Few decoders in the encoder: A low complexity encoding strategy for H.26L

Abstract

In this paper we propose a reduced complexity technique for the rate-distortion optimization in JVT/H.26L in the presence of packet erasures. It is named few decoders in the encoder, and is based on the idea of generating a selected number of error patterns in the encoder, so that a limited number of co-decoding processes can be implemented to estimate the transmission distortion term. The correlation amongst packet erasures is taken into account employing a binary Gilbert model. The proposed algorithm exhibits competitive performance in terms of average PSNR and probability of decoding failure, with very affordable complexity and memory requirements.