Multi-view Video Coding with Spatial Random Access Functionality

To obtain fast rendering effects of virtual viewpoint video,in this paper we propose a novel multi-view video coding method with spatial random access functionality based on H.264 AVC codec.An independent space-time cube coding is first proposed to limit the scope of inter-frame prediction via flexible re-organizing GOP partitions in time and space dimensions,which guarantees the independent decoding of each cube.As a result,random access of specific regions in the compressed data of a picture can be accelerated.The conflict of performance between full-frame compression and spatial random accessibility is then further ameliorated through regulating inter-prediction space.The results demonstrate that the proposed coding scheme not only makes a good trade-off between full-frame compression and spatial random access flexibility,but also supports selective streaming to save the channel bandwidth.