An improved error concealment strategy driven by scene motion properties for H.264/AVC decoders

This paper deals with the possibility of improving the concealment effectiveness of an H.264 decoder, by means of the integration of a scene change detector. This way, the selected recovering strategy is driven by the detection of a change in the scene, rather than by the coding features of each frame. The scene detection algorithm under evaluation has been chosen from the technical literature, but a deep analysis of its performance, over a wide range of video sequences having different motion properties, has allowed the suggestion of simple but effective modifications, which provide better results in terms of final perceived video quality.