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Proceedings Paper

Accuracy analysis of remote sensing image rectification
Author(s): Weili Jiao; Bo Cheng; Wenqi Zhu; Wenyi Liu; Guojin He; Wei Wang; Xiaomei Zhang
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Paper Abstract

Position accuracy is the base of remote sensing image application. In this paper, the effect of the number, the distribution and the accuracy of ground control points (GCPs) and DEM in different scales for the image rectification is analyzed in detail. Quantitative evaluation of orthoimage is performed. The mathematical functions for calculating the position accuracy of the orthoimage are given based on different georeference information. The relation between the final accuracies of orthoimages and the accuracies of GCPs and DEM is analyzed based on the experiment results. It shows that accuracies of the checked orthoimages coincide with the calculated accuracies. The final accuracy can be estimated with the method described in this paper if the accuracy of control data is known. On the other hand, if the final accuracy of the orthoimage were determined, the least requirements for the accuracies of GCPs and DEM could be calculated by the mathematical functions.

Paper Details

Date Published: 24 November 2008
PDF: 7 pages
Proc. SPIE 7123, Remote Sensing of the Environment: 16th National Symposium on Remote Sensing of China, 712308 (24 November 2008); doi: 10.1117/12.815554
Show Author Affiliations
Weili Jiao, Ctr. for Earth Observation and Digital Earth (China)
Bo Cheng, Ctr. for Earth Observation and Digital Earth (China)
Wenqi Zhu, Ctr. for Earth Observation and Digital Earth (China)
Wenyi Liu, Ctr. for Earth Observation and Digital Earth (China)
Guojin He, Ctr. for Earth Observation and Digital Earth (China)
Wei Wang, Ctr. for Earth Observation and Digital Earth (China)
Xiaomei Zhang, Ctr. for Earth Observation and Digital Earth (China)


Published in SPIE Proceedings Vol. 7123:
Remote Sensing of the Environment: 16th National Symposium on Remote Sensing of China
Qingxi Tong, Editor(s)

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