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Proceedings Paper

Data recovery using improved RVLC in MPEG-4
Author(s): Sunil Kumar; Liyang Xu
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Paper Abstract

In this paper, we present a low-complexity RVLC decoding scheme for MPEG-4 video (including the effect of DC/AC prediction) that recovers more blocks and sometimes more MBs from error propagation region of corrupted video packets, as compared to the MPEG-4 scheme. The remaining blocks and MBs are concealed, by using maximally smooth error concealment scheme. It is shown that the proposed scheme achieves better data recovery, both in terms of PSNR and perceptual quality. In addition, we present more conditions for better error detection than those suggested in MPEG-4, and also discuss properties of error propagation in corrupted video packets. Since the schemes are purely decoder based, the compliance with the standard is fully maintained.

Paper Details

Date Published: 19 November 2003
PDF: 11 pages
Proc. SPIE 5241, Multimedia Systems and Applications VI, (19 November 2003); doi: 10.1117/12.514465
Show Author Affiliations
Sunil Kumar, Clarkson Univ. (United States)
Liyang Xu, Clarkson Univ. (United States)


Published in SPIE Proceedings Vol. 5241:
Multimedia Systems and Applications VI
Andrew G. Tescher; Bhaskaran Vasudev; V. Michael Bove; Ajay Divakaran, Editor(s)

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