A novel motion recovery using temporal and spatial correlation for a fast temporal error concealment over H.264 video sequences

In this paper, we proposed an effective motion recovery method with low complexity for a fast temporal error concealment over H.264 video sequences. The proposed algorithm uses temporal and spatial motion vectors of a lost block and neighboring blocks. A neighboring block with minimum SAD-MV between its trajectory and trajectory of lost block is chosen as the most reliable candidate. In order to avoid the mosaic artifacts in the process of recombination of optimal blocks, final motion vector of the block is recalculated using H.264 partition information and then H,.264 1/4 interpolation is followed. The proposed method is faster and better in PSNR compared with previous algorithms. The proposed algorithm may be used as a powerful error concealment tools for real time video applications, such as mobile phone, tactile display and WSN cameras, using H.264/AVC decoder, especially in the ROI tracking applications, because of low memory requirement.