CN102025993A - Video transmission method and system based on H.264 - Google Patents
Video transmission method and system based on H.264 Download PDFInfo
- Publication number
- CN102025993A CN102025993A CN2010105940496A CN201010594049A CN102025993A CN 102025993 A CN102025993 A CN 102025993A CN 2010105940496 A CN2010105940496 A CN 2010105940496A CN 201010594049 A CN201010594049 A CN 201010594049A CN 102025993 A CN102025993 A CN 102025993A
- Authority
- CN
- China
- Prior art keywords
- video
- error
- receiving terminal
- video data
- error code
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a video transmission method and system based on H.264. The video transmission method comprises the following steps: decoding received coded video data at a receiving end in the process of transmitting the video data from a transmitting end to the receiving end, and carrying out error detection in the decoding process; if the error is detected, generating error code information and feeding the error code information back to the transmitting end, simultaneously using a corresponding error covering algorithm to rebuild an image according to error types; and at the transmitting end, coding the collected video data according to a predetermined mode, and regulating the coding mode of a macrolbock at the corresponding position of the current frame to an intraframecoding mode according to the error code information when receiving the error code information; and then transmitting the coded video data to the receiving end. By the video transmission method and system, the serious proliferation of video error can be inhibited to a certain degree, and the restorability of the video error is improved so that the receiving end can obtain better image effect.
Description
Technical field
The present invention relates to the multi-media communication technical field, relate in particular to a kind of based on the video transmission method of video encoding standard H.264.
Background technology
Along with the fast development of third generation digital radio mobile communications network and MMS (Multimedia Message Service), 3G multi-media communication technology has become the new focus that industry is paid close attention to.The advantage of 3G mobile communication network is exactly that faster data transmission rate and wideer network bands can be provided, and this just provides support for bigger data volume transport service.
Current, the 3G mobile communication network not only needs processed voice information, also needs to handle multiple media formats such as image, music, video flowing, and multiple information services such as web page browsing, videoconference, ecommerce are provided.Yet, video communication service wherein still is a kind of challenge to 3G network, this mainly is because wireless network is a kind of fallibility network, be subjected to multiple condition effect such as multipath interference, shadow fading easily, cause the RTP bag in the video transmission stream to lose in a large number, therefore for the 3G video communication service, fault-toleranr technique is a new technique that can not be ignored.
At present, video calling technology based on the 3G intelligent mobile terminal also generally is faced with problems such as video image is fuzzy, mosaic, video playback is discontinuous, video playback is delayed time, the video data volume is big, video-losing, and these defectives are all had higher requirement to video coding and fault-toleranr technique.At present, employing all is some fault tolerant mechanisms of video encoding standard self H.264.H.264 video encoding standard provides many tolerant fail algorithms, can solve the video error tolerance transmission of easy mistake channel to a certain extent.To simply introduce H.264 below, the message of video encoding standard constitutes and transmit mechanism: H.264 standard adopts layered model, defined video coding layer (Video Coding Layer, be called for short VCL) and network abstract layer (Network Abstraction Layer, be called for short NAL), wherein VCL is responsible for video frequency content expressing efficiently, it is designed to as far as possible independently network, and NAL is responsible for pack encapsulation and transmit by specified network of coded message.H.264 two kinds of new frame type of codings have also been defined in, it is the switching that SP frame and SI frame are finished various flows, can switch between the video flowing of different code checks adaptively according to the concrete condition of transmission network and portable terminal, this has all improved the adaptability of video flowing to 3G network to a certain extent.Main method is: the difference to the importance of the video data behind the coding in utilizing H.264 adopts different transmission meanss, and wherein important information (is video heads information, comprises video sequence parameter collection, picture parameter set and other additional informations; Video sequence collection wherein is in order to provide the relevant information of video sequence, picture parameter set is in order to provide the relevant information of every two field picture of forming video sequence, as coded system information etc.) by the ICP/IP protocol channel transfer, other information are by the Real-time Transport Protocol channel transfer.Because the video heads information required key message that is receiving terminal when decoding, can not get correct video heads information, decoder is to have no idea to decode correct video data, so at first by reliable ICP/IP protocol passage header is sent to receiving terminal when transmission.At present, video transmission model under the mistake channel is shown in Fig. 1, the decoder reconstructs value Yn of receiving terminal is a stochastic variable based on X n, and Yn has introduced following several possible distortions with respect to X n: the quantizing distortion of coding side, since the code error shielding distortion that channel distortion is introduced and because reference frame is made mistakes the error code of introducing spreads distortion; When the frame of video of receiving when decoder is made mistakes, decoder will adopt code error shielding technology to be reconstructed to the part of makeing mistakes, but the frame that reconstruct obtains is compared with the primitive frame of encoder losing of video information arranged certainly, if the lost part of information is used as the reference frame information of motion compensation valuation, will cause the error code diffusion, the reconstructed image quality of the frame of makeing mistakes is descended, but also can cause expendable loss, make that image is more and more unclear to subsequent frame.
