| Technology and Methodology |
|
|
|
|
|
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.
|
| Keywords
muscovite
electron micprobe
chemical composition
diagnostic spectral feature
|
|
|
|
Issue Date: 13 November 2012
|
|
|
| [1] 国家测绘局卫星测绘应用中心.航天五院ZY-3卫星介绍[EB/OL].(2009-12-01)[2009-12-17].http://sasmac.sbsm.gov.cn/article/wxzh/200912/20091200059259.shtml.Satellite Surveying and Mapping Application Center.NASG,ZY-3 Satellite Introduction by China Academy of Space Technology[EB/OL].(2009-12-01)[2009-12-17].http://sasmac.sbsm.gov.cn/article/wxzh/200912/20091200059259.shtml.[2] 唐新明,张过,祝小勇,等.资源三号测绘卫星三线阵成像几何模型构建与精度初步验证[J].测绘学报,2012,41(2),191-198.Tang X M,Zhang G,Zhu X Y,et al.Triple Linear-array Imaging Geometry Model of Ziyuan-3 Surveying Satellite and Its Validation[J].Cehui Xuebao/Acta Geodaetica et Cartographica Sinica,2012,41(2):191-198(in Chinese with English Abstract).[3] 李德仁.我国第一颗民用三线阵立体测图卫星——资源三号卫星[J].测绘学报,2012,41(3),317-322.Li D R.China’s First Civilian Three-line-array Stereo Mapping Satellite:ZY-3[J].Cehui Xuebao/Acta Geodaetica et Cartographica Sinica,2012,41(3):317-322(in Chinese with English Abstract).[4] 张过.缺少控制点的高分辨率卫星遥感影像几何纠正[D].武汉:武汉大学,2005.Zhang G.Rectification for High Resolution Remote Sensing Image Under Lack of Ground Control Points[D].Wuhan:Wuhan University,2005(in Chinese with English Abstract).[5] Xiong Z,Zhang Y.A Generic Method for RPC Refinement Using Ground Control Information[J].Photogramm Eng Rem Sen,2009,75(9):1083-92.[6] Grodecki J,Dial G.Block Adjustment of High-resolution Satellite Images Described by Rational Polynomials[J].Photogramm Eng Rem Sen,2003,69(59-68).[7] GB 12340-2008-T 1∶25000 1∶50000 1∶100000地形图航空摄影测量内业规范[S].北京:中国标准出版社,2008.GB 12340-2008-T 1∶25000 1∶50000 1∶100000 Topographic Maps Aero-photogrammetry Inner Industry Norms[S].Beijing:China Standard Press,2008(in Chinese). |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2012,
Vol. 24
