文章摘要
唐毅.改进高分辨率遥感影像测量断裂错动空间尺度的探讨研究[J].地震工程学报,2019,41(5):1274-1279,1373. TANG Yi.Measurement of the Spatial Scale of Fracture Dislocation through High-resolution Remote Sensing Images[J].China Earthquake Engineering Journal,2019,41(5):1274-1279,1373.
改进高分辨率遥感影像测量断裂错动空间尺度的探讨研究
Measurement of the Spatial Scale of Fracture Dislocation through High-resolution Remote Sensing Images
投稿时间:2018-01-17  
DOI:10.3969/j.issn.1000-0844.2019.05.1274
中文关键词: 高分辨率;遥感影像;活动断裂;空间尺度;测量分析
英文关键词: high-resolution;remote sensing images;active fault;spatial scale;measurement analysis
基金项目:2017年国家重大水专项:"十三五"技重大专项(2017ZX07205003)
作者单位
唐毅 苏州科技大学 环境科学与工程学院, 江苏 苏州 215009 
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中文摘要:
      为避免在进行高空遥感影像活动断裂空间尺度测量分析时采用较多的外业控制点,降低测量过程的繁琐性,提高测量精准度,提出利用空中三角测量的遥感影像空间定位方法。通过有理多项式系数模型精准表示平面坐标系中相应像点和地面点三维空间坐标之间的数学关系,选取活动断裂区域中重叠率较高(概率较高)的控制点,忽略其他控制点以减少外业控制点的需求量;以控制点地面坐标、像点坐标作为已知值,将活动断裂区域的地面坐标以及可以精确表达卫星影像物方的几何旋转关系的定向参数作为待定量,根据有理多项式系数模型的误差方程,以最小二乘为准则确定活动断裂区域的地面坐标,定位区域遥感图像主要活动断裂解译标志包括线性标志、垂直错动和水平错动标志;依据不同标志中的两侧色调反差、阴影色调以及扭曲变形程度,将活动断裂的活动性分成强、中、弱三个等级,实现对断裂空间尺度的分析。实验结果表明,该方法测量的空间尺度精准性较高,解译和判断的断层形态与实际相符。
英文摘要:
      To avoid the use of too many field control points in the spatial scale measurement and analysis of active faults using high-altitude remote sensing images, and to reduce the complexity of the measurement process and improve measurement accuracy, a spatial location method using remote sensing images from aerial triangulation is proposed. By accurately expressing the mathematical relationship between the three-dimensional space coordinates of the ground point and the corresponding image point in a planar coordinate system, control points with high overlap rates (high probability) in the active fault area were selected, and other control points were ignored to reduce the demand of field control points. Ground coordinates of control points and coordinates of image points were taken as known values, and orientation parameters, which accurately expressed the geometric rotation relationship of the object side of the satellite images, were taken as the unknown values. According to the error equation of the rational polynomial coefficient model, ground coordinates of the active fault area were determined by taking the least square as the criterion. The main active fracture interpretation marks of the remote sensing images in the positioning area included linear marks, vertical dislocation marks, and horizontal dislocation marks. Activity degree of active faults was divided into three grades:strong, medium, and weak. Experimental results showed that the spatial scale measured by this method was accurate, and interpretation and characterization of the fault morphologies were consistent with the actual scenario.
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