测绘通报 ›› 2025, Vol. 0 ›› Issue (9): 126-130.doi: 10.13474/j.cnki.11-2246.2025.0920

• 学术研究 • 上一篇    下一篇

离岸海岛稀少控制倾斜摄影测量三维重建

曾翊城, 张一贺, 丁建勋, 李旺民, 李秀龙   

  1. 珠海市测绘院, 广东 珠海 519000
  • 收稿日期:2025-02-18 发布日期:2025-09-29
  • 通讯作者: 张一贺。E-mail:694162825@qq.com
  • 作者简介:曾翊城(1991—),男,硕士,高级工程师,主要研究方向为无人机摄影测量与点云处理。E-mail:1175366027@qq.com
  • 基金资助:
    珠海市社会发展领域科技计划(2320004000333)

3D reconstruction of offshore islands based on sparse controlled oblique photography

ZENG Yicheng, ZHANG Yihe, DING Jianxun, LI Wangmin, LI Xiulong   

  1. Zhuhai Institute of Surveying and Mapping, Zhuhai 519000, China
  • Received:2025-02-18 Published:2025-09-29

摘要: 针对离岸海岛地形复杂,坐标基准服务不足,海岛倾斜摄影测量中像控点布设及测量工作成本高、劳动强度大、风险系数高、工作效率低等问题,本文研究了一种通过稀少控制实现离岸海岛倾斜摄影测量的方法。该方法首先根据海岛面积和地形特点布设少量控制点,并基于CORS、无人机卫星定位和惯导数据,联合解算获取高精度飞行定位定姿数据;然后通过空三加密、影像匹配等技术,构建实景三维模型;最后以珠海市庙湾岛、牛头岛、蚊尾洲岛为试验案例,详细介绍了这一方法在海岛测量中的应用,精度检测表明,获得的成果符合大比例尺测图的精度要求。本文方法切实可行,为离岸海岛测量工作提供了一种有效思路和参考。

关键词: 离岸海岛, 实景三维, 无人机, 倾斜摄影测量, 稀少控制

Abstract: In order to solve these problems that the complex terrain and insufficient coordinate reference service of offshore islands,the layout and measurement of image control points in the oblique photogrammetry for offshore islands with high cost,high labor intensity,high risk coefficient and low work efficiency.This paper studies a method for achieving oblique photogrammetry of offshore islands through sparse control.Firstly,lay out a small number of control points according to the area and topographic features of each island and obtain high-precision flight data of position and orientation through the joint solution based on the CORS,GNSS and IMU data of unmanned aerial vehicles.Secondly,the 3D real model is constructed through technologies such as aerial triangulation and image matching.Finally,this paper provides a detailed introduction to the application of this method in island surveying taking Miaowan Island,Niutou Island and Wenweizhou Island in Zhuhai city as experimental cases.The obtained results,after being subjected to precision detection,have been confirmed to meet the accuracy requirements for large scale topographical mapping.This method is practical and feasible,providing an effective approach and reference for the surveying work on offshore islands.

Key words: offshore islands, real 3D, UAV, oblique photogrammetry, sparse control

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