CN101155311A - Video code stream error detecting and processing method in video communication - Google Patents
Video code stream error detecting and processing method in video communication Download PDFInfo
- Publication number
- CN101155311A CN101155311A CN 200610062855 CN200610062855A CN101155311A CN 101155311 A CN101155311 A CN 101155311A CN 200610062855 CN200610062855 CN 200610062855 CN 200610062855 A CN200610062855 A CN 200610062855A CN 101155311 A CN101155311 A CN 101155311A
- Authority
- CN
- China
- Prior art keywords
- video
- error
- image
- data
- information
- 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
Landscapes
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
A method for detecting and processing error of video code flow in video communication, to establish index between transmission data identifier and corresponding encoding image information for encoding code flow; to detect the integrality of transmission data identifier on network transmission node, if detecting losing data, then to transmit the corresponding error data identifier to video encoding end through feedback channel; the video encoding end searches the corresponding image encoding information according to the transmission data identifier received from the feedback channel; the encoding end implements encoding with error or transmits the data again based on the corresponding image encoding information. The present invention can find error within a small feedback time delay, and implement error recover processing to the error video code flow, so as to recover the damaged image quality of the video encoding end with maximal speed, also the present invention has very strong anti-jamming and recover capability to video transmission error code as well as package-losing.
Description
Technical field
The invention belongs to image information transmission and process field, be specifically related to the video code flow error detection.
Background technology
Along with the development of wired broadband network and wireless network and the driving of user's request, multimedia technology has obtained increasing concern with relevant application, is considered to one of mainstream applications of following express network.Multimedia application, especially Video Applications are used as WWW, E-mail etc. with respect to the tradition of Internet, and it requires tighter to real-time, bigger to the demand of bandwidth.Owing to adopted the coding techniques of high compression rate in the Video Applications mostly, its requirement to transmission error code is particularly harsh, but wired or wireless network does not provide the QoS (Quality ofServerices) of transmission to guarantee, therefore improve Video Applications is the research focus of field of multimedia communication to the anti-interference and recovery capability of transmission error code always.
The anti-mistake processing of a kind of effective video is exactly to adjust the video coding strategy according to the situation of network channel.When network condition was relatively poor, for example channel bit error rate or packet loss were bigger, can increase the redundant data in the cataloged procedure, perhaps taked the better but lower video coding strategy of code efficiency of fault freedom; When network condition was better, for example channel bit error rate or packet loss were lower, can reduce the redundant data amount in the cataloged procedure, perhaps taked higher but the video coding strategy that fault freedom is relatively poor of code efficiency.
A key character of the anti-mistake method of this video is the feedback information that need obtain network condition or decoding end decoded picture state, adjusts coding strategy according to feedback information then.But in actual communication systems, there is time delay to coding side from the feedback decoding state information of decoder.If time delay is bigger, when coding side received error feedback information, error image caused tangible visual experience to descend in the decoder end diffusion long period to the user.And in this case, obvious decline can take place in the fault-tolerant processing ability of coding side.
Be illustrated in figure 1 as typical wireless video communication system, be by wireless connections transmission data between terminal and the BTS/BSC/RNC, connection between the BTS/BSC/RNC then is by wired connection, comprises core net or flexible exchanging network, and the apparatus for network node such as media gateway on the core net.Because existing cable network or wireless network all can't guarantee service quality, when carrying out transfer of data, data can be lost, and therefore can't guarantee that receiving terminal correctly receives the data of transmitting terminal.The reason that causes receiving terminal can't receive correct data has two aspects, and the one, physical channel makes a mistake, and data are impaired in transmission course.In general wireless network environment issues the biological probability of managing channel error much larger than cable network environment, and in the typical radio video communication system as shown in Figure 1, A and B two places are positions of the easiest generation loss of data.The 2nd, the loss of data that channel congestion causes, when mass data will send to far-end by network at short notice, limited bandwidth caused data correctly to send.
In traditional video error detection and error recovery method, only after receiving video codeword data stream, receiving terminal could find mistake, then error message is sent to transmitting terminal by feedback channel, take corresponding fault-tolerant processing measure at transmitting terminal.It is bigger that the shortcoming of this error detection and processing method is that the performance of fault-tolerant processing measure is subjected to the influence of network-feedback time delay, when feedback delay hour, fault-tolerance processing method is simple, and can very fast error message being recovered at receiving terminal; When feedback delay is big, the fault-tolerance processing method complexity, and need could recovering of long period to error message at receiving terminal.
