Motion-oriented coding scheme for compression of concentric mosaic scene representations

A motion-oriented coding scheme for compressing concentric mosaic representations is designed based on modifications to a standardized block-based hybrid video coding scheme. The motion features of the camera capturing the concentric mosaic representations are exploited to enhance the coding efficiency and improve the decoding flexibility. The coded data is organized in a hierarchical structure into a bitstream. Two-level motion vector representation and estimation is used. Simple one-level side information is embedded to facilitate random access. The optimized coding pattern is investigated to enhance the coding efficiency. Only a small portion of reference frames needs to be accessed and decoded to get a target pixel column. This enables fast data retrieval and rapid rendering. The proposed coding scheme is capable of providing high compression efficiency and fast random selective decoding for concentric mosaic rendering.