模糊圖像的盲反卷積復(fù)原算法-畢業(yè)論文外文翻譯

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1、RestorationofBlurredImagesUsingBlindDeconvolutionAlgorithmMs.S.RamyaKalasalingamUniversity,AnandNagar,KrishnankoilMs.TMercyChristialKalasalingamUniversity,AnandNagar,KrishnankoilAbstract:Imagerestorationistheprocessofrecoveringtheoriginalimagefromthedegradedimage.Aspireoftheprojectist

2、orestoretheblurred/degradedimagesusingBlindDeconvolutionalgorithm.ThefundamentaltaskofImagedeblurringistode-convolutethedegradedimagewiththePSFthatexactlydescribethedistortion.Firstly,theoriginalimageisdegradedusingtheDegradationModel.ItcanbedonebyGaussianfilterwhichisalow-passfilteru

3、sedtobluranimage.Intheedgesoftheblurredimage,theringingeffectcanbedetectedusingCannyEdgeDetectionmethodandthenitcanberemovedbeforerestorationprocess.BlindDeconvolutionalgorithmisappliedtotheblurredimage.Itispossibletorenovatetheoriginalimagewithouthavingspecificknowledgeofdegradationf

4、ilter,additivenoiseandPSF.Togettheeffectiveresults⑴，thePenalizedMaximumLikelihood(PML)EstimationTechniqueisusedwithourproposedBlindDeconvolutionAlgorithm.Keywords：BlindDeconvolutionAlgorithm;CannyEdgeDetection;DegradationModel;Imagerestoration;PML;PSF1IntroductionImagedeblurringisanin

5、verseproblemwhichwhoseaspireistorecoveranimagewhichhassufferedfromlineardegradation.Theblurringdegradationcanbespaceinvariantorspace-invariant.ImagedebluiTingmethodscanbedividedintotwoclasses:nonblind,inwhichtheblurringoperatorisknown.Andblind,inwhichtheblurringoperatorisunknown121.Bl

6、urringisaformofbandwidthreductionoftheimageduetoimperfectimageformationprocess.Itcanbecausedbyrelativemotionbetweencameraandoriginalimage.Normally,animagecanbedegradedusinglow-passfiltersanditsnoise.Thislow-passfilterisusedtoblur/smooththeimageusingcertainfunctions.Imagerestorationist

7、oimprovethequalityofthedegradedimage.Itisusedtorecoveranimagefromdistortionstoitsoriginalimage

8、ories