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基于遥感数据的重点目标区三维重建系统及其关键技术研究

【作者】 阎晓东

【导师】 张永生;

【作者基本信息】 中国人民解放军信息工程大学 , 摄影测量与遥感, 2002, 硕士

【摘要】 基于遥感数据的三维重建技术是当前数字摄影测量、遥感和地理信息系统等领域的重要研究方向。本文结合城市区域三维几何重建的工作,对基于遥感数据的重点目标区三维重建系统的建立和系统设计进行了研究。 在总结当前计算机三维建模技术的基础上,对基于几何造型的三维建模技术进行了研究。首先对利用摄影测量观测成果的CAD建模方法—Photogrammetry/CAD几何建模法进行了探讨,在此基础上实现了基于3DS MAX的三维场景建模工具VRMS。通过此工具可以实现对三维场景建模效果的实时浏览,实验证明该工具可以改善传统CAD建模低效、缺乏精度控制的缺点,可以应用于大面积城市区域几何模型的构建。接着利用此工具生成的城市区域三维场景模型对VRML&GeoVRML技术实现城市三维景观可视化的方案进行了验证。最后对基于遥感数据重点目标区三维重建系统的总体框架结构和其它关键技术进行了论述。

【Abstract】 The research on 3D reconstruction based on remote sensing data has become one of the focuses in the field of Digital Photogrammetry, Remote Sensing and Geographic Information System.Combined with reconstruction of cybercity , this thesis studies how to build such a system.After summarizing most 3D modeling technologies ,the thesis lay emphasis on the 3D modeling methods using geometric modeling.Firstly, it discusses the new way of CAD geometric modeling-Photogrammetry/CAD, that means modeling with photogrammetry fruit. It also develops a modeling tool (VRMS) in 3DS MAX environment, through which can users browse the result dynamically. It proved to be efficient and accurate compared with traditional CAD modeling methods that lack of precision control .The tool can be used to build large area cybercity.Secondly ,the thesis give some experiments on modeling cybercity with VRML/GeoVRML using the data produced by VRMS.Lastly, it also discussed the main frame and the other key technologies of build 3D reconstruction system based on remote sensing data.

  • 【分类号】P237
  • 【下载频次】225
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