Polishing: A Technique to Reduce Variations in Cached Layer-Encoded Video
Key: ZHSS03-1
Author: Michael Zink, Oliver Heckmann, Jens Schmitt, Ralf Steinmetz
Date: September 2003
Kind: In proceedings
Book title: Proceedings of the 29th Euromicro, Belek-Antalya, Turkey
Abstract: In this paper we introduce a technique called polishing to reduce variations in cached layer encoded video by identifying those segments which can be removed without diminishing the perceptual quality. In fact, polishing even allows to increase the perceptual quality of a layer encoded video. This can be used for perceptual quality improved playout from a cache towards a client as well as for perceptual quality aware cache replacement decisions. We devise an optimal scheme to polish layer encoded videos but show that a simple heuristic achieves similar performance in simulations. By means of simulations we furthermore show how polishing can improve the quality of the cached content.
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