基于棱镜的单目立体视觉匹配算法-研究

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1、万方数据东北大学硕士论文AbstractResearchofMonocularStereovisionmatchingAlgorithmBasedonPrismAbstractAtpresent，stereovisionisoneofthehottestresearchtopicsincomputervision．StereovisioniSadisciplinethatstudieshowtousemachinetoimitatehumanvision．andthentounderstandandrecognizethethree—dimensionalspac

2、e．ThetheoryofvisualcomputingwasproposedbyMarrinthe80’SintwentiethCentury．Thisbasictheorymakesstereovisionbecomeahotresearchincomputervision．Binocularstereovisionisaveryimportantbranchofcomputervision．However，inthepracticalapplication，traditionalbinocularstereovision’Slargesizeandhighc

3、ostleadtomonocularstereovisionbasedonprism．Comparedwiththetraditionalbinocularstereovisionsystem，thesinglecamerabasedontheprismhastheadvantagesofsmallersizeandlowercost．Stereomatchinghasalwaysbeenthemostimporlantinstereovisionandthemostdifficultprobleminstereomatching，anddirectlydeter

4、minesthequalityofthe3Dreconstruction．Afterdecadesofdevelopment，stereomatchinghasbeenstudiedbymanyresearchers．Thestereomatchingisthedepthinformationofthecorrespondingpointsintwoormoreimagestakeninthesanlespacescene．Becausethetraditionalstereomatchingismainlyforthebinocularstereovision，

5、comparedwiththetraditionalstereomatching，prismintroducedresultsthatstereomatchinghaschangedalittleintheprismMonocularStereoVisionSystem．Aimingattheproblemofstereomatchinginthesinglecamerastereovisionsystembasedonprism，thestereomatchingisimproved．Thelnainworkofthispaperis：Firstly，thege

6、ometryofthesinglecamerastereovisionisproposed，andtherelationshipbetweentheleftandrightimagesinMonocularStereovisionsystemispresented，therelationshipmodelisthefundamentalmatrix．Then，thefundamentalmatrixiscalculatedfromtheimagecoordinatesofthefeaturepointswhicharefewandaccurate．Secondly

7、，thefeaturepointsofthetwopansoftheimageareextractedbySIFTalgorithm，andthefeaturepointsarematchedwiththeEuclideandistance．Inordertoeliminatetheerrormatching，theSIFTfi：aturesoftheinitialextractionareselectedbyRANSAC，andthematchingpointsarefoundasfaraspossible．Thirdly，usingthesecondparto

8、fthec