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Processing method of code stream of stereo video and apparatus thereof

A processing method and stereoscopic video technology, applied in the video field, can solve problems such as image distortion, AVC code loss distortion rate increase, reconstruction macroblock distortion, etc., and achieve the effect of no deformation and distortion

Active Publication Date: 2012-05-02
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, due to changes in the reference frame, prediction mode, and motion vector information, the reconstructed macroblock is distorted, and the distortion will be introduced into the encoded subsequent frames, resulting in an increase in the AVC code loss after conversion. Distortion, reducing image quality

Method used

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  • Processing method of code stream of stereo video and apparatus thereof
  • Processing method of code stream of stereo video and apparatus thereof
  • Processing method of code stream of stereo video and apparatus thereof

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Embodiment Construction

[0099] In order to facilitate the understanding of those skilled in the art, the English words appearing in the application documents are firstly explained.

[0100] MVC standard: Multiview Video Coding, multi-view video coding standard; this patent specifically refers to the multi-view coding standard formulated in Appendix H of the H.264 / AVC standard.

[0101] NAL: Network Abstraction Layer, network abstraction layer;

[0102] RBSP: Raw Byte Sequence Packet, original byte sequence load;

[0103] VCL: Video Coding Layer, video coding layer;

[0104] JVT: Joint Video Team, joint video expert group;

[0105] AVC standard: Advanced Video Coding, a new generation of video coding standard; that is, the international video coding standard H.264, the official name, ISO / IEC 14496-10.

[0106] SPS: Sequence Parameter Sets, sequence parameter set;

[0107] PPS: Picture Parameter Sets, image parameter set;

[0108] DPB: Decoded Picture Buffer, decoded image buffer;

[0109] RPLR: ...

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Abstract

The invention discloses a processing method of a code stream of a stereo video and an apparatus thereof. According to the processing method of a code stream of a stereo video, specific predetermination structure coding is employed to form an MVC code stream; a basic view sub-code stream and an expanded view sub-code stream only referring to the basic view in the MVC code stream are extracted; andafter conversion of the MVC code stream containing the two view sub-code streams, frame-to-frame processing is carried out on data of all frames in a VCL data flow of the converted MVC, so that it can be ensured that a video frame arrangement sequence of a packaged AVC code stream is identical with a corresponded frame arrangement sequence in the received MVC code stream. A video frame in the AVCcode stream and a corresponded video frame in the MVC code stream have a same reference frame list. Meanwhile, according to motion information of the MVC code stream, a field value of a field in slice header information is changed so as to realize lossless conversion from the MVC code stream to the AVC code stream; therefore, it can be ensured that an image output by an AVC decoder is identical with a corresponded image output by an MVC decoder and there is no image quality loss.

Description

technical field [0001] The present invention relates to the field of video technology, in particular to a method and device for processing stereoscopic video streams. Background technique [0002] With the continuous development of multimedia technology, multi-view video has gained more and more attention, and has gradually entered people's daily life. However, the amount of data required by multi-view video applications is very large, which increases the burden of transmission and storage. For this reason, JVT (Joint Video Team, Joint Video Experts Group) specially formulated the MVC (Multiview Video Coding, multi-view video coding) standard. The MVC standard is an extension of the H.264 / AVC (Advanced Video Coding, next-generation video coding) standard (official name, ISO / IEC 14496-10), and is specified in Appendix H of the H.264 / AVC standard. The MVC standard adds a new technology on the basis of the H.264 / AVC standard, which makes full use of the correlation between di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50H04N13/00H04N19/40H04N19/597
Inventor 蓝德岩张军李厚强
Owner UNIV OF SCI & TECH OF CHINA
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