Bulletin of Surveying and Mapping ›› 2019, Vol. 0 ›› Issue (12): 40-44.doi: 10.13474/j.cnki.11-2246.2019.0383

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ICP image matching technology considering distorted image edge

GAO Li1,2,3, JIN Fei1, JIANG Zhenzhi2,3, WANG Fan1, RUI Jie1   

  1. 1. Information Engineering University, Zhengzhou 450052, China;
    2. Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China;
    3. State Key Laboratory of Geo-information Engineering, Xi'an 710054, China
  • Received:2019-10-22 Revised:2019-11-01 Published:2020-01-03

Abstract: Matching technology is an important basic technology in remote sensing image processing. The difference between radiation and geometric information of images seriously interferes with similar feature matching between images. This paper proposes an algorithm of ICPDI for large difference images. Firstly, it improves the parameter setting method of the Canny operator for selecting the long edge of the image as a prominent feature of image matching. Then, it takes the distance between line features as the similarity evaluation standard for achieving the purpose of suppressing local differences by using global similar features. Finally, it adds a deformation function to the edge of the image for extending the scope of ICPDI matching technology. The accuracy and adaptability of the proposed method are verified by matching experiments between different types of remote sensing images.

Key words: image edge, effective matching features, vector deformation function, distance between vectors, iterative closest point

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