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Proceedings Paper

Flat-scalable video communication for wireless transmission error tolerance
Author(s): Ryoichi Kawada; Atsushi Koike; Masahiro Wada; Yoshinori Hatori
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Paper Abstract

Measures for coping with transmission errors in wireless environments are essential for mobile video communication. This paper proposes a “flat-scalable” scheme that has transmission error tolerance and is applicable regardless of the video compression method. The proposed scheme, which uses two sets of encoders and decoders, is a diversity method in the application layer. This scheme, by differentiating the temporal position of I-pictures between the two encoders, obtains two decoded pictures whose coding noises differ. When there is no error on both streams, it averages the two decoded pictures to reduce noise and improve PSNR. When one of the streams has errors, it outputs the decoded picture without errors. This scheme greatly improves the received picture quality compared to the conventional single stream scheme especially when there are transmission errors.

Paper Details

Date Published: 23 June 2003
PDF: 8 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503250
Show Author Affiliations
Ryoichi Kawada, KDDI R&D Labs. Inc. (Japan)
Atsushi Koike, KDDI R&D Labs. Inc. (Japan)
Masahiro Wada, KDDI R&D Labs. Inc. (Japan)
Yoshinori Hatori, KDDI R&D Labs. Inc. (Japan)

Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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