Error-resilient decoding of context-based adaptive binary arithmetic codes

被引：1
|
作者：
Jeanne M. [1 ]
Guillemot C. [1 ]
Guionnet T. [1 ,2 ]
Pauchet F. [1 ]
机构：
[1] IRISA, INRIA, Campus Universitaire de Beaulieu
[2] Envivio, Chantepie
来源：
Signal, Image and Video Processing | 2007年 / 1卷 / 1期
关键词：
Entropy coding; Error resilience; H.264/MPEG-4 AVC standard; Joint source-channel coding; Video compression; Wireless communication;
D O I：
10.1007/s11760-007-0007-6
中图分类号：
学科分类号：
摘要：
This paper addresses the problem of error-resilient decoding of bitstreams produced by the CABAC (context-based adaptive binary arithmetic coding) algorithm used in the H.264 video coding standard. The paper describes a maximum a posteriori (MAP) estimation algorithm improving the CABAC decoding performances in the presence of transmission errors. Methods improving the re-synchronization and error detection capabilities of the decoder are then described. A variant of the CABAC algorithm supporting error detection based on a forbidden interval is presented. The performances of the decoding algorithm are first assessed with theoretical sources and by considering different binarization codes. They are compared against those obtained with Exp-Golomb codes and with a transmission chain making use of an error-correcting code. The approach has been integrated in an H.264/MPEG-4 AVC video coder and decoder. The PSNR gains obtained are discussed. © 2007 Springer-Verlag London Limited.
引用
收藏
页码：77 / 87
页数：10
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