A New Integrated Spatio-Temporal Framework for Video Error Concealment

Temporal error concealment (TEC) algorithms do not produce good results in the presence of cut scenes, camera panning or object occlusion in videos due to the lack of a suitable reference frame. Under such circumstances, spatial EC (SEC) may perform better. Thus, EC algorithms should decide adaptively between TEC or SEC. In this paper, we propose an integrated spatio-temporal EC framework which extends our previous work in TEC and SEC. The proposed algorithm decides adaptively on the best EC mode and produces average PSNR improvements of up to 4.59 dB over a coding-mode based EC algorithm. Most importantly, our algorithm produces results of much better perceptual quality.