基于多尺度小波分析的漢字字體識別研究.pdf

1、哈爾濱工業(yè)大學碩士學位論文基于多尺度小波分析的漢字字體識別研究姓名：李雪妍申請學位級別：碩士專業(yè)：計算機科學與技術(shù)指導教師：唐降龍20050601哈爾濱工業(yè)人學工學碩士學位論文AbstractWithcomputertechnologybroadlyused，Chinesecharacterrecognitionhasreceivedconsiderableattentionduetotheincreasingdependenceonc

2、omputerdataprocessingRecentlyChinesecharacterrecognitionsystemresearchhasmadegreatprogress，andasanimportantaidofthedigitizationfileshasbeenwidelyusedButthesystemthatisjustabletecognizethecharactersisnotfittomeetthedemand

3、ofpeoplePeoplewanttodesignasystem，whichcanreconstructthestructureoflayoutToattainthisgoal，wemustrecognizethefontofcharactersThesearetheachievementsinthefieldoffontrecognitionatpresent：AZramdiniUSeSthetypographicalstructu

4、repropertiesofEnglishcharactersuchasthepositionofbaselineandthescaleofblankbetweenletters，distinguishesthefomofdifferentkindsofEnglishfontChinesecharacterstructureiscomplicatedthatisdifferentfromEnglishletter，SOAZramdini

5、‘SmethodisunqualifiedforthetaskthatrecognizesthefontofChinesecharacter；YongZhuusestextureanalysistoextractglobalfeaturesthroughGaborfiltersButthesystemcannotdealwithsinglecharacterThismethodcanonlyhandleablockofcharacter

6、s，whichisconsistedofthesamefontInfact，weneedasystem，whichCantherecognizefontofsinglecharacterbecausesometimestherei4smorethanonecharacterfontinonedocumentorthereareonlyfewcharactersthataretoofewtomakeablock，whichcailbepr

7、ocessedwithYongZhu’Smethod；ChenLiusesthemethodofwaveletanalysistodifferentiateChinesecharacterfontHowevertoomanyfeaturescalldropthespeedoftherecognitionsystem，andtheapproximationtoefficientscontainSOmuchinformationofthec

8、haracteLwhichdisturbstherecognitionofthefontThedifferentcategoriesofChinesecharacterfonthavedifferentvisualeffect，andthevisualdifferencesaremuchlessthanthedifferentincharactersWaveletanalysisisquituptomarkoflocalinformat