作者:Ma, ZL (Ma, Zhenling)[ 1 ] ; Wu, XL (Wu, Xiaoliang)[ 2 ] ; Yan, L (Yan, Li)[ 3 ] ; Xu, ZL (Xu, Zhenliang)[ 4 ]
SENSORS
卷: 17期: 2
DOI: 10.3390/s17020240
出版年: FEB 2017
摘要
With the development of space technology and the performance of remote sensors, high-resolution satellites are continuously launched by countries around the world. Due to high efficiency, large coverage and not being limited by the spatial regulation, satellite imagery becomes one of the important means to acquire geospatial information. This paper explores geometric processing using satellite imagery without ground control points (GCPs). The outcome of spatial triangulation is introduced for geo-positioning as repeated observation. Results from combining block adjustment with non-oriented new images indicate the feasibility of geometric positioning with the repeated observation. GCPs are a must when high accuracy is demanded in conventional block adjustment; the accuracy of direct georeferencing with repeated observation without GCPs is superior to conventional forward intersection and even approximate to conventional block adjustment with GCPs. The conclusion is drawn that taking the existing oriented imagery as repeated observation enhances the effective utilization of previous spatial triangulation achievement, which makes the breakthrough for repeated observation to improve accuracy by increasing the base-height ratio and redundant observation. Georeferencing tests using data from multiple sensors and platforms with the repeated observation will be carried out in the follow-up research.
关键词
作者关键词:geometric positioning; satellite images; repeated observation; new images; without GCPs
KeyWords Plus:STEREO-IMAGES; ACCURACY
作者信息
通讯作者地址: Ma, ZL (通讯作者)
| Shanghai Ocean Univ, Shanghai Engn Res Ctr Hadal Sci & Technol, Res Ctr Ocean Mapping & Applicat, Coll Marine Sci, Shanghai 201306, Peoples R China. |
地址:
| [ 1 ] Shanghai Ocean Univ, Shanghai Engn Res Ctr Hadal Sci & Technol, Res Ctr Ocean Mapping & Applicat, Coll Marine Sci, Shanghai 201306, Peoples R China |
[ 2 ] Commonwealth Sci & Ind Res Org CSIRO DATA61, Wembly, WA 6014, Australia | |
| [ 3 ] Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Peoples R China |
[ 4 ] China Ctr Resources Satellite Data & Applicat, Beijing 100094, Peoples R China |
电子邮件地址:zlma@shou.edu.cn; Xiaoliang.Wu@csiro.au; lyan@sgg.whu.edu.cn;xuzhenliang@pku.edu.cn
基金资助致谢
基金资助机构 | 授权号 |
National Natural Science Foundation of China | 41271456 |
出版商
MDPI AG, ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND
类别/分类
研究方向:Chemistry; Electrochemistry; Instruments & Instrumentation
Web of Science类别:Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
文献信息
文献类型:Article
语种:English
入藏号: WOS:000395482700024
ISSN: 1424-8220
期刊信息
· Impact Factor (影响因子): 2.033
