This correction mechanism described here is applied to 
many images from the KITSAT-1. In most cases, the 
mechanism finds successfully the geometric model 
parameters with less than 0.01 pixel accuracy after about 
more than 10000 iterations to converge them. This result 
shows. much better performance comparing with simple 
linear polynomial GCP mapping. 
6. Conclusions 
The CEIE in the KITSAT-1 microsatellite demonstrates 
many possibilities in the observation of the Earth surface 
with a very low cost satellite platform and imager. Images 
from the CEIE can be very valuable even if they are not 
comparable to scenes from existing commercial satellites. 
They show some hardware abnormalities but produce lots 
of images with reasonable qualities and low cloud 
coverage, which can be used for further processing and 
analysis 
Preprocessing is very necessary to use an image for 
various applications. In this paper, the geometric 
distortions in the KITSAT-1 images were analyzed and a 
correction mechanism to remove them is developed. The 
developed procedure shows reasonable performance in 
correcting image from  micro-satellites such as the 
KITSAT-1 images. It can be also a basis for developing 
geometric correction algorithms for images from other 
remote sensing satellites which have large amount of 
pointing error or do not give sufficient accurate attitude 
information. 
Figure 8. The preprocessed image projected to TM coordinates 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B3. Vienna 1996 
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Hughes P.C., Spacecraft Attitude Dynamics, John Wiley 
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Kim, S.H., Sung, D.K. and Choi, S.D., 1992, A Korean 
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Lee, I., Sung, D. K. and Choi, S.D., 1993, Multimission 
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