摘要
针对数字高程模型(DEM)对地表细部高度(高层建筑等)没有完全消除投影差的问题,研究人工引入视差,在正射影像基础上制作左右视差立体辅助影像,在立体正射影像对中量测地表细部高度信息,为实际应用提供解决方案。给出了试验结论,并对其量测精度进行了检测,所取得的立体正射影像对能够达到1∶10 000地形图中对高度量测的要求。
Due to the failure of the digital elevation model （DEM） to completely eliminate the projection difference of surface detail height e. g. skyscraper, the artificial introduction parallax was researched. Based on orthophotos,aided stereo images with horizontal parallax were created,the surface detail heights were measured in stereo orthophoto pairs,and the solution scheme was provided for practical applications. Final ly,the experimental conclusion of orthophoto pairs was presented and the precision of height mensuration was checked. The aided stereo image generated in this method fulfilled the requirements for height mensu- ration on 1 ： 10 000 topographic maps.
出处
《甘肃科学学报》
2015年第3期34-36,共3页
Journal of Gansu Sciences
关键词
斜平行投影
立体辅助影像
正射影像对
可量测性
Oblique parallel projection
Aided stereo image
Orthophoto pair
Scalability
作者简介
陈宏伟（1969-），男，陕西西安人，硕士，高级工程师。研究方向为摄影测量．E—mail：cbql203@126．com
通讯作者：武坚．E-mail：wj563563@163．com．
