Seamless MDVC in P2P: A transform-domain approach

Abstract

Multiple-description coding (MDC) provides an effective way to mitigate the effects of packet errors/loses by making use of multiple channels. Perhaps, the most attractive application of MDC is in the peer-to-peer (P2P) scenario to support simultaneous video streaming to a large population of clients. To this end, a number of multiple-description video coding (MDVC) schemes (both non-scalable and scalable) were proposed in the past few years. However, almost all non-scalable schemes would suffer from the prediction mismatch between the references used at the encoder and decoder sides; whereas all scalable schemes (involving a base-layer and some enhancement layers) would suffer from the inter-dependency within the enhancement-layer information. In this paper, we propose a transform-domain MDVC method that can solve these problems and at the same time offer some other interesting features.