Operational rate-distortion performance for joint source and channel coding of images

This paper describes a methodology for evaluating the operational rate-distortion behavior of combined source and channel coding schemes with particular application to images. In particular, we demonstrate use of the operational rate-distortion function to obtain the optimum tradeoff between source...

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Bibliographic Details
Published in:IEEE transactions on image processing 1999-03, Vol.8 (3), p.305-320
Main Authors: Ruf, M.J., Modestino, J.W.
Format: Article
Language:English
Subjects:
Additive white noise
Applied sciences
AWGN
Bandwidth
Channel coding
Channels
Coding
Coding, codes
Effectiveness
Error analysis
Exact sciences and technology
Gaussian
Gaussian noise
Image processing
Image reconstruction
Information, signal and communications theory
Methodology
Optimization
Protection
Quantization
Rate-distortion
Signal and communications theory
Signal processing
Source coding
Telecommunications and information theory
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Summary:This paper describes a methodology for evaluating the operational rate-distortion behavior of combined source and channel coding schemes with particular application to images. In particular, we demonstrate use of the operational rate-distortion function to obtain the optimum tradeoff between source coding accuracy and channel error protection under the constraint of a fixed transmission bandwidth for the investigated transmission schemes. Furthermore, we develop information-theoretic bounds on performance for specific source and channel coding systems and demonstrate that our combined source-channel coding methodology applied to different schemes results in operational rate-distortion performance which closely approach these theoretical limits. We concentrate specifically on a wavelet-based subband source coding scheme and the use of binary rate-compatible punctured convolutional (RCPC) codes for transmission over the additive white Gaussian noise (AWGN) channel. Explicit results for real-world images demonstrate the efficacy of this approach.
ISSN:1057-7149
1941-0042
DOI:10.1109/83.748887