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IEICE TRANSACTIONS on Information

Image Coding Based on Classified Side-Match Vector Quantization

Zhe-Ming LU, Jeng-Shyang PAN, Sheng-He SUN

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Summary :

The classified side-match vector quantizer, CSMVQ, has already been presented for low-bit-rate image encoding. It exploits a block classifier to decide which class the input vector belongs to using the variances of the upper and left codewords. However, this block classifier doesn't take the variance of the current input vector itself into account. This letter presents a new CSMVQ in which a two-level block classifier is used to classify input vectors and two different master codebooks are used for generating the state codebook according to the variance of the input vector. Experimental results prove the effectiveness of the proposed CSMVQ.

Publication
IEICE TRANSACTIONS on Information Vol.E83-D No.12 pp.2189-2192
Publication Date
2000/12/25
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Image Processing, Image Pattern Recognition

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