LDPC-Based Iterative Joint Source-Channel Decoding for JPEG2000

LDPC-Based Iterative Joint Source-Channel Decoding for JPEG2000

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...

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Veröffentlicht in:IEEE transactions on image processing 2007-02, Vol.16 (2), p.577-581
Hauptverfasser: Lingling Pu, Zhenyu Wu, Bilgin, A., Marcellin, M.W., Vasic, B.
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Applied sciences
Arithmetic
Channel coding
Channels
Coders
Coding
Coding, codes
Computer Graphics
Decoders
Decoding
Encoders
Erbium
Error correction
Error correction codes
Error resilience (ER)
Exact sciences and technology
Image coding
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Image processing
Information Storage and Retrieval - methods
Information, signal and communications theory
Iterative decoding
joint source/channel coding
JPEG2000
LDPC
Miscellaneous
Numerical Analysis, Computer-Assisted
Parity check codes
Performance enhancement
Signal and communications theory
Signal processing
Signal Processing, Computer-Assisted
Source coding
Telecommunications and information theory
Transform coding
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Beschreibung
Zusammenfassung: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
ISSN:1057-7149
1941-0042
DOI:10.1109/TIP.2006.888329