应用可见-近红外高光谱分析烟叶的颜色和部位特征.pdf

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1、第３４卷，第１０期光谱学与光谱分析Vol畅３４，No畅１０，pp２７５８‐２７６３２０１４年１０月SpectroscopyandSpectralAnalysisOctober，２０１４AnalysisofTobaccoColorandLocationFeaturesUsingVisible‐NearInfraredHyperspectralData１１２２CAIJia‐yue，LIANGMiao，WENYa‐dong，YUChun‐xia，２２１１倡WANGLuo‐ping，WANGYi，ZHAOLong‐lian，LIJun‐hui１．CollegeofInformatio

2、nandElectricalEngineering，ChinaAgriculturalUniversity，Beijing　１０００８３，China２．TechnologyCenterofYunnanTobaccoIndustryCo．，Ltd．，Kunming　６５０２３１，ChinaAbstractInthepresentpaper，sixcategoriesofstandardindustrialgradingtobaccoprovidedbyHongtaGrouparetakenasexperimentalsamples，includingthreedifferent

3、tobaccolocations‐upper（B），middle（C）andlower（X）parts，witheachpartcontainingtwokindsoftobaccocolors‐orange（O）andlemonyellow（L）．TwomethodsincludingprojectionmodelmethodbasedonprincipalcomponentandFishercriterion（PPF）andsupportvectormachine（SVM）methodareusedtoanalyzecolorandlocationfeaturesofto

4、baccobasedonvisi‐ble‐nearinfraredhyperspectraldata．Theresultsofprojectionmodelmethodindicatethatintheprojectionandsimilarityanalysisoftobaccocolor，locationandsixtobaccogroupsclassifiedbycolorandlocation，twokindsofcolorcanbefullydifferentiated，ofwhichthesimilarityvalueis－１畅０００８．Tobaccofromup

5、perandlowerpartscanalsobefullydifferentiatedwithsimilarityvalue０畅４０５３，buttheybothhaveintersectionswithtobac‐cofrommiddlepart．Sixtobaccogroupsclassifiedbycolorandlocationcanbefullydifferentiatedaswellandtheirprojectionpositionsmeettheactualexternalfeaturesoftobacco．Theresultsofsupportvectorm

6、achinemethodindicatethatinthediscriminantanalysisoftobaccocolor，locationandsixtobaccogroupsclassifiedbycolorandlocation，theaveragerecognitionrateoftobaccocolorsreaches９８％．Theaveragerecognitionrateoftobaccolocationis９６％．Theaveragerecognitionrateofsixtobaccogroupsis９４％．Therefore，it’sfeasiblet

7、oanalyzecolorandlocationfeaturesoftobaccousingvisible‐nearinfraredhyperspectraldata，whichcanprovidereferencefortobaccoqualityevaluation，computer‐aidedgradingandtobaccointelligentacquisition，andalsooffersanewapproachtotheanalysisofexteriorfeaturesofothera