Accuracy Analysis and Validation of ZY-3’s Sensor Corrected Products
LIU Bin1, SUN Xi-liang1,2, DI Kai-chang1, LIU Zhao-qin1
1. Institue of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China;
2. Geometric College, Shandong University of Science and Technology, Qingdao 266590, China
Abstract：On the basis of the existing preliminary accuracy validations of ZY-3 satellite imagery, a further in-depth analysis and verification of the geopositioning accuracy were performed at a typical site with both flat and mountainous terrains. The rational polynomial coefficients (RPC) were refined through block adjustment with high accuracy GPS points as ground control points (GCP) and check points. Digital surface model (DSM) and digital ortho map (DOM) were automatically generated with the refined RPC, the planimetric and stereo geopositioning accuracies were evaluated, and the influences of terrain, number and distribution of GCPs were analyzed. The results show that the horizontal and vertical geopositioning accuracies of ZY-3 imagery of the test site are 1.476 m and 2.213 m respectively in the flat area, and 1.506 m and 2.895 m respectively in the mountainous area, all meeting the requirements of 1∶50 000 DEM and DOM production both in the flat area and mountainous area. The ZY-3 imagery can also be used for revision of the 1∶25 000 topographic maps.
刘斌, 孙喜亮, 邸凯昌, 刘召芹. 资源三号卫星传感器校正产品定位精度验证与分析[J]. 国土资源遥感, 2012, 24(4): 36-40.
LIU Bin, SUN Xi-liang, DI Kai-chang, LIU Zhao-qin. Accuracy Analysis and Validation of ZY-3’s Sensor Corrected Products. REMOTE SENSING FOR LAND & RESOURCES, 2012, 24(4): 36-40.
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2012, Vol. 24 
