OPTIMAL BIT ALLOCATION IN SCALABLE MULTIPLE DESCRIPTION VIDEO CODING FOR PACKET LOSS RESILIENCE (WedAmPO4)

Author(s) : Emrah Akyol (Koc University, Turkey) A. Murat Tekalp (Koc University, Turkey) M. Reha Civanlar (Koc University, Turkey)

Abstract : Scalable multiple description video coders (SMDC) allow for better adaptation of video transmission to varying network conditions with compression efficiency comparable to that of non-scalable MDC coders. Recently, we proposed a new SMDC video coding framework, which offers flexibility in the number of descriptions, redundancy level in each description, and bitrate of each description by post encoding processing only [2]. In this work, we propose a low complexity algorithm to find the best low and high rates for this new framework to strike the optimal trade off between compression efficiency and error resilience at a given packet loss rate. We provide experimental results, by means of network simulations, to compare our method with SMDC using a fixed number of descriptions and fixed redundancy level.

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