Flat-scalable video communication for wireless transmission error tolerance

Ryoichi Kawada; Atsushi Koike; Masahiro Wada; Yoshinori Hatori

doi:10.1117/12.503250

23 June 2003 Flat-scalable video communication for wireless transmission error tolerance

Ryoichi Kawada, Atsushi Koike, Masahiro Wada, Yoshinori Hatori

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.503250
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

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.

Citation Download Citation

Ryoichi Kawada, Atsushi Koike, Masahiro Wada, and Yoshinori Hatori "Flat-scalable video communication for wireless transmission error tolerance", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.503250

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