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Proceedings Paper

Efficient error-resilient codes for sparse image coefficients
Author(s): Niann Tsyk Cheng; Nick G. Kingsbury
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Paper Abstract

In many source and data compression schemes, information relating to positions of high energy samples or areas of importance often needs to be relayed to the decoder. The error resilient positional code (ERPC) is an efficient fixed rate coding scheme for encoding such positional information, or equivalently, sparse binary data patterns. It has also been designed with good channel error robustness properties, whose performance degrades gracefully with worsening channel conditions, without the possibility of breakdown or loss of sync. In this paper, the coding efficiency of the ERPC is compared to a few other standard schemes, and as well as being efficient, its error extension is shown to be low and non-catastrophic. The ERPC is then applied to an efficient error robust adaptive image coding example based on a SBC/VQ codec capable of operating in harsh channel conditions without the aid of channel coding.

Paper Details

Date Published: 1 September 1990
PDF: 10 pages
Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); doi: 10.1117/12.24277
Show Author Affiliations
Niann Tsyk Cheng, Univ. of Cambridge (United Kingdom)
Nick G. Kingsbury, Univ. of Cambridge (United Kingdom)


Published in SPIE Proceedings Vol. 1360:
Visual Communications and Image Processing '90: Fifth in a Series
Murat Kunt, Editor(s)

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