As shown in Figure 2, in traditional video code flow error detection and processing method, terminal 1 is carried out image encoding, elapsed time T
1Arrive BTS/BSC/RNC1, in core net/NGN, transmit elapsed time T then
2Arrive BTS/BSC/RNC2, last elapsed time T
3The encoded video code stream is sent to terminal 2.Therefore video code flow from the time that terminal 1 sends to terminal 2 be T=T
1+ T
2+ T
3When loss of data takes place in video codeword data stream in transport process, for example generation channel error or channel congestion cause video code flow to make mistakes in the transport process of terminal 1 to BTS/BSC/RNC1, not carrying out data integrity on the apparatus for network node of centre detects, have only to terminal 2 just detect the video code flow mistake when carrying out video decode, passed through T=T this moment
1+ T
2+ T
3Time.Terminal 2 is sent to terminal 1 again through identical channel transmission by feedback channel with error message with detected mistake then.For convenience's sake, suppose that the path of feedback channel is identical with the channel path and the condition of transmission data with condition, so feedback error information experiences T=T again
1+ T
2+ T
3Time.
In this case, from video codeword data stream 1 pair of error message of terminal time that needs that responds of making a mistake be 2 * (T
1+ T
2+ T
3).Terminal 2 receives through the video code flow after the fault-tolerant processing, and error image is recovered to handle, and final is 3 * (T constantly
1+ T
2+ T
3).
Summary of the invention
Technical problem to be solved by this invention be in the video communication process because loss of data or the impaired decoded image quality decline problem that causes that channel error and channel congestion cause, video code flow error-detecting method in a kind of video communication process is provided, can fast detecting loss of data in the transmission course, thereby can manage in short feedback delay, to carry out mistake recovery.
Video code flow error detection and processing method in a kind of video communication of the present invention may further comprise the steps:
The first step is set up the index that sends between Data Identification number and the corresponding codes image information to the code stream of encoding;
Second step detect to send the integrality of Data Identification number on transport network node, find to have loss of data, and the misdata identification number of correspondence is delivered to the video coding end by feedback channel;
In the 3rd step, the video coding end retrieves corresponding image coding information according to the transmission Data Identification that receives from feedback channel number;
In the 4th step, coding side is according to the image coding information of the correspondence that retrieves, takes fault-tolerant encoding or error data is retransmitted.
Transmission Data Identification in the above-mentioned first step number can be the sequence number that coding back image data information sends, and in Real-time Transport Protocol, sending Data Identification number is RTP bag sequence number; In ICP/IP protocol, sending Data Identification number is IP bag sequence number; In agreement H.324M, sending Data Identification number is the Frame sequence number.Coded image information is coded image frame information and/or coding region positional information; Encoded image frame may be the sequence number of a frame or multiple image; The coding region position is image block position number or image pixel position number.
The integrality that described detection sends Data Identification number is whether detect Data Identification number continuous.
Transport network node in described second step is base station transceiver/base station controller/radio network controller, media gateway or server.
The present invention detects on different network nodes or the information of monitoring reception video packets of data, judges whether to take place error in data, and handles accordingly the misdata package informatin is fed back to transmitting terminal.This error-detecting method can be found mistake in less feedback delay, and the video code flow of makeing mistakes is carried out mistake recover to handle, thereby the damaged image quality with the fastest speed recovery video decode end has very strong antijamming capability and recovery capability to video transmission error code and video transmission packet loss.
Description of drawings
Fig. 1 is typical wireless video communication system figure;
Fig. 2 is error detection of the prior art and processing method figure;
Fig. 3 is one embodiment of the present invention schematic diagram;
Fig. 4 is the another embodiment of the invention schematic diagram.
Embodiment
The present invention proposes a kind of quick error detection and processing method based on data directory.
