<span>基于无人机遥感影像的地震形变场三维测量方法</span>-华南地震

文章信息/Info

Title:: The 3d Measurement Method of Seismic Deformation Field Based on UAV Remote Sensing Image

Author(s):: HE Jiale; Shandong University of Science and Technology，Qingdao 266590，China

Keywords:: Unmanned aerial vehicle (UAV); Remote sensing image; Earthquake; Deformation field; 3d measurement

摘要:: 在地震形变场的测量过程中使用传统的测量方法无法得到准确率较高的测量数据，为此利用无人机航空遥感影像技术，实现地震形变场的三维测量。首先对无人机的航行路线进行规划，保证得到较为完整的遥感影像。通过去云雾、匀色与裁边处理、畸变差校正和重叠区域去除处理四个步骤，实现初始图像的预处理。提取影像中的图像数据，对地震前后的地形变化进行定量分析，并解算出地震形变量。最终通过确定形变场平面形状和地震形变高度，确定三维测量数据结果。通过性能测试实验得出有关于测量准确率的实验结论：与传统的地震形变场测量方法相比，基于无人机遥感影像的地震形变场三维测量方法的平均测量准确率提升了4.38%，且测量的完整度更高。

Abstract:: In the process of seismic deformation field measurement，the traditional measurement method can not get the measurement data with high accuracy，so UAV aerial remote sensing image technology is used to realize three-dimensional measurement of seismic deformation field. Firstly，the navigation route of UAV is planned to ensure a relatively complete remote sensing image. The pre-processing of the initial image is realized through four steps: cloud removal，color leveling and edge cutting，distortion correction and overlap removal. The image data in the image are extracted，the terrain changes before and after the earthquake are quantitatively analyzed，and the seismic shape variables are calculated. Finally，the three-dimensional measurement results are determined by determining the plane shape of deformation field and the height of seismic deformation. Through the performance test experiment，the experimental conclusion about the measurement accuracy is drawn: compared with the traditional seismic deformation field measurement method，the average measurement accuracy of the three-dimensional measurement method of seismic deformation field based on UAV remote sensing image is 4.38% higher，and the measurement integrity is higher.