基于嫦娥一号CCD相机和激光测距数据的月球三维可视化系统  

Design and Implementation of Three-dimensional Visualization of the Moon Based on Chang'E-1 Data of CCD Camera and Laser Altimeter

作　　者：左维[1] 刘阳[2] 任鑫[1] 李春来[1] 

机构地区：[1]中国科学院国家天文台月球与深空探测科学应用中心,北京100012 [2]华北计算技术研究所地理信息与数据库研究室,北京100083

出　　处：《计算机辅助设计与图形学学报》2012年第1期37-42,49,共7页Journal of Computer-Aided Design & Computer Graphics

基　　金：绕月探测工程地面应用系统研制建设重大专项;国家"八六三"高技术研究发展计划(2008AA12A200)

摘　　要：嫦娥一号成功地获取了月球表面高分辨率和高清晰的地形和影像数据,为建立全月球三维场景的可视化提供了真实而丰富的数据源.通过分析大规模空间数据的三维可视化,介绍了所设计和实现的月球三维可视化系统的功能、体系结构和工作流程,并对系统的关键技术进行了重点讨论.实例结果表明,月球三维可视化系统在空间数据可视化建模、栅格数据和矢量数据的组织方式、极区数据的三维表现,以及数据的动态调度和三维场景的实时渲染技术等方面都有独特的解决方案,实现了全月球大规模数据的无缝组织、高效访问和无缝浏览.The high-resolution and high-definition terrain and image data of lunar surface were successfully collected by Chang＇E-l, which provides a real and rich data source for establishing three- dimensional visualization of the whole Moon. By analyzing key techniques of large-scale three- dimensional visualization of spatial data, this paper introduces the design and implementation of functions, structure and work flow of the moon＇s three-dimensional visualization system, and describes the system＇s key techniques in detail. The moon＇s three-dimensional visualization system has some unique solutions for the visual modeling of spatial data, organization mode of raster data and vector data, three-dimensional presentation of the polar region data, dynamic scheduling of data and real-time three-dimensional scene rendering techniques. It realizes the seamless organization, efficient access and seamless browsing of the large-scale data of the whole moon.

关 键 词：嫦娥一号 月球三维可视化 空间数字化模型 空间数据组织 数据调度 三维场景渲染 

分 类 号：P208[天文地球—地图制图学与地理信息工程] TP391[天文地球—测绘科学与技术]