As Fig. 3 and Fig. 4, when terminal 1 is encoded, set up the index between data transmission Bale No. and the coded image information.When carrying out two field picture coding, subregion on the image or Zone Full are encoded into a packet, then this packet are sent to receiving terminal.There is corresponding relation in this packet with the frame number of image and the corresponding coding region in the image.When setting up data and send between Bale No. and the coded image information index, sending Bale No. can be RTP Bale No., data frame number, and perhaps other can calculate the coded message of RTP Bale No. and data frame number.For convenience, this specification back is that example represents to send Data Identification number with RTP bag sequence number, but is not limited to RTP bag sequence number.Coded image information comprises image frame number and corresponding macro block position information, and perhaps other can calculate the coded message of image frame number or macro block position.For convenience, this specification back is all with coded image frame number and macro block position presentation code image information, but is not limited to coded image frame number and macro block position.
In the process that data transmit, carry out the detection of RTP bag sequence number, judge whether to take place loss of data.If loss of data takes place, the packet numbers that will lose or data frame number are sent to coding side by feedback channel.The position of detecting packet numbers or data frame number can be BTS/BSC/RNC1, BTS/BSC/RNC2, media gateway, server or other apparatus for network node.Whether correct method is to judge whether RTP bag sequence number is continuous to a kind of common detection RTP bag sequence number, if the RTP packet loss of the discontinuous sequence number correspondence of discontinuous expression.Whether correct method is varied to detect RTP bag sequence number, is that to number in order be to describe with the RTP bag only at this, but does not limit to and this method.
Below Fig. 3 and two kinds of execution modes shown in Figure 4 are described.
As Fig. 3:
1,1 pair of image of terminal is encoded, and sets up the index between RTP bag sequence number and coded image frame number and the macro block position.What send from terminal 1 at this moment, is correct video code flow.Suppose that be 0 constantly this moment.
2, when the generation channel error between terminal 1 and the BTS/BSC/RNC1 or channel congestion cause loss of data, through T
1After time, can detect the incorrect of RTP bag sequence number in the BTS/BSC/RNC1 position.Be T constantly this moment
1
3, the erroneous video code stream continues to send to terminal 2.The video code flow of 2 pairs of receptions of terminal is decoded, and mistake appears in decoded picture.Be T constantly this moment
1+ T
2+ T
3
4, if the path of hypothesis feedback channel is identical with the channel path and the condition of transmission data with condition, incorrect RTP bag sequence number is sent to terminal 1 by feedback channel to be needed through T
1Time.Terminal 1 is according to finding corresponding codes image frame number and macro block position information in the index between RTP bag sequence number and coded image frame number and the macro block position.Carry out fault-tolerant encoding according to the corresponding codes image information then.Fault-tolerant coding method includes but not limited to technology such as reference frame selection, error tracking or frame inner updating.Be 2 * T constantly this moment
1
5, terminal 1 sends to terminal 2 with the video code flow behind the fault-tolerant encoding, and the decoder of terminal 2 carries out video decode, and error image is resumed.Be 2 * T constantly this moment
1+ T
1+ T
2+ T
3
As Fig. 4:
1,1 pair of image of terminal is encoded, and sets up the index between RTP bag sequence number and coded image frame number and the macro block position.What send from terminal 1 at this moment, is correct video code flow.Suppose that be 0 constantly this moment.
2, when the generation channel error between terminal 1 and the BTS/BSC/RNC1 or channel congestion cause loss of data, through T
1After time, can detect the incorrect of RTP bag sequence number in the BTS/BSC/RNC1 position.Be T constantly this moment
1
3, the erroneous video code stream does not send to terminal 2.Terminal 2 can't be decoded by the receiver, video code stream, and the video decode picture is frozen.Be T constantly this moment
1+ T
2+ T
3
4, if the path of hypothesis feedback channel is identical with the channel path and the condition of transmission data with condition, incorrect RTP bag sequence number is sent to terminal 1 by feedback channel to be needed through T
1Time.Terminal 1 is according to finding corresponding codes image frame number and macro block position information in the index between RTP bag sequence number and coded image frame number and the macro block position.Carry out fault-tolerant encoding or data retransmission according to the corresponding codes image information then.Fault-tolerant coding method includes but not limited to technology such as reference frame selection, error tracking or frame inner updating.Be 2 * T constantly this moment
1
5, terminal 1 will send to terminal 2 through the video code flow of fault-tolerant encoding or re-transmission, and the decoder of terminal 2 carries out video decode, and freeze frame is resumed.Be 2 * T constantly this moment
1+ T
1+ T
2+ T
3
In enforcement of the present invention, the indexing means that set up to send between Data Identification number and the coded image information is varied, a kind of simple transmission Data Identification number with the coded image information index establishing method is, one in the index comprises the RTP Bale No., follows original position by picture frame sequence number and macro block.If in the RTP bag a plurality of picture frames are arranged, then comprise the sequence number of a plurality of picture frames and the original position of macro block.
