Geometric Accuracy Evaluation of High-Resolution Satellite Images Based on Xianning Test Field

Sensors

Qi Huang¹  Xiongwei Zheng²  Guo Zhang³  Jingjing Wang³  Taoyang Wang⁴ 

[1] Remote Sensing Center for Land and Resources, Beijing 100083, China;;China Aero Geophysical Survey &School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China;Shandong Institute of Geological Surveying and Mapping, Shandong 250011, China;

关键词: high resolution satellite images;    test field;    geometrical performance;    evaluation;    accuracy;   

DOI  :  10.3390/s18072121

来源: DOAJ

【 摘 要 】

The evaluation of geometric accuracy of high-resolution satellite images (HRSIs) has been increasingly recognized in recent years. The traditional approach is to verify each satellite individually. It is difficult to directly compare the difference in their accuracy. In order to evaluate geometric accuracy for multiple satellite images based on the same ground control benchmark, a reliable test field in Xianning (China) was utilized for geometric accuracy validation of HRSIs. Our research team has obtained multiple HRSIs in the Xianning test field, such as SPOT-6, Pleaides, ALOS, ZY-3 and TH-1. In addition, ground control points (GCPs) were acquired with GPS by field surveying, which were used to select the significant feature area on the images. We assess the orientation accuracy of the HRSIs with the single image and stereo models. Within this study, the geometrical performance of multiple HRSIs was analyzed in detail, and the results of orientation are shown and discussed. As a result, it is feasible and necessary to establish such a geometric verification field to evaluate the geometric quality of multiple HRSIs.

【 授权许可】

Unknown