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DEVICE AND METHOD FOR GENERATING CODE BOOK USED FOR VECTOR QUANTIZATION, VECTOR QUANTIZING DEVICE, AND RECORDING MEDIUM
DEVICE AND METHOD FOR GENERATING CODE BOOK USED FOR VECTOR QUANTIZATION, VECTOR QUANTIZING DEVICE, AND RECORDING MEDIUM
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机译:生成用于矢量量化,矢量量化设备和记录介质的代码簿的装置和方法
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摘要
PROBLEM TO BE SOLVED: To actualize a code book which is adaptive to various images and has high versatility without increasing the capacity of a memory for storing the code book. SOLUTION: The code of a solid pattern which gradually varies in luminance value in a block is generated and the code of an edge pattern which varies abruptly in luminance value is generated; and those obtained codes are stored in the memory 10. When vector quantization is actually performed, the pattern codes stored in the memory are processed to generate the code of a pattern different from them and the code is used for vector quantization to actualize adaptation to all kinds of images consisting of the solid pattern and edge pattern; and only the basic patterns are stored in the memory 10 to suppress the memory capacity small.
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