Spatial-Temporal Error Concealment Scheme for Intra-coded Frames

Error concealment with good restored video quality and low computational cost is significantly required for video streams transmitted in error-prone channels, especially for real-time applications. An efficient error concealment scheme for intra-frame is proposed. Spatial circular interpolation method is used to prevent the accumulation of prediction error. Meanwhile the motion vectors surrounding the damaged MB are used when all the adjacent blocks are error to improve the effect of error concealment. The experimental results indicate that compared to the spatial error concealment algorithm in H.264, the proposed scheme can restore more texture information and improve the quality both subjectively and objectively greatly.