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为了高效提取活动构造研究的定量参数,利用美国解密的2m分辨率CORONAKH-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CORONAKH-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0.01mm左右,绝对定向精度在10m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.
In order to extract the quantitative parameters of the active tectonics efficiently, the stereoscopic map of the JX4C digital photogrammetry system was realized by using the 2 m-resolution CORONAKH-4B satellite stereo pair image decrypted by the United States. The digital elevation model (DEM) was established by image matching ) And digital orthomagnetism image (DOM) .Through the above method, taking the Kuqa thrust belt as an example, the deformation of the Quaternary sediments caused by the active faults and active folds is identified by the images covering this area, The surface deformation parameters were extracted and combined with seismic data and field measurements to analyze the deep tectonic mechanism of surface deformation.The results show that the processed CORONAKH-4B image pairs can be measured by digital photogrammetry system with the relative orientation accuracy of about 0.01mm , The absolute orientation accuracy is about 10m, and the measurement accuracy can meet the needs of the quantitative analysis of the active tectonics.The method has more advantages in the study of complex terrain and inaccessible regional studies.