Error concealment techniques for multi-view video

The H.264/AVC multi-view extension provides for high compression ratios of multi-view sequences. The coding scheme used exploits spatial, temporal and inter-view dependability for this scope. However, in the event of transmission errors, this leads to the propagation of the distorted macroblocks, degrading the quality of the video perceived by the user. In this paper we introduce error resilient coding and error concealment techniques in Multi-view Video Coding to reduce this effect. The results obtained demonstrate that better multiview video reconstruction is obtained when Intra-coded frames are spatially concealed while Inter-coded frames are concealed using motion compensation techniques, within the multi-view prediction structure. Furthermore, additional gain in quality can be achieved when Anchor frames are concealed using a combination of spatial and motion compensation techniques.