Adaptive optimal intra-update for lossy video transmission

Klaus Werner Stuhlmueller; Niko Faerber; Bernd Girod

doi:10.1117/12.386645

30 May 2000 Adaptive optimal intra-update for lossy video transmission

Klaus Werner Stuhlmueller, Niko Faerber, Bernd Girod

Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000) https://doi.org/10.1117/12.386645
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia

Abstract

An adaptive algorithm to adjust the Intra update rate of a video encoder is presented. As optimization criterion, the PSNR at the decoder after lossy transmission is used. Based on a model for the video encoder and error propagation at the video decoder the optimal Intra rate can be calculated for a given transmission channel analytically. In this paper it is shown how the parameters of these models can be measured adaptively during encoding. Thus, the Intra rate can be adjusted to changing channel conditions and sequence statistics. It is shown that a practical robust system can be built with the presented algorithm.

Citation Download Citation

Klaus Werner Stuhlmueller, Niko Faerber, and Bernd Girod "Adaptive optimal intra-update for lossy video transmission", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); https://doi.org/10.1117/12.386645

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