SfM摄影测量方法在活动构造定量研究中的应用

APPLICATION OF SFM PHOTOGRAMMETRY METHOD TO THE QUANTITATIVE STUDY OF ACTIVE TECTONICS

高精度、高分辨率的地形地貌数据是活动构造定量研究的基础。摄影测量方法的出现和快速发展为获取高精度地形地貌数据提供了一种经济有效的技术手段。相比于传统的测量方法,摄影测量方法可在大范围内同时进行,不受地面通视条件的限制,且测量成本相对较低。尤其近年来,随着计算机视觉理论及高效的自动特征匹配算法的发展,一种名为"Structure from Motion"(SfM)的三维重建技术被引入摄影测量方法中,极大地提高了摄影测量的自动化程度。文中介绍了摄影测量方法的基本原理及发展历程,并综述了摄影测量方法在活动构造研究中的应用,最后通过SfM摄影测量方法在活动构造研究中的1个具体应用实例,展示了摄影测量方法在活动构造定量研究中的巨大应用潜力。

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.