资源描述：
《CVPR2005HuaHuang_Probabilistic Contour Extraction Using Hierarchical Shape Representation 》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、ProbabilisticContourExtractionUsingHierarchicalShapeRepresentation1,2212XinFanChunQiDequnLiangHuaHuang12SchoolofInformationEngineering,SchoolofElectronicsandInformationEngineering,DalianMaritimeUniversity,Xi’anJiaotongUniversity,Dalian,P.R.China.116026Xi’an,P.R.China.710049fanxin@dlmu.e
2、du.cn{qichun,huanghua}@mail.xjtu.edu.cnAbstractarebuiltfromstatisticallyanalyzingexamplesoftheshapesofinterest,namelystatisticalmodels[2,3,17].Inthispaper,weaddresstheissueofextractingRegardlessoftherepresentationofmodels,thecontouroftheobjectwithaspecificshape.Asolutiontotheproblemisfo
3、undbydeterministichierarchicalgraphicalmodelisproposedtorepresentoptimizationtechniquesinmostmodel-basedshapevariations.Acomplexshapeisdecomposedintoapproachestocontourextraction.In[4],DynamicseveralcomponentswhicharedescribedasPrincipalProgrammingisusedtofindagloballyoptimalmatch.Compo
4、nentAnalysis(PCA)basedmodelsinvariousInActiveShapeModels(ASM)proposedbyCootesetlevels.Thehierarchicalrepresentationallowsforal.[2],alocalminimumofthematchingenergyischain-likeconditionaldependencywithinasinglelevelfoundbasedongreedysearchinginlocalandbidirectionalcommunicationbetweendif
5、ferentneighborhoods.Whilethematchingisformulatedaslevels.Additionally,aSequentialMonte-Carlo(SMC)Bayesianestimationin[17],theproblemisresolvedbasedinferencealgorithmthatcanexploretheviaapyramidsearchingstrategy.AndCremersetal.graphicalstructureisproposedtoestimatethecontour.provideagrad
6、ientdescentschemefortheTheexperimentsperformedonreal-worldhandandminimizationofamodifiedMumford-Shahenergyfaceimagesshowthattheproposedmethodiseffectivefunctionalthatincorporatesstatisticalshapeincombatingocclusionandclutteredbackground.information[3].However,itisworthnotingthatthereMor
7、eover,itispossibletoisolatethelocalizationexistmultipleinconsistentinterpretationsofimageerrortoanindividualcomponentofashapeattributedfeaturesduetothecomplicationofnaturalscenes.tothehierarchicalrepresentation.Thus,itmightbeproblematictoperformasearchingprocedurealongonedirect
