22 March 1996 Varying slice size to improve error tolerance of MPEG video
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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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Iain E. Garden Richardson, Martyn J. Riley, "Varying slice size to improve error tolerance of MPEG video", Proc. SPIE 2668, Digital Video Compression: Algorithms and Technologies 1996, (22 March 1996); doi: 10.1117/12.235431; https://doi.org/10.1117/12.235431
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