无人机影像自动空三转点的若干关键技术研究

Several Key Technologies Study on Automatic Tie Point Transferring for UAV Images

无人机低空摄影测量鉴于其具有不可替代的优势,目前已经广泛地应用于各种测绘工作中。空三转点是整个无人机影像处理的一个较为关键的环节,本文首先分析了由于无人机影像的一些特点给自动空三转点所带来的一些处理上的瓶颈问题,在此基础上,结合计算机视觉中优秀的视觉几何算法,对空三转点中一些关键技术以及工作流程进行了研究,从而提出了一种POS数据辅助下的不需要人工干预的一键式全自动无人机影像空三转点方法,并取得了良好的试验结果。

Due to the irreplaceable advantages, the low-altitude UAV photogrammetry has been widely used in a variety of surveying and mapping works. For the whole processing,the tie point transferring is very important.This paper firstly analyzes some bottlenecks and problems in the UAV images automatic tie point transferring, then with the combination of some outstanding visual geometric algorithm in computer vision,several key technologies have been studied.Thus, an one-button fully automatic POS-data supported tie point transferring method for UAV images was proposed. Finally, a good experimental result was reached.