测绘通报 ›› 2019, Vol. 0 ›› Issue (1): 29-33.doi: 10.13474/j.cnki.11-2246.2019.0006

• 学术研究 • 上一篇    下一篇

利用特征组合检测算法的无人机遥感影像匹配研究

王晓红1,2, 何志伟2, 邓仕雄2, 曹留霞2, 李闯2   

  1. 1. 贵州大学林学院, 贵州 贵阳 550025;
    2. 贵州大学矿业学院, 贵州 贵阳 550025
  • 收稿日期:2018-04-17 修回日期:2018-06-12 出版日期:2019-01-25 发布日期:2019-02-14
  • 作者简介:王晓红(1970-),男,博士,副教授,主要研究方向为3S技术应用。E-mail:gzdxwxh@163.com
  • 基金资助:
    贵州省自然科学基金(黔科合J字[2014]2070);贵州省科技计划课题(黔科合LH字[2014]7649);贵州省研究生教育教学改革重点课题(黔教研合JG字[2015]010);贵州大学研究生重点课程建设项目(贵大研ZDKC[2015]008);贵州大学测绘科学与技术研究生创新实践基地建设项目(贵大研CXJD[2014]002)

Research on UAV remote sensing image matching using feature combination detection algorithm

WANG Xiaohong1,2, HE Zhiwei2, DENG Shixiong2, CAO Liuxia2, LI Chuang2   

  1. 1. College of Forestry, Guizhou University, Guiyang 550025, China;
    2. College of Mining, Guizhou University, Guiyang 550025, China
  • Received:2018-04-17 Revised:2018-06-12 Online:2019-01-25 Published:2019-02-14

摘要: 影像匹配是无人机遥感影像拼接和三维建模的基础和关键步骤。结合不同算法的优势,本文提出一种基于特征组合与RANSAC算法的无人机遥感影像匹配方法。该匹配方法首先采用AKAZE算法检测影像的特征点,然后利用SIFT描述符描述特征向量并获取特征点的主方向,最后基于单映射变换矩阵的RANSAC算法进行精准匹配。本文对基于特征组合与RANSAC算法的匹配效果进行了试验对比分析,试验结果表明:与常用匹配方法的匹配效果相比,本文的匹配方法继承了AKAZE算法的快速匹配能力,匹配总耗时介于AKAZE算法和SIFT算法之间,约为BRISK算法匹配耗时的20%;同时,该匹配方法继承了SIFT算法的多匹配点对性能,从整体匹配效果来看,本文的匹配方法优于AKAZE、SIFT、BRISK算法。

关键词: 影像匹配, 特征组合检测算法, RANSAC算法, 无人机遥感影像

Abstract: Image matching is fundamental to remote sensing image mosaic and 3D modeling using UAV remote sensing images.A fast matching method of UAV images based on feature combination and RANSAC algorithm is proposed in this paper.The matching method first uses the AKAZE algorithm to detect the feature points of the image,and then uses the SIFT descriptor to describe the feature vectors and obtain the main direction of these feature points.Finally,the accurate matching is made by the RANSAC algorithm based on the single mapping transformation matrix.In this paper,the writer has carried out the experimental comparison analysis on the proposed matching method and algorithms. And the results were shown as follows:the matching method proposed in this paper inherits the fast matching ability of the AKAZE algorithm,with a total matching time in the middle of that consumed by the AKAZE algorithm and the SIFT algorithm,which accounts for around 20% of the time needed using the BRISK algorithm.At the same time,this matching method inherits the performance of multiple matching points of the SIFT algorithm.From the overall matching effect,the matching method in this paper is superior to the AKAZE,SIFT and BRISK algorithms.

Key words: image matching, feature combination detection algorithm, RANSAC algorithm, UAV image

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