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Robust stack-run coding for low bit-rate image transmission over noisy channels

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3 Author(s)
C. Pepin ; Docomo Commun. Labs. USA Inc, San Jose, CA, USA ; P. Raffy ; R. M. Gray

We propose a multiresolution algorithm to jointly optimize a source coder and channel coder. The variable-rate source coder combines an optimal bit-allocation strategy and efficient stack-run coding. This compression scheme, concatenated with appropriate rate-compatible punctured convolutional codes, provides a competitive approach to state-of-the-art extensions of zerotree methods to noisy channels. Results show that under the assumption of almost zero probability of decoding error, the proposed scheme provides good performance for a lower complexity.

Published in:

IEEE Signal Processing Letters  (Volume:9 ,  Issue: 7 )