基于立体视觉的三维服装图像生成技术

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1、西安工程大学学报JournalofXi’allPolytechnicUniversity第23卷第2期(总96期)2009年4月VoL23，No．2(Sum．No．96)ArticleID：1671-850X(2009)02-0423-06Stereovisionfor3DclothingimagegenerationXUBu—gao，YUWu—rong(SchoolofHumanEcology，UniversityofTexasatAustin，Austin，TX78712，USA)Abstract：Thispaper

2、presentsanewlydevelopedstereovisionsystemforgenerating3Dimagesofgar-meritsattiredbyasubjectoronamannequin，3Dclothingimagesprovidemorerealisticandeffectivevisualizationforshowingclothing’8style，drape，andfitthan2Dimages．Thesystemconsistsoffouri-denticalimagingunits

3、thatcanbereconfiguredtocoverthetop，bottomorentirebody．Eachunitcon-tainsapairofdigitalcamerasandaprojecfor．Thecamerascapturetwoimagesfromdifferentperspec—fives，andtheprojectorcreatesartificialtextures"ontotheclothingsurfacethathelptoreducestereomatchingambiguity．A

4、two-phasealgorithmWasdevelopedtopermitsub—pixel，densestereomatching．Inthefirstphase，theforeground(garment)issegmentedbyusingapredefinedvirtualinterfaceinthedisparityspaceimage．andacoarsedisparitymapisgeneratedwithblockmatching．Inthesecondphase，localleastsquaresma

5、tchingisperformedalongwithglobaloptimizationwithinareguhrizationframeworkwhichensuresbothaccuracyandreliabilityof3Ddatageneration．Theunorganizeddatacloudsaretheprocessedbyasurfacemodelingalgorithm，whichisbasedonatriangularmesh，surfacesubdivisionandoptimization，to

6、reconstructsmoothandcompleteaclothingsurface．Keywords：garment；stereovision；3DimageCLCnumber：弱941．17Documentcode：A0IntroductionBodyscanningtechnologyhasbeenwidelyusedforsizesurvey，apparelmasscustomization，andfitanaly—sis．Thededicatedbodyscanningsystemsutilizevario

7、usdistancesensingtechniquestoproduce3Dsurfacesofasubjectandextractgeometricmeasurementsneededforspecificapplications．Thesetechndquesincludestructurelighttriangulation⋯，phase-shiftingprofilometry，moir6fringes，infraredposition—sensitivedetectorsandstereo·photogramm

8、etry．Commerciallyavailable号cann筋弓differinresolution，speed，size，price，andoutput，andthushavedifferentlevelsofacceptancefromtlleindustry．Bodyscannerswereusedtosca