Recent and Current Research on Very Low Bit-Rate Video Coding in Japan

Masahide KANEKO  

IEICE TRANSACTIONS on Communications   Vol.E79-B   No.10   pp.1415-1424
Publication Date: 1996/10/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Very Low Bit-Rate Video Coding)
very low bit-rate video coding,  intelligent image coding,  model-based coding,  waveform coding,  motion compensation,  region segmentation,  integrated 3-D visual communication,  

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This paper presents an overview of research activities in Japan in the field of very low bit-rate video coding. Related research based on the concept of "intelligent image coding" started in the mid-1980's. Although this concept originated from the consideration of a new type of image coding, it can also be applied to other interesting applications such as human interface and psychology. On the other hand, since the beginning of the 1990's, research on the improvement of waveform coding has been actively performed to realize very low bit-rate video coding. Key techniques employed here are improvement of motion compensation and adoption of region segmentation. In addition to the above, we propose new concepts of image coding, which have the potential to open up new aspects of image coding, e.g., ideas of interactive image coding, integrated 3-D visual communication and coding of multimedia information considering mutual relationship amongst various media.