基于偏微分方程的圖像平滑及增強算法研究.pdf

1、分類號：U49107lO一20050699Y1525276諼步犬海碩士學位論文基于偏微分方程的圖像平滑及增強算法研究高興導師妊名職稱申請學位級別楚巖副教授碩士學科專業(yè)名稱交通信息工程及控制論文提交臼期2008年4月28日論文答辯日期2008年5月28日學位授予單位長安大學答辯委員會主席學位論文評閱人巨永峰林濤祝軒AbstractInrecentyears，imageanalysisandprocessingmethodsbasedOll

2、PDEanddiffusiondrivenbygeometriccurvatureflowhasbeeninterestedinmarkedlyPDEalgorithmisafinemethodinimageanalysisandprocessingandCanbeusedinmanyaspects，suchasnoisereduction，imageenhancementandsegmentationThisdissertationf

3、ocusesonthevariationproblemandPDEinimageprocessingapplicationsAndthestudyiscarriedoutinimagerestoration，imageenhancement，imagesuperresolutionandimageinpaintingbasedontotalvariationFollowingistheoutlineofthedissertationTh

4、emajorapplicationofPDEinimageprocessinganditsvaluetoresearchareintroducedAreviewtothehistoryandactualityofimageprocessingbasedonPDEispresentedadditionallyFocusonimageenhancinginresolutionbasedonshockfiltersUsuallyreactio

5、ndiffusionequationsforimagesmoothingareparabolicpartialdifferentialequationsInSuperresolutionisabranchofimageprocessingItisallimportantandinexpensivemethodtoimproveimagequalityNoiseandblurrededgeswillbeaddedtoimagebyusin

6、ggeneralinterpolationmethodduringimageenlargementHere，superresolutionalgorithmbasedonshockfilterandanisotropicdiffusionisproposedImageinpaintingisasmallbranchofimagerestorationanditisahottopicindigitalimageprocessingfiel

7、dThroughanormalandundetectablewayimageinpaintingaimstoproducearevisedimage，photoorvideoAndtheinpaintedregionisseamlesslyimmergedintotheoriginalimageBecauseofinterference，noiseandchannelcongestion，biterrorandpackagelossar

8、ealwaysinevitableincommunicationsSo，itbecomesworsetoreconstructvideoframesatareceiverErringsignalsCallbeconcealedbymakinguseofspacetimeredundancyandvisionfeatures，andimageinpaintingcandothisworkwellGeneralmethodofinpaint

9、ingistointerpolateInthischapterimageinpaintingbasedontotalvariationisfocusedonInaddition，analgorithmforlocalimageinpaintingandglobalenhancingisproposedKeywords：Imagerestoration；Imageenhancement；Superresolution；；Variation