APPLICATION OF SFM PHOTOGRAMMETRY METHOD TO THE QUANTITATIVE STUDY OF ACTIVE TECTONICS |
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| Authors: | BI Hai-yun ZHENG Wen-jun ZENG Jiang-yuan YU Jing-xing REN Zhi-kun |
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| Institution: | 1.State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China;2.Guangdong Provincial Key Laboratory of Geodynamics and Geohazards, School of Earth Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;3.State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China |
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| Abstract: | High-precision and high-resolution topographic data are the basis of quantitative study of active tectonics. The appearance and rapid development of photogrammetry method provide an economical and effective technical means for obtaining high precision terrain data. Compared with traditional measurement methods, the photogrammetry method can be carried out in a wide range without being limited by the ground visibility conditions, and the measurement cost is also relatively low. Especially in recent years, with the rapid development of computer vision theory and efficient automatic feature matching algorithm, a 3D reconstruction technique called "Structure from Motion"(SfM)was introduced into the photogrammetry method, greatly improving the automation of the photogrammetry method. This paper mainly introduces the basic principle and the development of photogrammetry method, and also summarizes the application of photogrammetry method in the study of active tectonics, and finally demonstrates the great application potential of photogrammetry method in the quantitative study of active tectonics by displaying a specific application example. |
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| Keywords: | photogrammetry method Structure from Motion(SfM) high precision terrain data active tectonics |
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