Claims (5)
1. video code flow error detection and the processing method in the video communication may further comprise the steps:
The first step is set up the index that sends between Data Identification number and the corresponding codes image information to the code stream of encoding;
Second step detect to send the integrality of Data Identification number on transport network node, find to have loss of data, and the misdata identification number of correspondence is delivered to the video coding end by feedback channel;
In the 3rd step, the video coding end retrieves corresponding image coding information according to the transmission Data Identification that receives from feedback channel number;
In the 4th step, coding side is according to the image coding information of the correspondence that retrieves, takes fault-tolerant encoding or error data is retransmitted.
2. video code flow error detection and the processing method in the described video communication of claim 1 is characterized in that, the transmission Data Identification in the described first step number is the sequence number that coding back image data information sends; Coded image information is coded image frame information and/or coding region positional information.
3. video code flow error detection and the processing method in the described video communication of claim 2 is characterized in that, in Real-time Transport Protocol, sending Data Identification number is RTP bag sequence number; In ICP/IP protocol, sending Data Identification number is IP bag sequence number; In agreement H.324M, sending Data Identification number is the Frame sequence number;
Encoded image frame may be the sequence number of a frame or multiple image; The coding region position is image block position number or image pixel position number.
4. video code flow error detection and the processing method in the described video communication of claim 3 is characterized in that, the integrality that described detection sends Data Identification number is whether detect Data Identification number continuous.
5. video code flow error detection and the processing method in the described video communication of the arbitrary claim of claim 1 to 4, it is characterized in that the transport network node in described second step is base station transceiver/base station controller/radio network controller, media gateway or server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610062855 CN101155311B (en) | 2006-09-27 | 2006-09-27 | Video code stream error detecting and processing method in video communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610062855 CN101155311B (en) | 2006-09-27 | 2006-09-27 | Video code stream error detecting and processing method in video communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101155311A true CN101155311A (en) | 2008-04-02 |
| CN101155311B CN101155311B (en) | 2012-09-05 |
Family
ID=39256697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610062855 Active CN101155311B (en) | 2006-09-27 | 2006-09-27 | Video code stream error detecting and processing method in video communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101155311B (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011000200A1 (en) * | 2009-07-03 | 2011-01-06 | 深圳市融创天下科技发展有限公司 | Effective streaming media transmission method |
| WO2011038694A1 (en) * | 2009-09-30 | 2011-04-07 | 华为技术有限公司 | Method, device and network system for transmission processing and sending processing of video data |
| CN102316360A (en) * | 2010-07-09 | 2012-01-11 | 华为终端有限公司 | Video refreshing method, device and system |
| CN102457714A (en) * | 2010-11-01 | 2012-05-16 | 中国移动通信集团上海有限公司 | Method, system and device for transmission of audio-video data acquired by video camera |
| CN101478685B (en) * | 2009-01-16 | 2012-05-23 | 中兴通讯股份有限公司 | Anti-interference network video transmission method and apparatus |
| WO2012094994A1 (en) * | 2011-01-11 | 2012-07-19 | 中兴通讯股份有限公司 | Method and system for realizing lost package retransmission in streaming media |
