Ortho-rectification software applicable for IKONOS high resolution images: GeoPixel-Ortho

Author

Chung-Hyun Ahn ; Cho, Seong-Ik ; Jeon, Jae Chun

Author_Institution

Image Process. Div., ETRI-Comput. & Software Technol. Lab, Taejon, South Korea

Volume

1

fYear

2001

fDate

2001

Firstpage

555

Abstract

GeoPixel-Ortho as a value-added processing module for generating ortho-rectified images in GeoPixel which is in-house remote sensing software, is introduced. To estimate sensor orientation parameters, a direct linear transform (DLT) method was implemented. The module was tested on an IKONOS scene over the south part of Seoul, Korea. The accurate location of ground control points (GCPs) was obtained by using GPS receivers. Although it was hard to evaluate highly reliable sensor parameters using the DLT model because of a 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 research on estimating more accurate sensor parameters to improve the performance of the DLT model will be done

Keywords

geophysical signal processing; image processing; parameter estimation; remote sensing; transforms; DLT method; GeoPixel; GeoPixel-Ortho; IKONOS high resolution images; Korea; Seoul; direct linear transform; ground control points; horizontal error; ortho-rectification software; ortho-rectified images; remote sensing software; sensor orientation parameters; sensor parameters; value-added processing module; Geographic Information Systems; Ground support; High-resolution imaging; Image generation; Image resolution; Image sensors; Remote sensing; Satellites; Software performance; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.976220

Filename

976220