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1、2010InternationalConferenceonOptoelectronicsandImageProcessingAHierarchicalFrameworkfor2DDataMatrixRecognition1211AnanLiu,TianyueDang,DongHan,ZhaoxuanYang1SchoolofElectronicInformationEngineering,TianjinUniversity,Tianjin,300072,China2TianjinMunicipalScienceandTechnologyArchives,Tianjin,300011
2、,Chinaliuanan@tju.edu.cnAbstract—2DbarcoderecognitiontechniqueandsystemplaybasedonwaveletanalysisandOTSUmethod[5]todealwithanimportantroleintheindustryapplication.Itisextremelytheunnormalizedillumination.Thisalgorithmhashighchallengingtolocateandrecognizebarcodeswhenthegeneralizationabilityan
3、drobustness.Second,weproposeabackgroundisclutteredandtheilluminationisuneven.Inthisfastlocalizationmethodthatconsistsoftargetregionpaper,weproposeahierarchicalframeworkfor2DDataconnectionandconnectedcomponentlabeling.TheMatrixrecognitionandfurtherintroducethe2Dbarcodealgorithmisrobusttobarcode
4、orientationandnoise,andrecognitionsystembasedontheproposedmethod.Theunevenenvironmentillumination.Third,weproposealowsuperiorityofthisframeworkliesinthreefolds:1)itisrobustcomputationcomplexityfinelevelbarcodelocalizationtounbalancingillumination,geometricdeformationsandmethod,whichtakesadvant
5、ageofedgetrackingandRadonaffinetransform;2)barcoderegionlocalizationisperformedtransformtocomputethecoordinatesofthefourvertexesoftomakethesystemrobusttoclutterbackgroundandtosaveDataMatrix.Thethreealgorithmscanworktogetheronthecomputationcomplexity;3)thefloatingDSPhardwareplatformguaranteesth
6、edecodingaccuracyandspeedtoattainfloatingpointDSPplatform.Thelarge-scaleexperimentaleadinglevel.Thelarge-scaleexperimentshowsthatthedemonstratestheproposedframeworkisrobusttoproposedframeworkcanachievehighaccuracyandunbalancingillumination,clutterbackgroundandthesystemrobustnessfor2DDataMatrix
7、recognitionandhasbeenisabletodecodeDataMatrixinreal-time.transferredintorealproduction.Thereminderofthepaperisorganizedasfollows.Section2presentstheDataMatrixbarcodesymbol.InKeywords-2DDataMatrix;binarization;localization;Section3,wedes
