Title :
Iterative joint source/channel decoding for JPEG2000
Author :
Pu, Lingling ; Wu, Zhenyu ; Bilgin, Ali ; Marcellin, XMichael W. ; Vasic, Bane
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
A framework for iterative joint source-channel decoding of JPEG2000 codestreams is presented in this paper. At the encoder, JPEG2000 is used to perform source coding with certain error resilience (ER) modes, and LDPC codes are used to perform channel coding. During decoding, the source decoder uses the ER modes to identify corrupt sections of the codestream and provides this information to the channel decoder. The decoding is carried out jointly in an iterative fashion. Our results indicate that the proposed method improves the convergence rate as well as the overall system performance.
Keywords :
combined source-channel coding; convergence; data compression; image coding; iterative decoding; parity check codes; JPEG2000 codestream; LDPC codes; convergence rate; error resilience mode; iterative joint source-channel decoding; system performance; Equations; Erbium; Image coding; Iterative algorithms; Iterative decoding; PSNR; Parity check codes; Resilience; Source coding; Transform coding;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
Print_ISBN :
0-7803-8104-1
DOI :
10.1109/ACSSC.2003.1292324