Summary of the invention
The objective of the invention is to error code diffusion problem, provide a kind of, stop the error code diffusion to a certain extent, improve the picture quality that decoding end is rebuild based on the video transmission method of standard H.264 at prior art.
The embodiment of the invention is achieved in that a kind of video transmission method based on H.264, at transmitting terminal in the process of receiving terminal transmitting video data,
At receiving terminal, received encoded video data is decoded and carry out error detection in decode procedure, wrong as if detecting, then generate error code information and feed back to transmitting terminal, adopt corresponding error to cover algorithm according to type of error simultaneously and carry out image reconstruction;
At transmitting terminal, the video data of being gathered is encoded according to predetermined manner, and according to this error code information the macroblock encoding mode of the relevant position of present frame is adjusted into intraframe coding method when receiving error code information, the video data after will encoding afterwards sends to receiving terminal.
Wherein, at transmitting terminal in the process of receiving terminal transmitting video data, described transmitting terminal passes through the ICP/IP protocol passage earlier to receiving terminal transmission of video header, transmits remaining video data by the Real-time Transport Protocol passage to receiving terminal again after receiving the affirmation information that receiving terminal returns.
Wherein, described video data is made up of video sequence, and video sequence is made up of piece of video, and piece of video is made up of macro block again; The process of described error detection further comprises:
Earlier video sequence parameter collection and video image parameter collection are detected.
Carry out the grammer and the content detection of video chip level again, judge whether conformance with standard and whether be the parameter that this receiving terminal is supported of key message in the current video sheet and syntactic element.
Carry out the detection of macro-block level content at last, judge wherein information errors and information dropout situation.
Wherein, described receiving terminal is given transmitting terminal by described ICP/IP protocol passage with the error code message transmission.
Wherein, described error code information comprises the positional information and the type of error information of the macro block that makes a mistake.
Wherein, described method also comprises: described transmitting terminal, the number of macroblocks that statistics wherein makes a mistake when receiving error code information if the number of macroblocks that makes a mistake surpasses predetermined threshold value, then is encoded to present frame and forces the I frame.
A kind of Video transmission system based on H.264 comprises transmitting terminal and receiving terminal,
Described transmitting terminal is used for to the encoded video data of receiving terminal transmission, and according to the error code information of receiving terminal feedback the macroblock encoding mode of relevant position in the present frame is adjusted into intraframe coding method in transmission course;
Described receiving terminal, be used for the video data that the receiving end/sending end transmission comes, and received video data is decoded and carried out error detection at decode procedure, if detect wrong, then generate error code information and feed back to transmitting terminal, adopt corresponding error to cover algorithm according to type of error simultaneously and carry out image reconstruction.
The embodiment of the invention compared with prior art, beneficial effect is:
The positional information of the macro block that receiving terminal will be made mistakes among the present invention feeds back to transmitting terminal, transmitting terminal and then the macro block of correspondence position in the present frame adopted the intraframe coding method coding, like this, because the inter-coded macroblocks that adopts intraframe coding to obtain does not rely on other frames and can independently decode, so can stop the serious diffusion of video error to a certain extent, improve the video error restorability, made receiving terminal can obtain the better pictures effect.
Description of drawings
Fig. 1 is the video Data Transmission model under the mistake channel in the prior art.
Fig. 2 is the video Data Transmission process schematic diagram that the embodiment of the invention provides.
Fig. 3 is the processing method schematic diagram of the transmitting terminal that provides of the embodiment of the invention.
