Bulletin of Surveying and Mapping ›› 2023, Vol. 0 ›› Issue (8): 40-44,56.doi: 10.13474/j.cnki.11-2246.2023.0229

Previous Articles     Next Articles

Micro geomorphic interpretation and extraction of quantitative topographic parameters with the help of tilt photogrammetry

LI Mengdi1, ZHANG Rui2, TANG Hongtao3   

  1. 1. HenanVocational College of Water Conservancy and Environment Department of Civil Engineering, Zhengzhou 450008, China;
    2. Natural Resources Bureau of Xinjiang Yili Kazak Autonomous Prefecture, Yili 835000, China;
    3. The Second Monitoring and Application Center, China Earthquake Administration, Xi'an 710054, China
  • Received:2022-09-26 Revised:2023-05-26 Published:2023-09-01

Abstract: The field work of traditional geological exploration is not only time-consuming, but also brings more cumbersome field workload to geologists. Using tilt photogrammetry and three-dimensional real scene modeling technology, the digital achievements such as 3D model, DOM and DSM with high resolution and covering an area of about 20 km2 and 3.39 cm in the north foot of West Kunlun Mountain in Xinjiang are constructed, and their accuracy is evaluated. In addition, slope map of the study area are derived based on the DSM data. With the help of the high-precision digital results, the micro geomorphic interpretation of the geological structure of the study area is carried out, and the vertical fault quantities of the two large terrace scarps inside are accurately extracted. The successful application of this tilt Photogrammetry in geological exploration shows that this technology can greatly reduce the field workload of geologists and improve the efficiency. It has broad application prospects in the fields of geological survey, topographic micro geomorphic interpretation and quantitative parameter extraction, and provides a strong technical support for geologists.

Key words: tilt photogrammetry, accuracy evaluation, geological exploration, geomorphic interpretation, quantitative parameters

CLC Number: