欢迎来到天天文库
浏览记录
ID:36358431
大小:3.29 MB
页数:106页
时间:2019-05-10
《数字城市三维景观再现系统的研究》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、天津大学博士学位论文数字城市三维景观再现系统的研究姓名:刘浩申请学位级别:博士专业:通信与信息系统指导教师:戴居丰20040501ABSTRACTThepresentthesismakestentativeresearchonhowtoachievethree’dimensionalreproducingofcitylandscapeonthebasisofremotesenseinformation.Thisresearchmakesacomprehensiveapplicationofmanytechniquessuchasmodelrecognitiontechniq
2、ue,OpenGLandvisualLispprogrammingtechnique,three-dimensionmodelsetting-uptechnique,virtualrealitytechniqueandtechnologyofvisualfrequencycomposition.Withthehelpofthesetechniques,theresearchhasrealizedthefollowingpurposes:thevectorprocessingofaerialphotographyandremotesenseinformation;therap
3、idstereoscopicautomaticproducingofplanpictures;thereproducingofthree-dimensionalcitylandscape.Thisthesispresentsmodelsetting-uptechniquesandmethodsofvariouscitythree-dimensionalsurfacemodelsOnthebasisofde印researchonmodelrecognitiontechniquetorecognizeandprocessremotesensepictures.Moreovert
4、histhesistouchesonthestudyanddevelopmentofrapidautomaticreproducingofthree-allmeusionallandscape,providingmethodstoformandstorevectordatatoreadthesedatathendrawthree-dimensionallandscapeanddemonstratetheselandscapesdynamically.ByusingsuchprogrammingimplementsasVC++andOpenGLtheauthorhassucc
5、eededinthestereoscopicdynamicdemonstrationofcitythree—dimensionallandsc印e.Consideringtheweaknessoftraditionalmethodofthree—dimensionreproducing,theauthoradvancesthemethodtoachievevirtualreproducingofthree-dimensionallandscapethroughvirtualrealitytechnique.Thismethodcomprisestheadvantagesof
6、suchtechniquesasdesktopvirtualrealitytechnique,three-dimensionalmodelreproducingofdigitalcitytechniqueandtowbuildingmodel—settingtechnique.Inaddition,itsynthesizessuchimplementsasAutoCAD,3DSMAXandPhotoshopandpromotestheflexibilityandconvenienceindynamicdemonstrationandmutualobservmionofcit
7、ythree—dimensionallandscape.1IAnothermethodintroducedbythethesisistheuseofvisual厅equencycompositioninachievingdynamicdemonstrationofcitythree-dimensionallandscapebasedonvectorinformation.Thismethodappliescomputerthree-dimensionanimationtechniquetodearlyshowthe
此文档下载收益归作者所有