Distributed Video Coding in Pixel Domain Using Spatial Correlation at the Decoder

The application of distributed coding in many media applications, where low power and low-complexity encoder device is essential, is a new paradigm. In this paper, we propose a new pixel-domain Distributed Video Coding (DVC) scheme, in which both temporal and spatial correlations are exploited at the decoder. The Slepian-Wolf decoder is modified by introducing a source decoder to exploit Wyner-Ziv frame´s spatial correlation. We assume the most significant bitplanes to be one-dimensional stationary markov process. The markov characteristic means that this source has a residual redundancy providing additional information for the receiver and can be exploited to correct some errors introduced by the virtual channel, through a joint source-channel decoding scheme.