| CN102611894A (en) * | 2012-03-02 | 2012-07-25 | 华为技术有限公司 | Method, device and system for detecting video transmission packet loss |
| 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 |
| CN103119895A (en) * | 2010-09-16 | 2013-05-22 | 德国电信股份有限公司 | Method of and system for measuring quality of audio and video bit stream transmissions over a transmission chain |
| CN103166995A (en) * | 2011-12-14 | 2013-06-19 | 华为技术有限公司 | Method and device of video transmission |
| CN103378955A (en) * | 2012-04-26 | 2013-10-30 | 华为技术有限公司 | Data retransmission method, data retransmission system, data retransmission device and data acquisition device |
| CN103430538A (en) * | 2011-02-24 | 2013-12-04 | 斯凯普公司 | Feedback based reference frame selection for video coding |
| CN107005714A (en) * | 2016-12-30 | 2017-08-01 | 深圳市大疆创新科技有限公司 | Image processing method and equipment |
| CN107113441A (en) * | 2016-12-30 | 2017-08-29 | 深圳市大疆创新科技有限公司 | Image processing method, device, unmanned vehicle and receiving terminal |
| CN108401263A (en) * | 2017-02-07 | 2018-08-14 | 大唐移动通信设备有限公司 | A kind of appraisal procedure and device of voice quality |
| CN109462857A (en) * | 2017-09-06 | 2019-03-12 | 中兴通讯股份有限公司 | Loss treating method, device, wireless net member and computer readable storage medium |
| US10499060B2 (en) | 2011-01-12 | 2019-12-03 | Canon Kabushiki Kaisha | Video encoding and decoding with improved error resilience |
| CN111066080A (en) * | 2017-09-05 | 2020-04-24 | 德克萨斯仪器股份有限公司 | Vehicle display verification |
| CN111885404A (en) * | 2020-07-16 | 2020-11-03 | RealMe重庆移动通信有限公司 | Data transmission method, device and storage medium |
| US10911750B2 (en) | 2016-12-30 | 2021-02-02 | SZ DJI Technology Co., Ltd. | System and methods for feedback-based data transmission |
| CN112511277A (en) * | 2020-11-24 | 2021-03-16 | 广州技象科技有限公司 | Data processing method and device |
| CN112532349A (en) * | 2020-11-24 | 2021-03-19 | 广州技象科技有限公司 | Data processing method and device based on decoding abnormity |
| US11095878B2 (en) | 2011-06-06 | 2021-08-17 | Canon Kabushiki Kaisha | Method and device for encoding a sequence of images and method and device for decoding a sequence of image |
| CN114520788A (en) * | 2022-04-20 | 2022-05-20 | 创思(广州)电子科技有限公司 | Self-checking type information transmission control algorithm with storage nodes |
| US20230066899A1 (en) * | 2020-05-26 | 2023-03-02 | Vivo Mobile Communication Co., Ltd. | Video data processing method and apparatus, and electronic device |
| CN116614596A (en) * | 2023-07-18 | 2023-08-18 | 基石酷联微电子技术（北京）有限公司 | High-speed and low-speed composite audio and video bidirectional transmission system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080067C (en) * | 1993-07-19 | 2002-02-27 | 英国电讯有限公司 | Detecting errors in video images |
| DE69928798T2 (en) * | 1999-08-31 | 2006-07-27 | Lucent Technologies Inc. | Error detection system for video signal |
| KR100755688B1 (en) * | 2005-02-02 | 2007-09-05 | 삼성전자주식회사 | Apparatus and method for Error concealment |
-
2006
- 2006-09-27 CN CN 200610062855 patent/CN101155311B/en active Active
Cited By (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478685B (en) * | 2009-01-16 | 2012-05-23 | 中兴通讯股份有限公司 | Anti-interference network video transmission method and apparatus |
| WO2011000200A1 (en) * | 2009-07-03 | 2011-01-06 | 深圳市融创天下科技发展有限公司 | Effective streaming media transmission method |
| WO2011038694A1 (en) * | 2009-09-30 | 2011-04-07 | 华为技术有限公司 | Method, device and network system for transmission processing and sending processing of video data |
| US9215498B2 (en) | 2009-09-30 | 2015-12-15 | Huawei Technologies Co., Ltd. | Video data transmission processing method, video data sending processing method, apparatus, network system |
| CN102316360A (en) * | 2010-07-09 | 2012-01-11 | 华为终端有限公司 | Video refreshing method, device and system |
| CN102316360B (en) * | 2010-07-09 | 2015-11-25 | 华为终端有限公司 | Video refreshing method, Apparatus and system |
