Fast Codeword Search Algorithm for Image Vector Quantization Based on Ordered Hadamard Transform(Image Processing, Image Pattern Recognition)
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概要
- 論文の詳細を見る
This Letter presents a fast codeword search algorithm based on ordered Hadamard transform. Before encoding, the ordered Hadamard transform is performed offline on all codewords. During the encoding process, the ordered Hadamard transform is first performed on the input vector, and then a new inequality based on characteristic values of transformed vectors is used to reject the unlikely transformed codewords. Experimental results show that the algorithm outperforms many newly presented algorithms in the case of high dimensionality, especially for high-detail images.
- 社団法人電子情報通信学会の論文
- 2003-07-01
著者
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Xu Dian-guo
Department Of Electrical Engineering Harbin Institute Of Technology
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Lu Z‐m
Harbin Inst. Of Technol. Harbin Chn
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Lu Zhe-ming
Department Of Automatic Test And Control Harbin Institute Of Technology
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SUN Sheng-He
Department of Automatic Test and Control, Harbin Institute of Technology
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Sun S‐h
Harbin Inst. Of Technol. Harbin Chn
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Sun Sheng-he
Department Of Automatic Test And Control Harbin Institute Of Technology
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Sun Sheng-he
The Department Of Automation Measurement And Control Engineering Harbin Institute Of Technology
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