Multiple description coding using non-hierarchical signal decomposition

Multiple description coding (MDC) combined with multiple path transport (MPT) is a new research direction for image and video transmission over unreliable networks. Using the signal decomposition and reconstruction framework that has been proven very effective for image coding, several new approaches to MDC have been developed. Instead of using hierarchical decomposition, which is aimed at maximizing the coding efficiency, non-hierarchical decomposition is used to generate correlated descriptions, to facilitate the estimation of a lost description from a received one. In this paper, we review these recent developments.