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1、第3期电子学报Vol.41No.32013年3月ACTAELECTRONICASINICAMar.2013视差式立体信息采集、感知几何模型及舒适观看区研究综述侯春萍,袁万鑫,沈丽丽(天津大学电信学院,天津300072)摘要:近年来,立体影视产业蓬勃发展,基于视差的立体成像技术成为市场主流.但是,基于视差的立体成像技术存在深度畸变、视觉不舒适等问题.针对这些问题,本文研究了立体视频系统几何模型与舒适观看区.首先,总结并比较了立体采集系统的各种配置模式;接着讨论了平移式立体系统中拍摄空间到感知空间的映射关系,即畸变模
2、型,并用形状、深度畸变因子解释了木偶剧效应和纸板效应;然后分析了舒适观看区,对其三种定义做了比较,并基于o国际上普遍采用的1视差计算得出了舒适观看区域的几何范围;最后,本文将畸变模型和舒适观看区相关联,总结了立体图像拍摄应遵守的基本准则.关键词:立体系统;畸变模型;木偶剧效应;纸板效应;舒适观看区;立体拍摄规则中图分类号:TP391.41文献标识码:A文章编号:0372-2112(2013)03-0561-09电子学报URL:http://www.ejournal.org.cnDOI:10.3969/j.issn
3、.0372-2112.2013.03.024TheAcquisition,PerceptionGeometricModelandtheComfortableViewingZoneinStereoscopicVideoSystem:AReviewHOUChun-ping,YUANWan-xin,SHENL-ili(SchoolofElectronicandInformationEngineering,TianjinUniversity,Tianjin300072,China)Abstract:Withthepros
4、perityofstereoscopicindustry,thedisparity-basedstereoscopictechnologybecomesmoreandmorepopular.Butthistechnologymaybringviewingdiscomfortandvariousimagedistortionssuchasdepthplanecurvature,depthnon-linearityandsoon.Toanalyzetheorigins,characteristicsandrelati
5、onsoftheseperceptualissues,weinvestigatedthestereoscopicdistortionmodelandthecomfortableviewingzone.Thispaperfirstsummarizedandcomparedthreedifferentconfigurationsofthedisparity-basedstereoscopicvideocapturingsystems,andfocusedontheparallelconfigurationsystem
6、.Thegeometryofstereoscopiccameraanddisplaysystemswaspresented.Themappingrelationship,knownasthedistortionmodel,betweenthecameraspaceandtheviewingspacewasdiscussedintheparalle-lshiftingstereoscopicvideosystems.Thisdistortionmodelisthebasisofthestereo-scopicinf
7、ormationprocessing.Theshapedistortionfactorandthedepthfactorwereemployedtoexplainthepuppettheatereffectandthecardboardeffect.Thecomfortableviewingzonewasconsideredtoreducetheproblemofvisualdiscomfortandvisualfa-tigue.Itsthreedifferentrepresentationswerecompar
8、edbothqualitativelyandquantitatively.Atlast,thedistortionmodelandthecomfortableviewingzonewerecombinedtodrawaconclusionofthestereoscopicshootingrules.Keywords:stereoscopicsystem;distortio