Fig. 4 is the processing method schematic diagram of the receiving terminal that provides of the embodiment of the invention.
Embodiment
Core concept of the present invention is: receiving terminal carries out error detection to it when receiving video data, the positional information of the macro block that will make mistakes feeds back to transmitting terminal, transmitting terminal adopts the intraframe coding method coding to the macro block of correspondence position in the present frame in view of the above, macro block to other positions adopts the normal mode coding, to strengthen the fault-tolerance of image, make image after obliterated data occurring, still can see image clearly, and mistake can not spread.
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 2, comprise transmitting terminal and receiving terminal based on H.264 Video transmission system among the present invention, the transmission course of its video data is: before transmitting video data, transmitting terminal and receiving terminal are set up an ICP/IP protocol passage earlier, and the video heads information after transmitting terminal will be encoded is given receiving terminal by the ICP/IP protocol channel transfer; Receiving terminal returns confirmation by the ICP/IP protocol passage to transmitting terminal after successfully receiving video heads information; After receiving the affirmation information of receiving terminal, transmitting terminal and receiving terminal are set up the Real-time Transport Protocol passage, by other encoded video data of this Real-time Transport Protocol channel transfer.
In the transmission course of above-mentioned video data,
(1) at receiving terminal, as shown in Figure 3, receiving terminal is decoded to received compressed video data and is carried out error detection at decode procedure, if detect wrong, then generate error code information and feed back to transmitting terminal, simultaneously according to type of error (as the macro block head make mistakes, type such as macro block (mb) type is made mistakes, the macro block vector is made mistakes, residual error coefficient is made mistakes) adopt corresponding error to cover algorithm (as macro block mode recovery algorithms, motion vector recovery algorithms) to carry out image reconstruction.
The error concealment algorithm can recover error image in spatial domain and time domain respectively, particularly: the one, when the image affected area is intraframe coding, can use spatial domain error concealment technology, it has mainly utilized a two field picture volume inside correlation, estimate the current macro block of losing with the information of the adjacent macroblocks that is correctly decoded, and the macro block that replaces this to lose with this approximate macro block value; The 2nd, when the image affected area is interframe encode, can use time domain error concealment technology, it has mainly utilized the temporal correlation of video sequence, processing procedure is divided into " motion vector estimation " and " compensation substitutes " two stages, at first utilize the motion vector information of reference frame relevant position macro block, estimate the motion vector of losing macro block by certain algorithm, find corresponding macro block value by the motion vector that estimates then, be used for substituting the current macro block of losing, wherein whether the estimation of motion vector correctly is the key of time domain error concealing technique success or not.
Above-mentioned error code information comprises the positional information and the type of error information of the macro block that makes a mistake, by reliable ICP/IP protocol channel transfer.
(2) at transmitting terminal, as shown in Figure 4, transmitting terminal need carry out video data acquiring, coded message analysis and carry out video coding control, code check fluctuation control, the control of sheet division numbers and macro block updating control.
Wherein, video coding: promptly carry out various parameter settings, video data is carried out the normal mode coding.
Code check fluctuation control: the rate control algorithm that adopts macro-block level, accurately control the size of output code flow, when the input video scene is comparatively static, reduce the code stream input rate adaptively, the upper limit fluctuation of restriction code check under the more situation of video scene movable information.
Sheet division numbers control: because H.264 the standard support is divided into a plurality of with a two field picture, each sheet all has the code stream synchronous head, in front code stream lose or wrong situation under play the synchronous effect of code stream, therefore can under the relatively poor situation of network condition, increase the number of sheet, code stream can be easier to be synchronous again from mistake, makes full use of follow-up code stream.
Macro block updating control: this is controlled to be key component of the present invention, determine the macro block position and the number that need refresh in the present frame according to the error code information of receiving terminal feedback, adopt intraframe coding method to encode to these macro blocks, effectively reduce the diffusion of video error; In this control mode, also can if the number of macroblocks that makes a mistake surpasses predetermined threshold value, then present frame be encoded to and force the I frame according to sending wrong number of macroblocks in the error code Information Statistics former frame.
