测绘通报 ›› 2017, Vol. 0 ›› Issue (11): 144-147.doi: 10.13474/j.cnki.11-2246.2017.0365

• “无人机测绘技术及应用论坛”论文精选 • 上一篇    下一篇

后差分技术及像控点密度对无人机摄影测量精度影响研究

陈鹏飞1, 胡海峰1, 廉旭刚1, 杜永军2   

  1. 1. 太原理工大学矿业工程学院, 山西 太原 030024;
    2. 中国能源建设集团山西省电力勘测设计院有限公司, 山西 太原 030001
  • 收稿日期:2017-07-13 修回日期:2017-09-18 出版日期:2017-11-25 发布日期:2017-12-07
  • 通讯作者: 廉旭刚。E-mail:lianxugang@tyut.edu.en E-mail:lianxugang@tyut.edu.en
  • 作者简介:陈鹏飞(1990-),男,硕士生,主要研究方向为开采沉陷与变形监测。E-mail:644439661@qq.com
  • 基金资助:
    国家自然科学基金(51574132)

On Influence of Post-processed Difference Technique and Image Control Point Density on UAV Photogrammetry Accuracy

CHEN Pengfei1, HU Haifeng1, LIAN Xugang1, DU Yongjun2   

  1. 1. School of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
    2. China Energy Construction Group Shanxi Electric Power Survey and Design Institute Co. Ltd., Taiyuan 030001, China
  • Received:2017-07-13 Revised:2017-09-18 Online:2017-11-25 Published:2017-12-07

摘要: 基于Inpho摄影测量软件对比分析后差分、单点定位的无人机影像数据,在密集像控点、稀疏像控点条件下的DOM精度及DEM精度。在1 km2的试验区布设68个像控点及检查点,通过调整参与计算的像控点数量及布设位置,采用检查点对生成的DOM及DEM精度进行验证。通过试验发现,基于后差分技术及对控制点的合理布设对无人机摄影测量成果精度的提高具有显著效果。本次试验,最高精度达到平面±4 cm,高程±9 cm。因此,后差分技术及合理像控点布设对于大比例无人机数字测图具有重要的意义。

关键词: 后差分, 像控点, 空三加密, Inpho, DEM, DOM

Abstract: Based on the Inpho photogrammetry software, the DOM precision and DEM precision of the UAV image data of post-processed difference and point positioning under the condition of dense image control points and sparse image control points are compared and analyzed. In the test area of 1 km2, 68 image control points and check points are laid. By adjusting the number and layout position of image control points of the involved calculation, the inspection points are used to verify accuracy of the generated DOM and DEM. Through the experiment, it is found that the accuracy of UAV photogrammetry results is improved remarkably based on the post-processed difference technique and the reasonable layout of the control points. In this experiment, the highest precision reaches the plane ±4 cm and the elevation is ±9 cm. Therefore, post-processed differencing technique and reasonable image control point layout are of great significance for large scale UAV digital mapping.

Key words: post-processed difference, image control point, aerial triangulation, Inpho, DEM, DOM

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