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Proceedings Paper

Error concealment using multiresolution motion estimation
Author(s): Augustine Tsai; Stephen M. Wiener; Joseph Wilder
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Paper Abstract

An error concealment scheme for MPEG video networking is presented. Cell loss occurs in the presence of network congestion and buffer overflow. This phenomenon of cell loss transforms into lost image blocks in the decoding process, which can severely degrade the viewing quality. The new method differs from the conventional concealment by its exploitation of spatial and temporal redundancies in large scale. The motion estimation is carried out by registering images within a multiresolution pyramid. The global motion is estimated in the lowest resolution level, and is then used to update and refine the local motion. The local motion is further refined iteratively at higher resolution levels. An affine transform is used to extract translation, scaling and rotation parameters. In many applications where there is significant camera motion (e.g., remote surveillance), the new method performs better than the conventional concealment.

Paper Details

Date Published: 3 October 1995
PDF: 5 pages
Proc. SPIE 2597, Machine Vision Applications, Architectures, and Systems Integration IV, (3 October 1995); doi: 10.1117/12.223993
Show Author Affiliations
Augustine Tsai, Rutgers Univ. (United States)
Stephen M. Wiener, Rutgers Univ. (United States)
Joseph Wilder, Rutgers Univ. (United States)

Published in SPIE Proceedings Vol. 2597:
Machine Vision Applications, Architectures, and Systems Integration IV
Bruce G. Batchelor; Susan Snell Solomon; Frederick M. Waltz, Editor(s)

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