Particularly, in the present embodiment, the decoder of receiving terminal has been introduced error detection and error concealment technology.Error detection is to detect the grammer of current each data segment of code stream and the correctness of content in decode procedure: at first from the video sequence level, relate to network abstract layer, video sequence parameter collection and video image parameter set are detected; Next carry out the grammer and the content detection of video chip level, judge whether conformance with standard and whether be the parameter that the local terminal decoder is supported of key message in the current video sheet and syntactic element; At last emphasis is carried out the detection of macro-block level content, at this moment will detect one by one, and then find information errors and information dropout situation in this code stream the texture information in the code stream, motion vector information, macro block type information etc.Error code information promptly generates according to this error detection result, has wherein write down the error code sign of each macro block, the error code home position 0 of error macro block correspondence, the error code home position 1 of normal macro block correspondence; The size of each macro block all is 16 * 16 in this example, if sub-piece has problem, so whole macro block is promptly made mistakes, its error code home position 0.Error concealment is the estimation and the recovery of the drop-out that causes at error of transmission, adopts corresponding error to cover algorithm according to concrete type of error, improves the quality of decipher reestablishment image.
Particularly, transmitting terminal is when receiving error code information, adjust the macroblock encoding mode of current video data to be sent according to this error code information: if the value of the error code of correspondence position sign position is 1 in the error code information, the macro block of this position is successfully decoded and is not made mistakes in the expression former frame, is sent to receiving terminal after then according to normal mode (i.e. the coded system of original employing) macro block of relevant position in the present frame being encoded; If the value of the error code of correspondence position sign position is 0 in the error code information, the macro block of this position is imperfect or make mistakes after decoding in the expression former frame, then for avoiding wrong diffusion, to adjust the macroblock encoding mode of relevant position in the present frame, be sent to receiving terminal after promptly adopting intraframe coding method coding.
To sum up, use the present invention, can stop the diffusion of video error to a certain extent, improve the picture quality of receiving terminal.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. one kind based on H.264 video transmission method, it is characterized in that, at transmitting terminal in the process of receiving terminal transmitting video data,
At receiving terminal, received encoded video data is decoded and carry out error detection in decode procedure, wrong as if detecting, then generate error code information and feed back to transmitting terminal, adopt corresponding error to cover algorithm according to type of error simultaneously and carry out image reconstruction;
At transmitting terminal, the video data of being gathered is encoded according to predetermined manner, and according to this error code information the macroblock encoding mode of the relevant position of present frame is adjusted into intraframe coding method when receiving error code information, the video data after will encoding afterwards sends to receiving terminal.
2. the video transmission method based on H.264 as claimed in claim 1, it is characterized in that, at transmitting terminal in the process of receiving terminal transmitting video data, described transmitting terminal passes through the ICP/IP protocol passage earlier to receiving terminal transmission of video header, transmits remaining video data by the Real-time Transport Protocol passage to receiving terminal again after receiving the affirmation information that receiving terminal returns.
3. the video transmission method based on H.264 as claimed in claim 2 is characterized in that described video data is made up of video sequence, and video sequence is made up of piece of video, and piece of video is made up of macro block again; The process of described error detection further comprises:
Earlier video sequence parameter collection and video image parameter collection are detected;
Carry out the grammer and the content detection of video chip level again, judge whether conformance with standard and whether be the parameter that this receiving terminal is supported of key message in the current video sheet and syntactic element;
Carry out the detection of macro-block level content at last, judge wherein information errors and information dropout situation.
4. the video transmission method based on H.264 as claimed in claim 2 is characterized in that described receiving terminal is given transmitting terminal by described ICP/IP protocol passage with the error code message transmission.
5. the video transmission method based on H.264 as claimed in claim 1 is characterized in that described error code information comprises the positional information and the type of error information of the macro block that makes a mistake.。
6. the video transmission method based on H.264 as claimed in claim 1 is characterized in that described method also comprises:
Described transmitting terminal, the number of macroblocks that statistics wherein makes a mistake when receiving error code information if the number of macroblocks that makes a mistake surpasses predetermined threshold value, then is encoded to present frame and forces the I frame.
