The compressed video stream transmission is a challenging task due to loss-prone, time-varying and limitation
bandwidth characteristics. In this paper, improved temporal error concealment based on boundary matching algorithm is
presented, we use an optimized mode selection for the lost macroblock based on candidate motion vector set, and adopt
an improved BMA to estimate lost macroblock motion vectors for H.264 coded video. Experimental results show that
improved temporal error concealment algorithm gets better video quality over a large set of operating conditions.