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Proceedings Paper

Packetization and cell-loss concealment for MPEG-2 video transport over ATM networks
Author(s): Enmin Song; Reza Sotudeh; Chris Bailey; Donglai Xu
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Paper Abstract

Early re-synchronization technique is a useful method to develop the error free video data in the cells after a lost cell or a transmission error. In this paper, we propose a method in which the MPEG-2 video data is packetized into cells, and the first macroblock in each cell is always located at a special bit, such as an odd bit. Hence, the early re-synchronization method can be improved to halve the computational complexity, while increasing bit-stream data content by only 13 percent. This is because the decoder will not waste its time to decode the macroblock by starting at an even bit. Furthermore, the probability of mis-decoding the macroblock can also be reduced by 50 percent. We also propose another method to utilize the start code in a cell to help correctly decoding the macroblocks located before it. Basic theoretical analysis is presented in the paper to prove that the proposed method is more effective than the existing one. The result show that the effectiveness of the re-synchronization method can be greatly improved by adopting the proposed packetizing technique.

Paper Details

Date Published: 22 January 1999
PDF: 8 pages
Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); doi: 10.1117/12.337427
Show Author Affiliations
Enmin Song, Univ. of Teesside (United States)
Reza Sotudeh, Univ. of Teesside (United Kingdom)
Chris Bailey, Univ. of Teesside (United Kingdom)
Donglai Xu, Univ. of Teesside (United Kingdom)

Published in SPIE Proceedings Vol. 3528:
Multimedia Systems and Applications
Andrew G. Tescher; Bhaskaran Vasudev; V. Michael Bove Jr.; Barbara Derryberry, Editor(s)

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