DCT-BASED SIGNIFICANCE TREE IMAGE SEQUENCE CODING FOR PROGRESSIVE TRANSMISSION

概要

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This paper presents a new DCT-based embedded significance tree image sequence coding for progressive image transmission. In order to maintain compatibility with the conventional standardized algorithms and achieve an improvement of coding efficiency at very low bit rate, the MC/DCT hybrid image coding structure is fully utilized. Rearranging the DCT transformed coefficients into significance tree structure, and using the embedded zerotree quantizer, a new image sequence coder can be built, from which we can achieve an excellent coding performance for progressive image sequence transmission and precise user-specified rate control. In the tentative simulations, the proposed new image coder can show better ratedistortion performances than wavelet-based one
社団法人映像情報メディア学会の論文
2000-01-14