标题：Verification of ZY-3 Satellite Imagery Geometric Accuracy Without Ground Control Points作者：Tang, Xinming; Zhou, Ping; Zhang, Guo; Wang, Xia; Jiang, Yonghua; Guo,Li; Liu, Shuhan
来源出版物：IEEE GEOSCIENCE AND REMOTE SENSING LETTERS卷：12期：10 页：2100-2104 DOI：10.1109/LGRS.2015.2450251 出版年：OCT 2015
摘要：The Ziyuan-3 (ZY-3) satellite was designed to satisfy 1: 50000 scale mapping requirements. This study uses 556 images obtained by ZY-3, from June 1 to October 31, 2013, covering an area of 3 500 000 km(2) in midwestern China. A total of 900 check points measured by a global positioning system were also used to conduct the planar accuracy verification. The experimental results show that the ZY-3 nadir sensor calibration images achieved a planar root mean square error (RMSE) of 10.8 m without the use of ground control points (GCPs). In addition, the verification of vertical accuracy employed 12 ZY-3 stereo image pairs distributed over an area of 14 000 km(2) around Taiyuan in the Shanxi Province of China, and a Digital Elevation Model with 0.5-m vertical accuracy was used for reference and validation. The vertical accuracy of forward interaction and stereo-extracted Digital Surface Model (DSM) from the stereo images were both validated without GCPs. The experimental results demonstrate that the overall vertical RMSE of the forward intersection was 6.58 m; it was 5.21 and 7.07 m for flat and mountainous terrain, respectively. Moreover, the overall vertical RMSE of DSM was 5.56 m; it was 4.37 and 5.69 m for flat and mountainous terrain, respectively. It can be seen from the experimental results of planar and vertical accuracy verification that ZY-3 imagery is able to satisfy the requirements of 1: 50000 topographic mapping in China without using GCPs.
入藏号：WOS:000359576400019
文献类型：Article
语种：English
作者关键词：Geometric accuracy, ground control points (GCPs), rational function model (RFM), Ziyuan-3 (ZY-3) satellite
扩展关键词：ADJUSTMENT; VALIDATION
通讯作者地址：Tang, Xinming; Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.
电子邮件地址：zhoup@sasmac.cn
地址：
[Tang, Xinming; Zhou, Ping] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.
[Tang, Xinming; Zhou, Ping; Wang, Xia; Guo, Li; Liu, Shuhan] Natl Adm Surveying Mapping & Geoinformat, Satellite Surveying & Mapping Applicat Ctr, Beijing 100044, Peoples R China.
[Tang, Xinming; Zhou, Ping] Jiangsu Ctr Collaborat Innovat Geog Informat Res, Nanjing 210023, Jiangsu, Peoples R China.
[Zhang, Guo; Jiang, Yonghua] Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Peoples R China.
研究方向：Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology
ISSN：1545-598X
eISSN：1558-0571
影响因子（2014）：2.095
