OCR中的細化算法與多進制小波在人臉識別中的應用.pdf

1、中山大學碩士學位論文(2005)Y766363DCR中的細化算法與多進制小波在人臉識別中的應用專業(yè)：計算數(shù)學碩士生：董健衛(wèi)導師：楊力華教授論文答辯委員會(簽名)：蛀號曠[屯本事專糾是乏f饑邑吮2005年4月中山大學碩士論文0cR中的細化算法與多進制小波在人臉識別中的應用ThinningaIgOrithmSOnOCRandtheapp|_catiOnOfmuIti—bandwaVeIetstofacereCOgnItIOnVM司or：Co

2、mputationalMatllematic8Student：JianweiDongSupervisor：Lihua‰lgAbStraCtThispaperiscomposedoftwOpartsThefirstmainlyaimsatminningalgorithmsonoCRalldthesecondfocusesmainlyontlleappncationofmultibandwavelctstofacerecognitionop

3、ticalCh缸∞tcrIkcognmon(OCR)isoneofsuchareas血athaVefoundmemostsuccessfulapplicationsinpattemrccognitionSincemefiftiesoftwe蚯ethcentury，OCRhasbeenaveryattrac曲gfieldinpattemrccognitionFeatureextractioniscnIcialtot11efecogni60

4、nmteinoCRandstatisticorstmcturaIfeatIlresa豫commonlyusedThinningisaveryiIIlportantandtypicalpreprocessingformanymethodsOffeatureextractionincharacterrecognitionAgoodalgorithmofminningshouldbelesstime—consunliIlgandproduce

5、sunwantedartifactsaslessaspossibleManyalg州thmsandtechniquesforcharacterthinninghavebeendeVelopedinthepastdecadesInttIispaper，byconsidcIing山ee追htneighborsofmecoIltourpixelsofimage，twoimpmVedminningalgorithmsareproposedwhi

6、chcanproduceaskeletonwi血goodsymmeⅡyandlessdefo衄ationatthecrossorinterscctionofstmkesMultibandwavdetis弛iⅡ1ponantbranchofwavelctanalysisItissupeTi∞to2baIldwaveletconsideringsyrnII圮t阱compactsupport，ordlogoⅡalityandregularit

7、ysimultaneouslyMaIlyachievenlentshavebeenmadeonⅡletheoryof刪ltibaIldwaveletsanditsapplicationsintherecentyearshmispaperei曲tbandwaveletisappliedtofacerecognitionExperimentsgiVeencouragingresults№ywO州s：oCR，pattemrecognjtion