A Motion Vector Recovery Error Concealment Algorithm Based on Time-Domain
Peng Liu · Computer Knowledge and Technology · 2010
According to characteristics of H.264/AVC, this paper proposes a time-domain error concealment algorithm, which is based on the H.264/AVC platform. This algorithm make full use of motion vectors between adjacent macroblocks of spatial correlation to restore the damaged macro block motion vector. In order to obtain more accurate motion vectors, this paper divides the damaged macroblock into 16 4 × 4 sub-blocks, and then the algorithm is used to obtain each sub-block motion vector, thereby restoring a damaged macroblock motion vector information. In compare with BMA algorithm and Lagrange algorithm, the experimental results demonstrate that the proposed algorithm provides acceptable performance both subjectively and objectively.