Controlled Complexity Map Decoding of CABAC Encoded Data

Author

Jamaa, S.B. ; Kieffer, Michel ; Duhamel, Pierre

Author_Institution

LSS-CNRS-Supelec, Univ. Paris-Sud XI, Gif-sur-Yvette

fYear

2006

fDate

9-12 July 2006

Firstpage

1441

Lastpage

1444

Abstract

In this paper, we present a joint source-channel decoding technique based on exact MAP estimation for data encoded by CABAC (context-based adaptive binary arithmetic coding) in standards like H.264/AVC. Soft decoding is put at work using an improved sequential decoding technique, achieving a trade-off between complexity and efficiency of the proposed algorithms. Error detection is realized by exploiting the binarization scheme and redundancy left in the code string, so that CABAC compression efficiency is preserved and no additional redundancy is compulsory

Keywords

adaptive codes; arithmetic codes; binary codes; code standards; combined source-channel coding; data compression; error detection; maximum likelihood decoding; redundancy; sequential decoding; video coding; CABAC; H.264-AVC; MAP estimation; binarization scheme; code string; context-adaptive binary arithmetic coding; error detection; joint source-channel decoding technique; redundancy; sequential decoding technique; soft decoding; Adaptive control; Arithmetic; Automatic voltage control; Data communication; Error correction; Maximum likelihood decoding; Maximum likelihood estimation; Programmable control; Propagation losses; Redundancy;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2006 IEEE International Conference on

Conference_Location

Toronto, Ont.

Print_ISBN

1-4244-0366-7

Electronic_ISBN

1-4244-0367-7

Type

conf

DOI

10.1109/ICME.2006.262812

Filename

4036881