Title :
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
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;
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
DOI :
10.1109/ICME.2006.262812
