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A METHOD OF IMAGE VECTOR QUANTIZATION CODING USING RECTANGULAR TRANSFORM |
Wang Kai①;Song Guowen② |
①Information Engineering Institute of PLA, Zhengzhou; ②Chengdu Research Institute of Telecommunication Techniques, Chengdu |
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Abstract A simple and practical rectangular transform and the vector quantization technique are described. A method for image data compression by combining the rectangular transform with vector quantization technique is presented. By using this method, the dimension of vector coding and the size of the corresponding codebook are reduced; the vector encoding process is picked up; and also the coding rate is reduced. The results of simulation show that this coding method is very effective in the field of image coding.
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Received: 07 July 1988
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