基于正射影像的地形双模立体景观构建方法  

A Method of Building Dual Mode Stereo Terrain Scene Based on Orthophoto

作　　者：周杨[1] 滕飞[1,2] 徐青[1] 戴晨光[1] 

机构地区：[1]信息工程大学地理空间信息学院 [2]68011部队

出　　处：《测绘科学技术学报》2013年第2期162-167,共6页Journal of Geomatics Science and Technology

摘　　要：在基于正射影像的立体辅助影像制作方法和海量三维地形可视化等关键技术的研究基础上,综合虚拟三维地形和立体像对三维地形的优点,提出了一种新的双模式三维地形景观构建和显示方法。该方法利用正射影像、立体辅助影像和数字高程模型(DEM)等基础数据,生成基于正射立体像对的真三维立体景观和基于正射影像、DEM的虚拟三维地理景观有机结合的双模三维立体环境,在统一的数据组织、调度和景观漫游引擎的驱动下实现了两种三维场景的动态漫游、无缝切换和数据互联。The key technologies of the generation of stereo assistant images based on orthophoto and visualization of huge data terrain were researched in this paper. A construction and display method for dual mode 3D terrain scene was proposed by using virtual 3D terrain and stereo image pairs. Based on the actual 3D terrain scene with ortho stereo pairs and the virtual 3D landscape with DEM and orthophoto, the dual mode 3D stereo environment having the merits of both true 3D stereo scene and virtual 3D terrain scene is generated. By the driving of data manage- ment and 3D scene roaming engine, the real-time roaming, seamless switch and data exchange can be realized in dual mode 3D stereo environments.

关 键 词：三维地形景观 立体辅助影像 立体正射影像对 人工视差 双模式立体 

分 类 号：P231[天文地球—摄影测量与遥感]