车牌识别系统中的字符分割与识别

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1、安徽大学硕士学位论文车牌识别系统中的字符分割与识别姓名：高勇申请学位级别：硕士专业：计算机应用技术指导教师：张燕平20070401安敷人学㈣It#业论上AbslraclAbstractWiththerapiddevelopmentofdomesticeconomy,thenumberofvehicleshasincreasesquickly．Moreandmorefundsareputintotheconstructionofroads，hi【ghways，parkinglots．Roadsbeco

2、mebroaderandparkingareashavemorespacefordrivers；however,asaveryimportantpartoftransportationsystem，managementdoesnotfollowthestepsofhardwareconstructions，almosteverythingisdonebyhumanbeings．Toutilizetheconvenienceofmoderntransportation,awayshouldbefoun

3、dtomakegoodUSeoftheexistedtransportationconstructions．LicensePlateRecognitionisoneoftheresearchsubjectsinwhichthetechnologyofcomputervisionandrecognitionapplied．ThepurposeofLicensePlateRecognitionistorealizetheautomaticvehiclesupervisingwithoutotherspe

4、cialequipment．Sotheautomaticmanagementoftrafficsystemwillbemuchmoreconvenient．Thissystemisoneofkcysinadvancementintrafficsystem．Thisthesiscomparativelyexplainsthetasksandproblemsanddoesanalyticresearchacrossallthephasesofthesystem，andthenUSeBPnervenetw

5、orkbasicallycompletethecarlicenserecognitionsystemdesignandtherealization．Whatwedointhethesisisfollowing：1．Inthethesis，weintroducesometraditionalmethodofcharactersegmentationandrecognitions．Atlastwcgivethemethodofcharactersegmentationandcharacterrecogn

6、itionweusedinthisthesis．2．Inthelocatingphaseofthesystem，throughanalyzingthevalleysofthesmoothedhorizontalgraytextureprojection,weperformminor-adjustingtothebottomandtoppositiondeterminedbytherollghlocatingoperation：inthephaseofcharactersegmentation，wei

7、mprovetheoperationbyanalyzingthevalleysofthesmoothedprojectionofthetargetedpixelsfromlefttorightandbyusingthewidth，heightII安徽大学坝I毕业论史Abslractandotherbasicinformationoftheprocessedplatecharacter：3．Incharacterrecognition，wechoosethefeatureofroughgridasth

8、efeatureofcharacter,anddirectlyinputtheimprovedunitarycharacteroriginalityfeaturetoBPneuralnetworkclassifiertOrecognizethelicenseplatecharacter．Toimprovetherecognitionrateofthecharacterrecognitionsystemforvehiclelicenseplate，thethesisan