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1、AbstractThepurposeofthebanknoteanalysistechnologyisthroughanalysisandunderstandbanknoteforthehighreliabilityofbanknoterecognitionandeffectivelydetecttheauthenticity,oldandnew?wornofbanknote・Doingthattoensurethesafetyandcleannessofbanknotecirculateinthemarket.Manycountriesraisesomehigherrequir
2、ementsfortheintegrityandcleannessofthebanknote,becauseitrepresentsthecountry'sdevelopmentleveloftheeconomyandculture.Withthegreattechnologicaladvancesincolorprinting,duplicatingandscanning,thedifficultyandcostofbanknotecounterfeitingaregreatlyreduced.Counterfeitingproblemhavebecomemoreandmore
3、serious・Allthesehaveraisednewchallengestothebanknoteanalysistechnology・Duetothebanknote^relativelystabletypeoftheprint,tocomparethedetectbanknoteandthereferencebanknotesisaneffectivemethodofbanknoteanalysis.Themaincontentsareasfollow:Firstly,banknotehasbothspecialstructuralcharacteristicandlo
4、calinstabilitycharacteristic.Thispaperusesahierarchicaltransformationmodel.Theglobaldeformationofthebanknoteimageismodeledbyanaffinetransformationbasedonfeaturepoint,whilethelocalimage'snonrigiddeformationisdescribedbyanFFD(free-formdeformationmodel).Secondly,fortheproblemsofthebanknoterecogn
5、ition,thepaperraisesamethodfortheidentificationofsimilarbanknotebasedonimageregistration.ThismethodachievesahighrecognitionaccuracyinUSdollarandinsomeextentcanavoidtheimpactofworn.Thirdly,fortheinfraredsecurityimageofbanknote,raisethemethodbasedonedgeinformationandbasedongrayscalehistogramcoe
6、fficientrespectively.Detectingdifferentlocalkeysecurityfeatureandobtainagooddetectionresult.Finally,intheprocessofdegradation,thesecurityimagewillbecomeedgeintensity,thesecuritypatternisblurred,inordertoinordertoovercometheinterferenceofbanknotesdegradationforthesecuritydetection,weproposalan
7、banknotesanalysismethodofcombinationtheoldandnewandtheauthenticityofbanknote.Keywords:banknoteanalysis,imageregistration,featureextraction,securityfeaturedetect目录摘要IAbstractII第1章绪论11」课题背景及研究目的和意义11.2国内外相关研究现状21.2.1纸币图像分类21.2.2纸币图像的特征检测41.2.3图