| CN103119895A (en) * | 2010-09-16 | 2013-05-22 | 德国电信股份有限公司 | Method of and system for measuring quality of audio and video bit stream transmissions over a transmission chain |
| CN102457714A (en) * | 2010-11-01 | 2012-05-16 | 中国移动通信集团上海有限公司 | Method, system and device for transmission of audio-video data acquired by video camera |
| WO2012094994A1 (en) * | 2011-01-11 | 2012-07-19 | 中兴通讯股份有限公司 | Method and system for realizing lost package retransmission in streaming media |
| US11146792B2 (en) | 2011-01-12 | 2021-10-12 | Canon Kabushiki Kaisha | Video encoding and decoding with improved error resilience |
| US10499060B2 (en) | 2011-01-12 | 2019-12-03 | Canon Kabushiki Kaisha | Video encoding and decoding with improved error resilience |
| US10506236B2 (en) | 2011-01-12 | 2019-12-10 | Canon Kabushiki Kaisha | Video encoding and decoding with improved error resilience |
| US10609380B2 (en) | 2011-01-12 | 2020-03-31 | Canon Kabushiki Kaisha | Video encoding and decoding with improved error resilience |
| CN103430538A (en) * | 2011-02-24 | 2013-12-04 | 斯凯普公司 | Feedback based reference frame selection for video coding |
| US11095878B2 (en) | 2011-06-06 | 2021-08-17 | Canon Kabushiki Kaisha | Method and device for encoding a sequence of images and method and device for decoding a sequence of image |
| US9706565B2 (en) | 2011-12-14 | 2017-07-11 | Huawei Technologies Co., Ltd. | Method and device for video transmission |
| CN103166995B (en) * | 2011-12-14 | 2016-08-10 | 华为技术有限公司 | A kind of video transmission method and device |
| CN103166995A (en) * | 2011-12-14 | 2013-06-19 | 华为技术有限公司 | Method and device of video transmission |
| WO2013086953A1 (en) * | 2011-12-14 | 2013-06-20 | 华为技术有限公司 | Method and device for video transmission |
| 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 |
| CN102611894B (en) * | 2012-03-02 | 2015-01-07 | 华为技术有限公司 | Method, device and system for detecting video transmission packet loss |
| CN102611894A (en) * | 2012-03-02 | 2012-07-25 | 华为技术有限公司 | Method, device and system for detecting video transmission packet loss |
| CN103378955A (en) * | 2012-04-26 | 2013-10-30 | 华为技术有限公司 | Data retransmission method, data retransmission system, data retransmission device and data acquisition device |
| CN109936746A (en) * | 2016-12-30 | 2019-06-25 | 深圳市大疆创新科技有限公司 | Image processing method and equipment |
| US10924745B2 (en) | 2016-12-30 | 2021-02-16 | SZ DJI Technology Co., Ltd. | Image processing method and device |
| US11070732B2 (en) | 2016-12-30 | 2021-07-20 | SZ DJI Technology Co., Ltd. | Method for image processing, device, unmanned aerial vehicle, and receiver |
| CN107113441B (en) * | 2016-12-30 | 2019-07-26 | 深圳市大疆创新科技有限公司 | Image processing method, device, unmanned vehicle and receiving end |
| WO2018120218A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳市大疆创新科技有限公司 | Image processing method and device |
| WO2018120198A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳市大疆创新科技有限公司 | Image processing method and device, unmanned aerial vehicle and receiving end |
| CN107113441A (en) * | 2016-12-30 | 2017-08-29 | 深圳市大疆创新科技有限公司 | Image processing method, device, unmanned vehicle and receiving terminal |
| CN109936746B (en) * | 2016-12-30 | 2021-07-16 | 深圳市大疆创新科技有限公司 | Image processing method and apparatus |
| CN107005714A (en) * | 2016-12-30 | 2017-08-01 | 深圳市大疆创新科技有限公司 | Image processing method and equipment |
| US10911750B2 (en) | 2016-12-30 | 2021-02-02 | SZ DJI Technology Co., Ltd. | System and methods for feedback-based data transmission |
| CN107005714B (en) * | 2016-12-30 | 2019-05-14 | 深圳市大疆创新科技有限公司 | Image processing method and equipment |
| CN108401263B (en) * | 2017-02-07 | 2021-09-17 | 大唐移动通信设备有限公司 | Voice quality assessment method and device |
| CN108401263A (en) * | 2017-02-07 | 2018-08-14 | 大唐移动通信设备有限公司 | A kind of appraisal procedure and device of voice quality |
| CN111066080B (en) * | 2017-09-05 | 2023-02-28 | 德克萨斯仪器股份有限公司 | Vehicle display verification |
