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ID:40715102
大小:3.95 MB
页数:8页
时间:2019-08-06
《Efficient Point-Based Rendering Using Image Reconstruction》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、EurographicsSymposiumonPoint-BasedGraphics(2007)M.Botsch,R.Pajarola(Editors)EfficientPoint-BasedRenderingUsingImageReconstructionRicardoMarroquim1,MartinKraus2,andPauloRomaCavalcanti11UniversidadeFederaldoRiodeJaneiro,Brazil2TechnischeUniversitätMünchen,GermanyAbstractImage-spac
2、ereconstructionofcontinuoussurfacesfromscatteredone-pixelprojectionsofpointsisknowntopo-tentiallyofferanadvantageoustimecomplexitycomparedtosurfacesplattingtechniques.Weproposeanewalgo-rithmforhardware-acceleratedimage-spacereconstructionusingpull-pushinterpolationandpresentane
3、fficientGPUimplementation.Comparedtopublishedimage-spacereconstructionapproachesemployingthepull-pushinterpolation,ourmethodoffersasignificantlyimprovedimagequalitybecauseoftheintegrationofellipticbox-filtersandsupportfordeferredPhongshading.Forlargepoint-basedmodels,ourGPUimpleme
4、ntationiscapableofrenderingmorethan50Mpointspersecondincludingimage-spacereconstructionanddeferredshading.CategoriesandSubjectDescriptors(accordingtoACMCCS):I.3.3[ComputerGraphics]:BitmapandframebufferoperationsDisplayalgorithmsViewingalgorithms;I.3.7[ComputerGraphics]:Hiddenli
5、ne/surfaceremoval1.Introductionconsistingofmpixels,i.e.,itisindependentofthenumberofprojectedsplats.Point-basedgraphicshaveevolvedfromaspecializedtoolforparticlesystems[CHP∗79]tooneofthemostpower-Manyalternativepoint-basedrenderingtechniqueshavefulconceptsincomputergraphics.Inn
6、umerousapplications,beenpublishedintheliteratureonpoint-renderingtech-pointshavebeenproventobeasuitableprimitiveformodelniques.Oneofthebasicrequirementsforanysurfaceren-acquisition,processing,animation,andrendering[GP07].deringmethodisthereconstructionofcontinuoussurfacesInthis
7、work,wefocusonpoint-basedsurfacerenderingonwithoutholes.Whiletheseholesareavoidedbyasuffi-GPUs(graphicsprocessingunits).cientlyhighinitialsamplingrate[LW85],thissolutionisnotalwayspracticalorpossible.AnalternativeapproachTheperformanceofprogrammableGPUshasbeensuc-isthefillingofho
8、lesbyanimage-spacereconstructioncessfullyemployedforre
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