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Rate-oriented perceptual image coding using contrast-based quantization

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【Author】 Weiyu Yu and Jing Tian 1 School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,China 2 School of Electrical and Electronic Engineering,Nanyang Technological University,Singapore 639798,Singapore

【机构】 School of Electronic and Information Engineering,South China University of Technology； School of Electrical and Electronic Engineering,Nanyang Technological University；

【摘要】 <正>A new image coding approach is proposed by controlling the quantization step via minimizing the perceptual distortions(in terms of image’s contrast measurement).The proposed method is a rate-oriented contrast-based approach,which is in contrast to the conventional quality-oriented contrast-based image coding.The algorithm achieves a higher perceptual quality performance against several methods developed previously.更多还原

【Abstract】 A new image coding approach is proposed by controlling the quantization step via minimizing the perceptual distortions(in terms of image’s contrast measurement).The proposed method is a rate-oriented contrast-based approach,which is in contrast to the conventional quality-oriented contrast-based image coding.The algorithm achieves a higher perceptual quality performance against several methods developed previously.更多还原

【关键词】 perceptual； quantization； minimizing； wavelet； pixel； distortion； PSNR； desired； weighting； absolute；

【基金】 supported by the Guangdong Science Fund(No.9351064101000003);the National Natural Science Foundation of China(Nos.60972133 and 60872123); the Joint Fund of the National Natural Science Foundation and the Guangdong Provincial Natural Science Foundation(No.U0835001);the Fund of Provincial Key Laboratory for Computer Information Processing Technology of JiangSu,China(No.KJS0922)

【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2010年04期

【分类号】TN919.81
【下载频次】35

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