| CN111066080A (en) * | 2017-09-05 | 2020-04-24 | 德克萨斯仪器股份有限公司 | Vehicle display verification |
| CN109462857A (en) * | 2017-09-06 | 2019-03-12 | 中兴通讯股份有限公司 | Loss treating method, device, wireless net member and computer readable storage medium |
| US20230066899A1 (en) * | 2020-05-26 | 2023-03-02 | Vivo Mobile Communication Co., Ltd. | Video data processing method and apparatus, and electronic device |
| CN111885404A (en) * | 2020-07-16 | 2020-11-03 | RealMe重庆移动通信有限公司 | Data transmission method, device and storage medium |
| CN112532349A (en) * | 2020-11-24 | 2021-03-19 | 广州技象科技有限公司 | Data processing method and device based on decoding abnormity |
| CN112511277A (en) * | 2020-11-24 | 2021-03-16 | 广州技象科技有限公司 | Data processing method and device |
| CN114520788A (en) * | 2022-04-20 | 2022-05-20 | 创思(广州)电子科技有限公司 | Self-checking type information transmission control algorithm with storage nodes |
| CN114520788B (en) * | 2022-04-20 | 2022-07-15 | 创思(广州)电子科技有限公司 | Self-checking type information transmission control method with storage nodes |
| CN116614596A (en) * | 2023-07-18 | 2023-08-18 | 基石酷联微电子技术（北京）有限公司 | High-speed and low-speed composite audio and video bidirectional transmission system |
| CN116614596B (en) * | 2023-07-18 | 2023-09-26 | 基石酷联微电子技术（北京）有限公司 | High-speed and low-speed composite audio and video bidirectional transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101155311B (en) | 2012-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101155311B (en) | Video code stream error detecting and processing method in video communication | |
| CN100539544C (en) | Medium streaming distribution system | |
| US8499212B2 (en) | Method and apparatus for adaptive forward error correction with merged automatic repeat request for reliable multicast in wireless local area networks | |
| CN101193312B (en) | Self-adapted error recovery device, video communication system and method based on feedback | |
| US7636298B2 (en) | Apparatus and method for packet error correction | |
| JP5425397B2 (en) | Apparatus and method for adaptive forward error correction | |
| US20120272124A1 (en) | Method and System for Recovering Lost Media Data Packets | |
| CN100592670C (en) | System and method for controlling self-adaptive forward error dynamically in IPTV network | |
| EP2437421B1 (en) | Method, device and communication system for retransmitting based on forward error correction | |
| CN101174995B (en) | Method and system for monitoring multimedia service performance | |
| US20100214970A1 (en) | Method and system for transmitting data packets from a source to multiple receivers via a network | |
| JP2004537919A (en) | Forward error correction system and method for packet-based communication systems | |
| CN1526220A (en) | Date transmission/reception method | |
| JP2001045098A (en) | Data communication system, data communication unit, data communication method and storage medium | |
| Sachs et al. | Hybrid ARQ for robust video streaming over wireless LANs | |
| KR100240645B1 (en) | Packet error controller of multicast communication and method thereof | |
| CN102752184A (en) | Data communication system for real-time multicast service and method thereof | |
| US8799749B2 (en) | Ad-hoc multimedia group communication terminal robust to packet loss and method of operating the same | |
| CN102065372B (en) | Method for transmitting data in broadcast mode and related device | |
| Kim et al. | UDP-based extremely low latency streaming | |
| CN101179353A (en) | Method and system of monitoring multimedia service performance | |
| JP2006304138A (en) | Selective retransmission type communication device | |
| Lifen et al. | The performance study of transmitting MPEG4 over SCTP | |
| JP5523163B2 (en) | Transmission device, transmission method, and program | |
| Wang et al. | An SDN-Driven Reliable Transmission Architecture for Enhancing Real-Time Video Streaming Quality |
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 |