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Conference Paper
Ortho-Rectification Software applicable for IKONOS high resolution images : GeoPixel-Ortho
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- Authors
- Chung-Hyun Ahn, Seong-Ik Cho, Jae Chun Jeon
- Issue Date
- 2001-07
- Citation
- International Geoscience and Remote Sensing Symposium (IGARSS) 2001, pp.555-557
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- The GeoPixel-Ortho as a value-added processing module for generating ortho-rectified images in GeoPixel which is in-house remote sensing software, will be introduced. To estimate sensor orientation parameters, Direct Linear Transform(DLT) method was implemented. The module was tested on a IKONOS scene over the south part of Seoul, Korea. The accurate location of Ground Control Points(GCPs) were obtained by using a GPS receivers. Although it was hard to evaluate highly reliable sensor parameters using DLT model because of lack of sensor related information, the overall accuracy of horizontal error on the test area was estimated to be between 1 and 2 pixels. Further researches on estimating more accurate sensor parameters to improve the performance of DLT model will be done.
- KSP Keywords
- Accurate location, High resolution images, Remote Sensing(RS), Sensor orientation, Sensor parameters, Value added, ground control points, highly reliable, linear transform, orientation parameters, overall accuracy