基于KFDA的步態(tài)身份識別.pdf

1、華僑大學(xué)碩士學(xué)位論文基于KFDA的步態(tài)身份識別姓名：楊競菁申請學(xué)位級別：碩士專業(yè)：計算機應(yīng)用指導(dǎo)教師：吳清江20060101同等學(xué)力人員申請碩士學(xué)位論文基于KFDA的步態(tài)身份識別3AbstractInthispaperthetechnologyofhumanidentificationbasedongaitismainlyconcerned.Weanalyzesomegaitrecognitionmethodsthatwehavekno

2、wnprobedintothegaitfeaturesextractingmethodespecially.anewgaitrecognitionmethodbasedonkernelbasedFisherDiscriminationAnalysisisproposed.FextractingthegaitfeaturesweuseLeastMedianofSquares(LMedS)methodtocarryonbackgroundm

3、odelingthebackgroundimageisgottenthencarryoutdifferencetosubtractthebackgroundprocessthesubtractedimagebycountingthesobeledgesmathematicsmphologyoperationgettwovaluegaitsubtraction.Finallywecarryontheaftertreatmentgettin

4、gridofthenoisepackingthecavityintheoutline.Drawthegaitoutlineofpeoplesubtractionwereceivedcalculatetheoutlinecentroid.Thenweobtainndotsattheoutlinecalculatingthenmalizeddistancesofthedotsweobtainedwiththecentroidthedista

5、ncesconstitutetheinputvect.IntrainingprocessweusekernelbasedFisherDiscriminationAnalysis(KFDA)methodtotraintheinputsamplevects.Themethodhasbeenusedinfacerecognitionhasbeendemonstratedbetterrecognitioncapabilitythanotherm

6、ethods(PCAKPCASVM).WecalculatetheoptimalsubspaceWoptoptprojectthesamplegaitsequencestoWWoptoptthengetthetracksofthesequencescalculatethetrackcentroidcalculatetheExemplarProjectionCentroidofthesequencesinthesameclasstheEx

7、emplarProjectionCentroidrepresentstheclasstemplate.TotesttheclassofagaitsequencewealsoprojectthetestsequencetotheeigenspacecalculatethetrackcentroidthencalculatetheEuclideanDistanceofthetestsequencetrackingcentroidwithth

8、esamplesequences’ExemplarProjectionCentroids.theclasswhichthetestsequencebelongstoistheonethatthesamplesequencewhichtheEuclideanDistanceisshtestbelongsto.Differentkernelfunctionsaretestedtheirresultsarecomparedinthispape

9、r.Afterpreliminaryexperimentthemethodthatweadopthasreachedgoodrecognitionresultincaseoflittlesample.Thisdemonstratesthefeasibilityofthemethodweadopt.Keywds:BackgroundSubtractionfeasureextractionKFDAKernelFunctionGaitReco