New Temporal Error Concealment Method for H.264 Based on Motion Strength

In this paper, an effective error concealment algorithm for H.264-coded video is proposed. Firstly, motion vector relative strength of neighboring macroblocks (MVRS) is obtained by calculating a ratio involving the motion vectors of adjacent macroblocks. Then, according to the magnitude of MVRS, the way of generating the motion vector of the lost macroblock is determined. Finally,each lost macroblock is concealed on the basis of the selected algorithm. Satisfying simulation results are achieved, which illustrate the proposed method yields better performance than the methods in literatures for most video sequences.