基于均值漂移和偏微分方程的目標(biāo)跟蹤算法研究.pdf

1、黑龍江大學(xué)碩士學(xué)位論文基于均值漂移和偏微分方程的目標(biāo)跟蹤算法研究姓名：肖莉娟申請學(xué)位級別：碩士專業(yè)：計算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：李培華20090528黑龍江大學(xué)碩士學(xué)位論文AbstractObjecttrackingisallimportantresearchtopicinthecomputervisionwhichcombinestheadvancedtechniquesandresearchresultsinthefieldsofima

2、geprocessing，pattemrecognitionmachinelearning，optimizationtheoryandPartialDifferentialEquation(PDE)，andhaswidespreadapplicationsinvisualsurveillance，roboticnavigationmilitarysurveillance，tra伍cdetectionandmedicalimageanal

3、ysisThethesisprimarilystudiesobjecttrackingalgorithmsbasedonMeanShiRandPartialDifferentialEquationThetraditionalMeanShifttrackingmethodisactuallyagradientbasedalgorithm，whichfailstoconsiderthesecond—orderinformationofthe

4、objectivefunctionThethesisexploitsthesecondorderinformation(HessianMatrix)andintroducestheNewtonmethod，NewtonmethodwiththestepandTrustRegionmethodforimprovingthetrackingperformanceInordertotracktheobject謝tllcomplextransf

5、ormations，thethesisproposestheMeanShiftbasedtrackingalgorithmtohandleobjects、析mtheaffmemotionbasedonsingularValueDecompositionandoptimizationtheory；inasimilarwaytheMeanShiftbasedalgorithmisintroducedtofollowtheobjcots、珩m

6、thesimilaritytransformationFordecreasingthetrackingspeed，aparallelMeanShiftalgorithmisproposedThismethodpartitionstheobjectcolorspaceusingmixtureofGaussiansbasedonKMeansclustering，andintroducesparallelalgorithmsforcomput

7、ingthehistogramandtheMeanShiftvectorTofollowtheobjectswimcomplexboundariesorwithhighlynonlinearmotionthethesispresentstheobjecttrackingmethodbasedonthepartialdifferentialequationAfunctionalisintroducedbasedonJensenShanno

8、ndivergencethatmeasuresthemodelsimilarityandthepartialdifferentialequationisderivedbyusingtheshapederivativeorthevariationcalculustominimizethefunctionalThelevelsetalgorithmisusedtosolvethePDEtoobtaintheobjectcontourKeyw