白光彩色圖象多通道聯(lián)合變換相關(guān)識別的研究.pdf

1、南開大學(xué)碩士學(xué)位論文白光彩色圖象多通道聯(lián)合變換相關(guān)識別的研究姓名：朱秀山申請學(xué)位級別：碩士專業(yè)：光學(xué)指導(dǎo)教師：翟宏琛19990501一一一一一一一一一一一——一一NoAbstractInthispapertheprincipleandtheopticalimplementationsofmultichanneljointtransformcorrelator(JTC)fortherecognitionofwhitelightchroma

2、ticpatternarepresented.Intheexperimentatricolorgratingisusedtoencodethechromaticpatterninrealtimeandanintensitydependantopticaladdressedspatiallightmodulator(OASLM)isusedtotransformtheencodedchromaticpaternintoacoherentm

3、onochromaticpatternforfurtherFouriertransform.FirstordersseparatedindiferentorientationsandzeroorderofthejointpowerspectraareobtainedonthefocusplaneofthefirstFourierlens.whichformmultiplechannelsforJTC.Oneachchanneltheco

4、rrelationresultcanbeobtainedfromtheinverseFouriertransformationofthepowerspectrum.Basedonthecorrelationresultsonthechannelschromaticpatterncanbediscriminated.Inthisdissertation.adiscriminationfunctionisintroducedformulti

5、channelcorrelationrecognitionofchromaticpatterns.Iwomuitichannel.ITCsystemswithLCDCCDandwithBSOcrystalforwhitelightchromaticpatternrecognitionareintroducedrespectively.Inthetwosystemsthezeroorderchannelisveryusefulforthe

6、shapeonlycorrelation.AtlastpartofthisthesisthediferencebetweentworecognitionsystemsandsomefactorswhichaffectthecorrelationresultsarediscussedKeywords:jointtransformcorrelation(JTC)chromaticpatternrecognition.mutichannelt