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TMM
2008

Optimal Coding of Multilayer and Multiversion Video Streams

14 years 3 days ago
Optimal Coding of Multilayer and Multiversion Video Streams
Abstract--Traditional video servers partially cope with heterogeneous client populations by maintaining a few versions of the same stream with different bit rates. More recent video servers leverage multilayer scalable coding techniques to customize the quality for individual clients. In both cases, heuristic, error-prone, techniques are currently used by administrators to determine either the rate of each stream version, or the granularity and rate of each layer in a multilayer scalable stream. In this paper, we propose an algorithm to determine the optimal rate and encoding granularity of each layer in a scalable video stream that maximizes a system-defined utility function for a given client distribution. The proposed algorithm can be used to compute the optimal rates of multiversion streams as well. Our algorithm is general in the sense that it can employ arbitrary utility functions for clients. We implement our algorithm and verify its optimality, and we show how various structuri...
Cheng-Hsin Hsu, Mohamed Hefeeda
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2008
Where TMM
Authors Cheng-Hsin Hsu, Mohamed Hefeeda
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