多视点视频双向实时转码技术的设计与实现

孙立峰; 蔡飞飞; 杨士强

doi:10.11834/jig.20140420

第9届和谐人机环境联合学术会议栏目 | 浏览量 : 0 下载量: 245 CSCD: 0

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专辑

多视点视频双向实时转码技术的设计与实现
The design and implementation of real time MVC transcoding
2014年19卷第4期页码：645-648
网络出版：2014-04-03，

纸质出版：2014
DOI： 10.11834/jig.20140420
稿件说明：

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孙立峰, 蔡飞飞, 杨士强. 多视点视频双向实时转码技术的设计与实现[J]. 中国图象图形学报, 2014,19(4):645-648. DOI： 10.11834/jig.20140420.

Sun Lifeng, Cai Feifei, Yang Shiqiang. The design and implementation of real time MVC transcoding[J]. Journal of Image and Graphics, 2014, 19(4): 645-648. DOI： 10.11834/jig.20140420.

摘要

多视点视频编码标准MVC是国际标准组织针对3D视频制定的编码标准，支持实时编码和兼容已有H.264标准是MVC应用推广迫切需要解决的问题。基于拓扑排序，提出一种2维预测结构到1维参考序列的映射变换机制，利用已有的H.264编码单元技术，实现了MVC-H.264双向实时转码。该方法能够兼容现有的H.264编解码器，支持高清MVC实时编码。通过3D视频直播实际应用验证了方法的有效性。本文MVC与H.264标准间的预测参考结构映射和码流转换机制，无需设计专用芯片就能同时兼容H.264和MVC标准。

Abstract

The MVC standard

as an extension of H.264 standard

provides a standardized codec reference for 3D videos. Real time encoding and keeping compatible with H.264 are key problems for deploying MVC in 3D applications. In this paper

a transformation mechanism is proposed based on topological sort

which maps the 2D prediction structure of MVC to 1D reference sequence of H.264

and then uses the basic coding technologies of H.264 to get MVC bit stream with syntax reconstruction. The experiment results show the proposed method could achieve real time performance for MVC-H.264 transcoding and are compatible with existing H.264 codec. The proposed method gives transformation mechanism of bit streams between MVC and H.264

which need no special designed SOC.