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小波域HMT模型参数的快速估计及其在图像降噪中的应用
肖志云; 文伟; 彭思龙,
Source Publication计算机应用,
2004
Volume24(12)Issue:2004年12期Pages:7-10
Other AbstractAithoughHMTmodeicapturesintrascaieandinterscaiedependenciesofwaveietcoefficients,modeiparametertrainingiscompiexandcomputationaiiyexpensive.Tosoivethisprobiem,afastparameterestimationaigorithminwhichtrainingisnotneededwasproposed.Firstiy,eachsubbandcoefficientswereciassifiedbyspatiaiiyadaptivethreshoid.Secondiy,theiocaistatisticaifeaturesofdifferentciasseswerecomputedrespectiveiy,andHMTmodeiparameterscanbeestimatedbycomputingiocaistatisticaifeatures.Finaiiy,anon-trainingHMTwasappiiedtoimagedenoising.Experimentairesuitsshowthatthisfastparameterestimationaigorithmcannotoniyreducecomputingexpenseandacceieratecomputation,butaisoprovideanimproveddenoisingperformanceofPSNRandhumanvisionbeyondothermethods.
Keyword图像降噪 / 小波域hmt模型 / 自适应阈值 / Map估计
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/12956
Collection智能制造技术与系统研究中心_多维数据分析
Corresponding Author肖志云
Recommended Citation
GB/T 7714
肖志云,文伟,彭思龙,. 小波域HMT模型参数的快速估计及其在图像降噪中的应用[J]. 计算机应用,,2004,24(12)(2004年12期):7-10.
APA 肖志云,文伟,&彭思龙,.(2004).小波域HMT模型参数的快速估计及其在图像降噪中的应用.计算机应用,,24(12)(2004年12期),7-10.
MLA 肖志云,et al."小波域HMT模型参数的快速估计及其在图像降噪中的应用".计算机应用, 24(12).2004年12期(2004):7-10.
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