Efficient mode selection for block-based motion compensated video coding

A method for efficiently selecting the operating modes within a block-based multi-mode video compression system is described. For a given image region, the optimum combination of modes is selected so as to minimize the overall distortion for a given bit-rate budget. Necessary conditions for optimizing the encoder operation are derived within a rateconstrained product code framework [I]. When rate and distortion dependencies exist between adjacent blocks, the ensuing encoder complexity is surmounted using a dynamic programming strategy based on the Viterbi algorithm so as to achieve the optimum selection of macroblock modes. Results are provided for the emerging H.263 video coding standard.

• Type: Conference
• Year: 1995
• Where: ICIP
• Authors: Thomas Wiegand, Michael Lightstone, T. George Campbell, Sanjit K. Mitra
• Keywords: Block-based Multi-mode Video, Distortion Dependencies, ICIP 1995, Image Processing, Operating Modes