Acta Geodaetica et Cartographica Sinica ›› 2019, Vol. 48 ›› Issue (12): 1595-1603.doi: 10.11947/j.AGCS.2019.20190466

• Review • Previous Articles     Next Articles

Progress and future of image matching in low-altitude photogrammetry

CHEN Xiaoyong1, HE Haiqing1, ZHOU Junchao1, AN Puyang1, CHEN Ting2   

  1. 1. School of Geomatics, East China University of Technology, Nanchang 330013, China;
    2. School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
  • Received:2019-10-27 Revised:2019-12-05 Published:2019-12-24
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41861062;41401526);The Jiangxi Natural Science Foundation of China (Nos. 20171BAB213025;20181BAB203022);The Higher School Science and Technology Landing Project of Jiangxi Province (No. KJLD14049)

Abstract: Image matching is the process of obtaining corresponding points between two or more overlapping images by a specific algorithm. It is the critical step in the low-altitude photogrammetric data processing. The quality and efficiency of matching directly affect the subsequent data processing and the quality of mapping product generation. Therefore, image matching is one of the hot topics in the field of low-altitude photogrammetry and many relevant algorithms have been proposed. In this paper, the research status and prospect of image matching in low-altitude photogrammetry are described systematically. Firstly, the categories of image matching are summarized and can be generally divided into gray- and feature-based matching. We focus on feature-based image matching, e.g., point, line, and region-based features extraction and the relevant descriptors and similarity measures are described in detail. Besides, the latest image matching algorithms based on deep learning are listed, and the image matching methods involved in data fusion of various sensors on low-altitude platforms are mentioned.

Key words: image matching, low-altitude photogrammetry, feature extraction, deep learning

CLC Number: