测绘通报 ›› 2023, Vol. 0 ›› Issue (9): 64-69.doi: 10.13474/j.cnki.11-2246.2023.0266

• 学术研究 • 上一篇    下一篇

无人机与卫星影像匹配的相似性逼近算法

罗卿莉1, 张书缤1, 陈相1, 魏钜杰2   

  1. 1. 天津大学精密测试技术及仪器国家重点实验室, 天津 300072;
    2. 中国测绘科学研究院, 北京 100036
  • 收稿日期:2022-10-24 发布日期:2023-10-08
  • 作者简介:罗卿莉(1985—),女,博士,副教授,研究方向为摄影测量与遥感。E-mail:luoqingli@tju.edu.cn
  • 基金资助:
    城市轨道交通数字化建设与测评技术国家工程实验室开放课题基金(2021ZH04);天津市自然科学基金重点项目(21JCZDJC00670);天津市交通运输科技发展计划(2022-40;2020-02);国家自然科学基金(41601446;41801284)

A similarity approximation algorithm for matching UAV and satellite image

LUO Qingli1, ZHANG Shubin1, CHEN Xiang1, WEI Jujie2   

  1. 1. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;
    2. Chinese Academy of Surveying & Mapping, Beijing 100036, China
  • Received:2022-10-24 Published:2023-10-08

摘要: 针对现有算法在无人机与卫星影像具有较大空间分辨率差异时存在匹配正确率不高的问题,本文提出了一种无人机与卫星影像匹配的相似性逼近算法。该方法在匹配前对无人机影像进行高斯滤波处理,提高了无人机与卫星影像的尺度相似性,并最终提高了匹配算法的正确率。试验结果表明,该算法具有较高的匹配精度,适用于无人机与卫星影像空间分辨率差异较大时无人机影像的匹配与自主定位。

关键词: 无人机, 自主定位, 相似性逼近, 影像匹配

Abstract: The matching accuracy of the current algorithms is not high enough when UAV and satellite images have a large spatial resolution difference. In order to avoid it, a similarity approximation algorithm for matching UAV and satellite images is proposed. The algorithm applies Gaussian filtering to the UAV images before matching, improves the scale similarity between the UAV image and the satellite image, and finally improves the accuracy of the matching algorithm. Experimental results demonstrate it has high matching accuracy and it is suitable for UAV image matching and autonomous positioning when the spatial resolution difference between UAV image and satellite image is large.

Key words: UAV, autonomous positioning, similarity approximation, image matching

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