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LDPC-Based Iterative Joint Source-Channel Decoding for JPEG2000

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5 Author(s)
Lingling Pu ; Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ ; Zhenyu Wu ; Bilgin, A. ; Marcellin, M.W.
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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

Published in:

Image Processing, IEEE Transactions on  (Volume:16 ,  Issue: 2 )

Date of Publication:

Feb. 2007

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