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Accession number;04A0171218
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| Title;LOSSLESS VIDEO CODING USING MC BASED 3D PREDICTION OPTIMIZED FOR EACH FRAME |
| Author;
SHIODERA T
(Sci. Univ. Tokyo, Chiba, Jpn)
MATSUDA I
(Sci. Univ. Tokyo, Chiba, Jpn)
ITOH S
(Sci. Univ. Tokyo, Chiba, Jpn)
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Journal Title;IEIC Technical Report (Institute of Electronics, Information and Communication Engineers)
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Journal Code:S0532B
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ISSN:0913-5685
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VOL.103;NO.539(IE2003 148-162);PAGE.53-57(2004)
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| Figure&Table&Reference;FIG.4, TBL.3, REF.8 |
| Pub. Country;Japan |
| Language;English |
| Abstract;This paper proposes an efficient lossless coding scheme for video signals. The coding scheme utilizes a novel block-adaptive 3D prediction method which predicts a video signal at each pel based on both the current and previous frames. In practice the previous frame is adaptively shifted block-by-block according to a motion vector detected in each block. The resulting prediction errors are encoded using a kind of context-adaptive arithmetic coding. In order to improve coding efficiency, not only prediction coefficients of the 3D linear prediction but also motion vectors are iteratively optimized for each frame so that a coding rate of prediction errors can have a minimum. Experimental results show that coding rates of the proposed scheme are 18-55% lower than those of a JPEG-LS based intra-frame coding scheme. (author abst.) |
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