bar.In a preferred embodiment, it can be encoded by the average 20Kb of corresponding every frame, the coding parameter of per second coding 10 frames.
Fig. 4 shows the flow process of video communication method in one embodiment of the present of invention, and the method flow process is based on system configuration shown in Figure 2.In this embodiment, first terminal 100 carries out two-way video with the second terminal 200 and communicates by letter, at first terminal 100 and the second terminal 200, the video capture device (for example camera) that accesses computer is housed all, the user of first terminal 100 and the second terminal 200 can carry out quality adjustment to the video image that receives.
In one embodiment, the user of first terminal 100 carries out quality adjustment to the video image that receives.Detailed process is as follows:
In step S401, first terminal 100 is caught user operation, and the adjusting parameter of user's operational correspondence is sent to the second terminal 200.In one embodiment, the user of first terminal 100 can regulate the video image that receives by modes such as operating user interface or file inputs.Adjustment module 107 captures user's operation (being for example the operation of stirring of a pull bar), get according to user's operation and (for example regulate parameter, stir pull bar to the adjusted parameter of diverse location according to the user), and the adjusting parameter of user's operational correspondence is sent to the second terminal 200.
In step S402, the second terminal 200 is obtained the adjusting parameter that first terminal 100 sends, and according to the coding of described adjusting parameter adjustment to video image.In one embodiment, the data transmission module 201 of the second terminal 200 receives regulates parameter, and will regulate parameter and give control response module 206, control response module 206 notice video encoding module 205 are carried out recompile according to described adjusting parameter (being new coding parameter).
In step S403, encoding video pictures transfer of data to the first terminal 100 after the second terminal 200 will be encoded is decoded and shows.In one embodiment, the data transmission module 201 of the second terminal 200 is sent to first terminal 100 with the video image coding code data after recompile, the data transmission module 101 of first terminal 100 receives this video image coding code data, and the conversion of decoding of the video decode module 105 of transferring to first terminal 100, video display module 105 shows decoded video images.
In another embodiment, the user of the second terminal 200 also can regulate the video image that receives.Its method flow does not repeat them here with embodiment illustrated in fig. 3 identical.
Should be noted that the present invention is typical uses but is not limited to video communication in JICQ, also can use method set forth in the present invention in the video communication of carrying out on other similar web webpages.When carrying out video communication on the web webpage, described first terminal 100 and the second terminal 200 can be web browsers, carry out data interaction by web server.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. video communication system, for the transmission of video of realizing between first terminal and the second terminal, described first terminal comprises the video acquisition module that gathers video image, video image is carried out the video encoding module of code conversion and with the data transmission module of encoding video pictures transfer of data to the second terminal, and described the second terminal comprises the data transmission module of receiver, video image coded data, to the video decode module of the encoding video pictures decoding data conversion that receives and the video display module that shows decoding rear video image; It is characterized in that,
Described the second terminal also comprises adjustment module, catches user operation, and the adjusting parameter of described user's operational correspondence is sent to described first terminal;
Described first terminal also comprises the control response module that is connected with described video encoding module, described control response module is obtained the described adjusting parameter that described the second terminal sends, and notifies described video encoding module according to the coding of described adjusting parameter adjustment to the collection video image;
Wherein, described adjusting parameter comprises the quantization parameter of controlling video image clarity and the frame per second of controlling video image smoothness degree;
Described first terminal, the second terminal are the client of the special-purpose instant messenger of operation, or for moving the web browser of web chat tool;
Described user's operation comprises operating user interface and/or file input; Described file input realizes by the configuration file of change terminal.
2. video communication system according to claim 1, is characterized in that, described first terminal also comprises:
Adjustment module is caught the user operation of described first terminal, and the adjusting parameter of described user's operational correspondence is sent to described the second terminal;
The video decode module is connected with the data transmission module of described first terminal, to the encoding video pictures decoding data conversion that receives;
Video display module is connected with the video decode module of described first terminal, shows decoded video image.
3. video communication system according to claim 2, is characterized in that, described the second terminal also comprises:
Video acquisition module gathers video image;
Video encoding module is connected with described video acquisition module, and the video image that collects is carried out code conversion;
The control response module is connected with the video encoding module of described the second terminal, obtains the adjusting parameter that described first terminal sends, and notifies the video encoding module of described the second terminal according to the coding of described adjusting parameter adjustment to video image.
4. video communication method, described method is characterized in that based on the transmission of video between first terminal and the second terminal, said method comprising the steps of:
A. described the second capture terminal user operation is sent to described first terminal with the adjusting parameter of described user's operational correspondence;
B. described first terminal obtains the adjusting parameter that described the second terminal sends, and according to the coding of described adjusting parameter adjustment to the collection video image;
C. the encoding video pictures transfer of data after described first terminal will be encoded to described the second terminal is decoded and shows;
Wherein, described adjusting parameter comprises the quantization parameter of controlling video image clarity and the frame per second of controlling video image smoothness degree;
Described first terminal, the second terminal are the client of the special-purpose instant messenger of operation, or for moving the web browser of web chat tool;
Described user's operation comprises operating user interface and/or file input; Described file input realizes by the configuration file of change terminal.
5. video communication method according to claim 4, is characterized in that, described method also comprises step:
D. described first terminal is caught user operation, and the adjusting parameter of described user's operational correspondence is sent to described the second terminal;
E. described the second terminal is obtained the adjusting parameter that described first terminal sends, according to the coding of described adjusting parameter adjustment to video image;
F. the encoding video pictures transfer of data after described the second terminal will be encoded to described first terminal is decoded and shows.
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| CN102377730A (en) * | 2010-08-11 | 2012-03-14 | 中国电信股份有限公司 | Audio/video signal processing method and mobile terminal |
| CN103036849A (en) * | 2011-09-30 | 2013-04-10 | 深圳市汇川控制技术有限公司 | Intelligence equipment communication system and method of Internet of things |
| CN103096011B (en) * | 2011-11-08 | 2016-09-28 | 中国电信股份有限公司 | Video communication machinery of consultation, system and video terminal |
| CN103595978B (en) * | 2012-08-16 | 2017-06-16 | 中国电信股份有限公司 | Method and system for consulting code distinguishability in video communication |
| CN103442202B (en) * | 2013-08-22 | 2017-09-26 | 北京智谷睿拓技术服务有限公司 | Video communication method and device |
| JP6378507B2 (en) * | 2014-03-14 | 2018-08-22 | キヤノン株式会社 | Information processing apparatus and control method thereof |
| CN105472296B (en) * | 2014-09-09 | 2019-02-05 | 联想(北京)有限公司 | Real-time method of calibration and device |
| CN105657422A (en) * | 2016-01-21 | 2016-06-08 | 航天恒星科技有限公司 | Multi-scene image compression processing method and system |
| CN108229391B (en) | 2018-01-02 | 2021-12-24 | 京东方科技集团股份有限公司 | Gesture recognition device, server thereof, gesture recognition system and gesture recognition method |
| CN110312057B (en) | 2018-03-27 | 2021-01-29 | 华为技术有限公司 | Intelligent video processing device |
| CN111416939A (en) * | 2020-03-30 | 2020-07-14 | 咪咕视讯科技有限公司 | Video processing method, video processing equipment and computer readable storage medium |
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