Error Concealment Algorithms Applied on Multi-view Video Sequences

Advances in display and camera technology enable new applications for three-dimensional (3D) scene communication, such as 3DTV. 3D Multi-view video contains a large amount of inter-view statistical dependencies, since all cameras capture the same scene from different viewpoints. Due to the vast raw bit rate, multi-view video data are expected to consume a large portion of available bandwidth. Therefore, an efficient compression techniques are the key for 3D scene communication. Error concealment techniques have the advantage of improving the received video quality without encoder modifications or transmission rate changes. To improve the quality of reconstructed 3D video, we propose different algorithms to conceal the erroneous and lost blocks of intra and inter coded frames exploiting the temporal, spatial and inter-view correlation between frames and views. There is a hybrid of space domain error concealment (SDEC) and time domain error concealment (TDEC) introduced for intra-frames losses. Three modes are discussed for inter-frames as well, which are time domain error concealment (TDEC), inter-view domain error concealment (IVDEC) and joint time and inter-view domain error concealment (TIVDEC).