KOMPSAT-EOC SENSOR MODEL ANALYSIS
Kiin BANG and Prof. Woosug CHO, Korea
Key words: KOMPSAT, Sensor Model, Collinearity
Equation.
Abstract
In recent years, many countries have been giving special interest
on space program, especially multipurpose high resolution and
hyperspectral satellite. As one of national space programs in Korea,
the first Multi-Purpose Satellite 1 (KOMPSAT-1) was launched on
December 1999 and carried out its own mission. The EOC
(Electro-Optical Camera) is the primary payload for KOMPSAT-1. The
main mission of EOC is to provide the stereo images for the production
of topographic maps of Korean territory. An essential element in
capturing geospatial information through satellite imagery is to
establish accurate sensor model. There have been so many researches on
satellite camera model. In general, camera model for satellite imagery
could be categorized into three groups: physical, semi-physical and
mathematical models. The semi-physical model could be collinearity
model or extended collinearity model. In this study, we developed ten
different sensor models for KOMPSAT-EOC and applied to stereopair for
analyzing their behaviors. The satellite sensor models, which were
extended from collinearity condition equations, were developed and
then the behavior of each sensor model was investigated. The satellite
sensor models were represented by the six exterior orientation
parameters in 1st, 2nd and 3rd order function of satellite image
scanline. Among them, the rotational angle parameters such as w(omega)
and f(phi) correlated highly with positional parameters could be
assigned to constant values. For the experiments, two different
stereopairs of KOMPSAT-EOC satellite images exposed to the similar
area in different pass were used.
CONTACT
Kiin Bang, Graduate Course
Inha University, Department of Geoinformatic Engineering
253 Yonghyun Dong, Nam Gu
Inchon
KOREA
Tel. + 82 32 863 8712
Assistant Professor Woosug Cho
Inha University, Department of Civil Engineering
253 Yonghyun Dong, Nam Gu
Inchon
KOREA
Tel. + 82 32 860 7571
Fax + 82 32 873 7560
E-mail: wcho@inha.ac.kr
23 March 2001
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