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Proceedings Paper

Modified symmetrical reversible variable length code and its theoretical bounds
Author(s): Chien-Wu Tsai; Ja-Ling Wu; Shu-Wei Liu
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Paper Abstract

The reversible variable length codes (RVLCs) have been adopted in the emerging video coding standards -- H.263+ and MPEG- 4, to enhance their error-resilience capability which is important and essential in the error-prone environments. The most appealing advantage of symmetrical RVLCs compared with asymmetrical RVLCs is that only one code table is required to forward and backward decoding, however, two code tables are required for asymmetrical RVLCs. In this paper, we propose a simple and efficient algorithm that can produce a symmetrical RVLC from a given Huffman code, and we also discuss theoretical bounds of the proposed symmetrical RVLCs.

Paper Details

Date Published: 19 April 2000
PDF: 11 pages
Proc. SPIE 3974, Image and Video Communications and Processing 2000, (19 April 2000); doi: 10.1117/12.382995
Show Author Affiliations
Chien-Wu Tsai, Lunghwa Institute of Technology (Taiwan)
Ja-Ling Wu, National Taiwan Univ. (Taiwan)
Shu-Wei Liu, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 3974:
Image and Video Communications and Processing 2000
Bhaskaran Vasudev; T. Russell Hsing; Andrew G. Tescher; Robert L. Stevenson, Editor(s)

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