基于CORONA像对的活动构造变形参数定量提取

为了高效提取活动构造研究的定量参数, 利用美国解密的2 m分辨率CORONA KH-4B卫星立体像对, 实现了在JX4C数字摄影测量系统的立体测图, 并通过影像匹配的方法建立数字高程模型(DEM)和数字正射影像(DOM).通过以上方法, 以南天山库车冲断褶皱带为例, 利用覆盖该区的影像, 识别由活动断层和活动褶皱造成的第四纪沉积物的变形, 提取地表变形参数, 结合地震资料和野外测量, 分析地表变形特征的深部构造机理.结果表明, 经过处理的CORONA KH-4B像对可以在数字摄影测量系统下矢量测图, 相对定向精度在0.01 mm左右, 绝对定向精度在10 m左右.测量精度能够满足活动构造定量分析所需.该方法在地势复杂、人迹罕至区域研究中更具优势. 

Quantitative Extraction of Deformation Parameters of Active Tectonics Based on CORONA Stereo Pairs

In order to efficiently extract quantitative parameters in active tectonics research,JX4C digital photogrammetric system has been used to found stereo model based on CORONA KH-4B stereo pairs with 2 m resolution,which were declassified in 1995 by USA for scientific purpose.Meanwhile,large scale digital elevation model (DEM) and digital orthophoto mapping (DOM) have been formed.These processing techniques are applied in a case study of the Kuqa fold-and-thrust belt in southern Tianshan,China,to quantitativel...