This distributes the error due to cell loss over the entire frame, rather than localize it. Spatial domain recovery makes use of the smoothness assumption of video signals through a minimization approach. This smoothness measure often leads to blurred edges in the recovered image. Maximally smooth image recovery in transform coding . The RVLC JPEG solution is then presented, and error detection and correction for the RVLC JPEG stream are outlined.
Error concealment is also a key technique in supporting lossy transmission.
They are very simple but may produce severe blocking artifacts. Therefore , block shuffling is better than bit interleaving in image transmission. It is also noted that this block shuffling deshuffling scheme is performed in the spatial domain in order to simplify implementation. However, when VLC is used, shuffling becomes more complicated. We then use Bayesian reasoning too derive the optimum concealment strategy under the assumptions which we have made.