摘要
针对利用DSM进行正射纠正引起的遮挡、重影等问题，提出一种优化的真正射影像遮挡检测算法。该方法借鉴角度检测法的扫描方式和射线追踪法的思想，在遮挡检测过程中加入三个判别准则，提高了执行效率。此外，利用相邻影像的最佳对应像素，实现了对遮挡区域的补偿。
An optimized method for occlusion detection of true orthophoto was proposed to so!ve the occlusion and shadow problems caused by using DSM in ortho rectification. It adopted the idea of scanning in angular detection and the method of radial tracing, and added three discriminatory criteria to the occlusion detection process, which im- proved the efficiency of execution. The compensation for occlusion area can be realized with Optimum corresponding pixels of adjacent images.
出处
《测绘科学与工程》
2012年第3期13-17,共5页
Geomatics Science and Engineering
关键词
真正射影像
遮挡检测
遮挡补偿
true orthophoto
occlusion detection
occlusion compensation
