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Enhanced temporal error concealment algorithm with edge-sensitive processing order

Error concealment techniques are widely used in video decoder with error-prone communication channels. In this paper, an enhanced edge-sensitive processing order for temporal error concealment algorithm is proposed. Side information of neighboring macroblocks of the corrupted macroblocks are considered to derive a suitable processing order for error concealment, and a new motion vector searching algorithm is also proposed for temporal error concealment. Experimental results prove that the processing order plays an important role in error concealment. With considering the processing order, the proposed algorithm outperforms existing algorithms in terms of PSNR and perceptual artifacts, and the improvement of 2.45dB in PSNR can be achieved compared with the same system with raster-scan order.