Video code stream error detecting and processing method in video communication

A video communication and error detection technology, applied in the field of image information transmission and processing, can solve problems such as the degradation of decoded image quality, and achieve the effect of strong anti-interference ability, recovery ability, and high speed.

Active Publication Date: 2012-09-05
ZTE CORP
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a video code stream error detection method in the video communication process, which can solve the problem of decoding image quality degradation caused by data loss or damage caused by channel errors and channel congestion in the video communication process. Data loss in transit is quickly detected, allowing error recovery to be managed with short feedback delays

Method used

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  • Video code stream error detecting and processing method in video communication
  • Video code stream error detecting and processing method in video communication
  • Video code stream error detecting and processing method in video communication

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Embodiment Construction

[0023] The invention proposes a fast error detection and processing method based on data index.

[0024] Such as image 3 with Figure 4 When the terminal 1 performs encoding, an index between the data transmission packet number and the encoded image information is established. When encoding a frame of image, part or all of the area on the image is encoded into a data packet, and then this data packet is sent to the receiving end. This data packet has a corresponding relationship with the frame number of the image and the corresponding coding area in the image. When establishing an index between the data sending packet number and the encoded image information, the sending packet number can be the RTP packet number, the data frame number, or other encoding information that can calculate the RTP packet number and the data frame number. For convenience, the RTP packet sequence number is used as an example to indicate the sending data identification number, but it is not limited to...

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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 [0001] The invention belongs to the field of image information transmission and processing, and specifically relates to video bitstream error detection. Background technique [0002] With the development of wired broadband networks and wireless networks and driven by user needs, multimedia technology and related applications have received more and more attention and are considered to be one of the mainstream applications of high-speed networks in the future. Multimedia applications, especially video applications, have stricter requirements for real-time performance and greater bandwidth requirements than traditional Internet applications such as WWW and E-mail. Since most of the video applications use high compression encoding technology, its requirements for transmission errors are particularly harsh, but wired or wireless networks do not provide transmission QoS (Quality of Serverices) guarantees, so the resistance of video applications to transmission errors is...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/64H04L29/06H04N19/89
Inventor 陈睿王志英王宁戴志军
Owner ZTE CORP
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