Confident Recovery for Lost Motion Vectors in Video Transmission

Error concealment techniques are very efficient for recover the corrupted or lost information of compressed video sequences caused by video communication over error-prone networks. A new error concealment algorithm is proposed to give a more precise estimation of the lost motion vectors. The confident degree method is used to define a filter of neighbor blocks’ motion vectors. The estimation will be executed according to the output of the filter. Simulation results show that the proposed method can recover the higher quality image in different video sequences, comparing to the existing traditional concealment algorithms.