7. one kind based on H.264 Video transmission system, comprises transmitting terminal and receiving terminal, it is characterized in that,
Described transmitting terminal is used for to the encoded video data of receiving terminal transmission, and according to the error code information of receiving terminal feedback the macroblock encoding mode of relevant position in the present frame is adjusted into intraframe coding method in transmission course;
Described receiving terminal, be used for the video data that the receiving end/sending end transmission comes, and received video data is decoded and carried out error detection at decode procedure, if detect wrong, then generate error code information and feed back to transmitting terminal, adopt corresponding error to cover algorithm according to type of error simultaneously and carry out image reconstruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010594049.6A CN102025993B (en) | 2010-12-17 | 2010-12-17 | Video transmission method and system based on H.264 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010594049.6A CN102025993B (en) | 2010-12-17 | 2010-12-17 | Video transmission method and system based on H.264 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102025993A true CN102025993A (en) | 2011-04-20 |
| CN102025993B CN102025993B (en) | 2014-01-08 |
Family
ID=43866761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010594049.6A Active CN102025993B (en) | 2010-12-17 | 2010-12-17 | Video transmission method and system based on H.264 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102025993B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024400A (en) * | 2011-12-19 | 2013-04-03 | 北京捷成世纪科技股份有限公司 | Video compression fault-tolerant transmission method and system based on network |
| CN103200416A (en) * | 2013-04-23 | 2013-07-10 | 华录出版传媒有限公司 | Processing method for encoding and decoding 3D (three dimensional) video |
| CN103813177A (en) * | 2012-11-07 | 2014-05-21 | 辉达公司 | System and method for video decoding |
| CN104202611A (en) * | 2014-09-01 | 2014-12-10 | 赛特斯信息科技股份有限公司 | Method of realizing detection on broken screen defect in video file based on video decoder |
| CN108235150A (en) * | 2018-01-03 | 2018-06-29 | 厦门亿联网络技术股份有限公司 | A kind of realtime graphic self-adaptive recovery system and method for network transmission characteristic close friend |
| CN108600816A (en) * | 2018-05-17 | 2018-09-28 | 上海七牛信息技术有限公司 | A kind of detecting method of media, device and media play system |
| CN108737832A (en) * | 2018-05-28 | 2018-11-02 | 安徽维德工业自动化有限公司 | A kind of video artefacts detecting system and its method based on Video Decoder |
| WO2022141121A1 (en) * | 2020-12-29 | 2022-07-07 | 深圳市大疆创新科技有限公司 | Image transmission method, mobile platform, remote control device, system, and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348645A (en) * | 2000-02-26 | 2002-05-08 | 三星电子株式会社 | Apparatus for transmitting/receiving Bitstream in network and method thereof |
| CN1856112A (en) * | 2005-04-20 | 2006-11-01 | 华为技术有限公司 | Error elimination of compressed video transmission based on H.264 |
| CN1893663A (en) * | 2005-09-02 | 2007-01-10 | 华为技术有限公司 | Transmission protection method of multi-media communication |
| CN101166270A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Multimedia video communication method and system |
| CN101202923A (en) * | 2006-12-15 | 2008-06-18 | 扬智科技股份有限公司 | Method for detecting, recovering and hiding image in decoder |
| CN101527846A (en) * | 2008-12-19 | 2009-09-09 | 无锡亿普得科技有限公司 | H.264 variable bit rate control method based on Matthew effect |
| CN101917627A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Video fault-tolerant coding method based on self-adaptation flexible macro-block order |
-
2010
- 2010-12-17 CN CN201010594049.6A patent/CN102025993B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348645A (en) * | 2000-02-26 | 2002-05-08 | 三星电子株式会社 | Apparatus for transmitting/receiving Bitstream in network and method thereof |
| CN1856112A (en) * | 2005-04-20 | 2006-11-01 | 华为技术有限公司 | Error elimination of compressed video transmission based on H.264 |
| CN1893663A (en) * | 2005-09-02 | 2007-01-10 | 华为技术有限公司 | Transmission protection method of multi-media communication |
| CN101166270A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Multimedia video communication method and system |
| CN101202923A (en) * | 2006-12-15 | 2008-06-18 | 扬智科技股份有限公司 | Method for detecting, recovering and hiding image in decoder |
