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1、文贡坚等:基于视差点的大遮挡检测和立体匹配方法7171基于视差点的大遮挡检测和立体匹配方法摘要：早期的影像匹配算法主要是针对于小比例尺的影像,在这种情况下,物体之间的遮挡问题...且该导数值不等于1或,我们称这类点为平滑视差点;第2类点是它的左导数不等于...关键词：算法,导类别：专题技术来源：牛档搜索（Niudown.COM） 本文系牛档搜索（Niudown.COM）根据用户的指令自动搜索的结果，文中内涉及到的资料均来自互联网，用于学习交流经验，作品其著作权归原作者所有。不代表牛档搜索（Niudown.COM）赞成本文的内容或立场，牛档搜索（Niudow
2、n.COM）不对其付相应的法律责任！文贡坚等:基于视差点的大遮挡检测和立体匹配方法717基于视差点的大遮挡检测和立体匹配方法*文贡坚+,周秀芝(国防科学技术大学电子科学与工程学院ATR重点实验室,湖南长沙410073)StereoMatchingandLargeOcclusionDetectionBasedonDisparityPointsWENGong-Jian+,ZHOUXiu-Zhi(ATRKeyLaboratory,SchoolofElectronicScienceandEngineering,NationalUniversityofDefenseT
3、echnology,Changsha410073,China)+Correspondingauthor:Phn:+86-731-4576343,E-mail:wengongjian@sina.com,http://www.nudt.edu.cnReceived2004-04-07;Accepted2004-07-06WenGJ,ZhouXZ.Stereomatchingandlargeocclusiondetectionbasedondisparitypoints.JournalofSoftware,2005,16(5):708-717.DOI:10.136
4、0/jos160708Abstract:Analgorithmbasedondisparitypointstosolvetheocclusionproblemintheprocessofbuildinghigh-qualitystereodisparitymapispresentedinthispaper.Itisfirstlyprovedthatthedisparitycurvecorrespondingtoapairofepipolar-lineimagesmaybeapproximatedbyagroupofpiece-wisestraightline
5、s,andthenthedefinitionofdisparitypointisintroduced.Intheparameterizationofadisparitypoint,twoparametersareusedtodescribeleftandrightocclusionssothattheocclusionproblemcanbesuccessfullysolvedintheapproach.Byanalyzingintensitypropertyofadisparitypointanditsneighborpoints,anapproachwh
6、ichcombinesstepwisehypothesis-verificationstrategyandMarquardt-Levenberg(M-L)algorithmisdevisedtoextractthecandidatedisparitypointsfromtheepipolarimages,andthenaperiodicdynamicprogrammingisemployedtosearchtheepipolar-optimaldisparityfunction.Theproposedmethodistestedbyusingtheinter
7、nationalstandardimagedataandcomparedwithothermethods,andtheexperimentalresultsshowthatitsperformanceisthebestamongepipolar-optimalmethodsandworsethansomeexcellentglobal-optimalapproaches,butitscomplexityismuchlowerthantheglobal-optimalapproaches.Keywords:stereomatching;occlusiondet
8、ection;epipolar-optimal;hy
