Bulletin of Surveying and Mapping ›› 2021, Vol. 0 ›› Issue (9): 116-119.doi: 10.13474/j.cnki.11-2246.2021.0286

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Geomorphic features updating in small and medium scale by using high-resolution stereo mapping image

MA Yuanzheng1, DOU Guanxin1, LIU Yue1, WU Yanping2   

  1. 1. The Second Topographic Survey Team of the Ministry of Natural Resources, Xi'an 710054, China;
    2. The First Institute of Photogrammetry and Remote Sensing of the Ministry of Natural Resources, Xi'an 710054, China
  • Received:2021-01-25 Revised:2021-05-08 Online:2021-09-25 Published:2021-10-11

Abstract: Geomorphologic updating by using high-resolution stereo mapping satellite remote sensing image has great application potential in medium and small-scale geomorphic features updating because of its advantages of large coverage area and short updating period. In this paper, WorldView-2 and ZY-3 satellite images are respectively used to explore the technological process of small and medium scale geomorphic renewal based on high-resolution stereo mapping satellite images, and the experimental verification is carried out in different experimental areas. The results show that the proposed technical scheme can meet the accuracy requirements of 1:50 000 topographic map updating, and the updating efficiency is improved by about 25%.

Key words: stereo mapping satellite, high-resolution image, geomorphologic updating, digital elevation model

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