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http://dx.doi.org/10.22640/lxsiri.2016.46.2.183

A Study on the Geometric Correction Accuracy Evaluation of Satellite Images Using Daum Map API  

Lee, Seong-Geun (Department of Civil Engineering, Chonbuk National University)
Lee, Ho-Jin (Department of Civil Engineering, Chonbuk National University)
Kim, Tae-Geun (Department of Environmental Engineering, Cheongju University)
Cho, Gi-Sung (Department of Environmental Engineering, Cheongju University, RCIT)
Publication Information
Journal of Cadastre & Land InformatiX / v.46, no.2, 2016 , pp. 183-196 More about this Journal
Abstract
Ground control points are needed for precision geometric correction of satellite images, and the coordinates of a high-quality ground control point can be obtained from the GPS measurement. However, considering the GPS measurement requires an excessive amount o f t ime a nd e fforts, there is a need for coming up with an alternative solution to replace it. Therefore, we examined the possibility of replacing the existing GPS measurement with coordinates available at online maps to acquire the coordinates of ground control points. To this end, we examined error amounts between the coordinates of ground control points obtained through Daum Map API, and them compared the accuracies between three types of coordinate transformation equations which were used for geometric correction of satellite images. In addition, we used the coordinate transformation equation with the highest accuracy, the coordinates of ground control point obtained through the GPS measurement and those acquired through D aum M ap A PI, and conducted geometric correction on them to compare their accuracy and evaluate their effectiveness. According to the results, the 3rd order polynomial transformation equation showed the highest accuracy among three types of coordinates transformation equations. In the case of using mid-resolution satellite images such as those taken by Landsat-8, it seems that it is possible to use geometrically corrected images that have been obtained after acquiring the coordinates of ground control points through Daum Map API.
Keywords
Statistical GIS(SGIS); Open Platform; Server Architecture; Cloud; High Availability; Daum Map API;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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