A Compound Algorithm of Denoising Using Second-Order and Fourth-Order Partial Differential Equations

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摘要 Inthispaper,weproposeacompoundalgorithmfortheimagerestoration.ThealgorithmisaconvexcombinationoftheROFmodelandtheLETmodelwithaparameterfunctionθ.Thenumericalexperimentsdemonstratethatourcompoundalgorithmisefficientandpreservesthemainadvantagesofthetwomodels.Inparticular,theerrorsofthecompoundalgorithminL2normbetweentheexactimagesandcorrespondingrestoredimagesarethesmallestamongthethreemodels.Forimageswithstrongnoises,therestoredimagesofthecompoundalgorithmarethebestinthecorrespondingrestoredimages.Theproposedalgorithmcombinesthefixedpointmethod,animprovedAMGmethodandtheKrylovacceleration.Itisfoundthatthecombinationofthesemethodsisefficientandrobustintheimagerestoration.
机构地区 不详
出版日期 2009年04月14日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)
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