| CN101527846A (en) * | 2008-12-19 | 2009-09-09 | 无锡亿普得科技有限公司 | H.264 variable bit rate control method based on Matthew effect |
| CN101917627A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Video fault-tolerant coding method based on self-adaptation flexible macro-block order |
Non-Patent Citations (1)
| Title |
|---|
| 赵敬华等: "H.264编码技术在移动卫星通信中的应用", 《数字通信世界》, 1 May 2009 (2009-05-01) * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024400A (en) * | 2011-12-19 | 2013-04-03 | 北京捷成世纪科技股份有限公司 | Video compression fault-tolerant transmission method and system based on network |
| CN103024400B (en) * | 2011-12-19 | 2015-04-29 | 北京捷成世纪科技股份有限公司 | Video compression fault-tolerant transmission method and system based on network |
| CN103813177A (en) * | 2012-11-07 | 2014-05-21 | 辉达公司 | System and method for video decoding |
| CN103200416A (en) * | 2013-04-23 | 2013-07-10 | 华录出版传媒有限公司 | Processing method for encoding and decoding 3D (three dimensional) video |
| CN104202611A (en) * | 2014-09-01 | 2014-12-10 | 赛特斯信息科技股份有限公司 | Method of realizing detection on broken screen defect in video file based on video decoder |
| CN108235150A (en) * | 2018-01-03 | 2018-06-29 | 厦门亿联网络技术股份有限公司 | A kind of realtime graphic self-adaptive recovery system and method for network transmission characteristic close friend |
| WO2019134255A1 (en) * | 2018-01-03 | 2019-07-11 | 厦门亿联网络技术股份有限公司 | Network transmission characteristic friendly real-time image adaptive recovery system and method |
| CN108600816A (en) * | 2018-05-17 | 2018-09-28 | 上海七牛信息技术有限公司 | A kind of detecting method of media, device and media play system |
| CN108737832A (en) * | 2018-05-28 | 2018-11-02 | 安徽维德工业自动化有限公司 | A kind of video artefacts detecting system and its method based on Video Decoder |
| WO2022141121A1 (en) * | 2020-12-29 | 2022-07-07 | 深圳市大疆创新科技有限公司 | Image transmission method, mobile platform, remote control device, system, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102025993B (en) | 2014-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102025993B (en) | Video transmission method and system based on H.264 | |
| CN101796846B (en) | Feedback based scalable video coding | |
| CN1856111B (en) | Video signal coding/decoding method, coder/decoder and related devices | |
| CN101790098B (en) | For optimizing the decoder architecture of mismanage in streamed multimedia | |
| EP2815529B1 (en) | Data packet transmission/reception apparatus and method | |
| CN100459717C (en) | Error elimination of compressed video transmission based on H.264 | |
| CN103200400B (en) | A kind of decoding method, codec and the electronic equipment of image layer and sliced layer | |
| CN106911936A (en) | Dynamic video flowing picture covering method | |
| KR20070001134A (en) | Method and apparatus for handling video communication errors | |
| GB2386275A (en) | Error resiliency within the enhancement layers of scalable video transmissions | |
| CN103024400B (en) | Video compression fault-tolerant transmission method and system based on network | |
| TW200427335A (en) | Picture coding method | |
| CN101686391A (en) | Video coding/decoding method and device as well as video playing method, device and system | |
| CN103873812B (en) | Self-adaptation resolution ratio H.264 video coding method of dispatching desk of broadband multimedia trunking system | |
| CN106101714B (en) | A kind of and tightly coupled H.264 video information hiding method of compression encoding process | |
| CN101207813A (en) | Method and system for encoding and decoding video sequence | |
| CN102026001B (en) | Method for evaluating importance of video frame based on motion information | |
| CN103139571A (en) | Video fault-tolerant error-resisting method based on combination of forward error correction (FEC) and WZ encoding and decoding | |
| CN1984332B (en) | Method and system for encoding data and image | |
| CN111935485A (en) | RS code forward error correction method and device | |
| CN102223544B (en) | Method for processing error after detecting error in H264 video stream | |
| EP1961236A2 (en) | Method and apparatus for video error concealment using reference frame selection rules | |
| CN101257635A (en) | Human face detection-based video compression fault tolerant method and encoding and decoding method | |
| CN102378012A (en) | Data hiding-based H.264 video transmission error code recovery method | |
| CN103916714A (en) | Packet-loss resistance preprocessing and recovery method for wireless network video stream |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |