Title :
A model-based approach for geometrical correction of optical satellite images
Author :
Huseby, Ragnar Bang ; Halck, Ole Martin ; Solberg, Rune
Author_Institution :
Norwegian Comput. Center, Oslo, Norway
Abstract :
In this paper, we describe a method for geometric correction of optical satellite images. The method is based on modeling the imaging process, including satellite orbital modeling, and uses a set of ground control points. We also present an algorithm for automatic detection of ground control points based on a matching technique. The performance of the correction procedure was investigated on three kinds of data: (i) NOAA/AVHRR images with pixel size 1000×1000 m2 (ii) system-corrected Landsat TM image with pixel size 30×30 m2 ; (iii) an image with pixel size 240×240 m2 (similar to EOS MODIS) derived from the system-corrected Landsat TM image by resampling. For the NOAA/AVHRR images and the image similar to EOS MODIS, we obtained satisfactory results with a root mean square error of about one pixel unit. The model has to be further improved for high-resolution data, such as Landsat TM
Keywords :
geophysical signal processing; image matching; remote sensing; EOS MODIS; NOAA/AVHRR images; automatic detection; geometrical correction; ground control points; imaging process; matching technique; model-based approach; optical satellite images; pixel size; resampling; root mean square error; satellite orbital modeling; system-corrected Landsat TM image; Automatic control; Earth Observing System; Geometrical optics; MODIS; Optical imaging; Pixel; Remote sensing; Root mean square; Satellites; Solid modeling;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.773488
