Title :
LDPC-Based Iterative Joint Source-Channel Decoding for JPEG2000
Author :
Pu, Lingling ; Wu, Zhenyu ; Bilgin, Ali ; Marcellin, Michael W. ; Vasic, Bane
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ
Abstract :
A framework is proposed for iterative joint source-channel decoding of JPEG2000 codestreams. 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. Decoding is carried out jointly in an iterative fashion. Experimental results indicate that the proposed method requires fewer iterations and improves overall system performance
Keywords :
combined source-channel coding; image coding; iterative decoding; parity check codes; JPEG2000 codestreams; LDPC; error-resilience modes; iterative joint source-channel decoding; Arithmetic; Channel coding; Erbium; Error correction; Error correction codes; Image coding; Iterative decoding; Parity check codes; Source coding; Transform coding; Error resilience (ER); JPEG2000; LDPC; joint source/channel coding; Algorithms; Computer Graphics; Image Enhancement; Image Interpretation, Computer-Assisted; Information Storage and Retrieval; Numerical Analysis, Computer-Assisted; Signal Processing, Computer-Assisted;
Journal_Title :
Image Processing, IEEE Transactions on
DOI :
10.1109/TIP.2006.888329
