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Proceedings Paper

Varying slice size to improve error tolerance of MPEG video
Author(s): Iain E. Garden Richardson; Martyn J. Riley
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Paper Abstract

Video data encoded using the Motion Picture Experts Group (MPEG) standards is highly susceptible to errors during transmission or storage. We investigate whether the error tolerance of coded MPEG video can be improved by varying the size of each slice depending on the class of coded picture. We evaluate the effect of varying the slice size within each of the three MPEG picture classes on the error tolerance of the coded sequence. We encode a number of test sequences and subject each one to simulated transmission errors. We show that reducing the slice size in I and P pictures improves the decoded quality in the presence of errors. The slice size in B pictures can be increased without significantly reducing the tolerance to errors. Reducing the slice size in I and P pictures whilst increasing the slice size in B pictures can significantly improve the tolerance of the coded sequence to transmission errors without increasing the amount of coded data. A video sequence encoded in this way complies with the MPEG1 and MPEG2 standards.

Paper Details

Date Published: 22 March 1996
PDF: 7 pages
Proc. SPIE 2668, Digital Video Compression: Algorithms and Technologies 1996, (22 March 1996); doi: 10.1117/12.235431
Show Author Affiliations
Iain E. Garden Richardson, Robert Gordon Univ. (United Kingdom)
Martyn J. Riley, Robert Gordon Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2668:
Digital Video Compression: Algorithms and Technologies 1996
Vasudev Bhaskaran; Frans Sijstermans; Sethuraman Panchanathan, Editor(s)

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