1. RFM USAGE FOR GEOREFERENCING OF HIGH RESOLUTION SATELLITE IMAGES
- Author
-
Hüseyin Topan
- Subjects
RFM ,IKONOS ,Zonguldak ,georeferencing ,georeferencing accuracy ,optical satellite image ,Technology ,Motor vehicles. Aeronautics. Astronautics ,TL1-4050 - Abstract
Georeferencing is a mandatory issue at many applications where the satellite images are used. Georeferencing is based on a transformation between images and objects coordinate systems, and parametric, semi parametric and non-parametric mathematical models are preferred for this issue. A semi-parametric model, i.e. sensor-based RFM (Rational Functional Model) suggested by the OGC (Open Geospatial Consortium) is subjected in this paper. Some theoretical background about the general equation, the estimation of coefficients, the distortions carried and their removing, the simplification of RFMs thanks to the special characteristics of coefficients and also the various adjustment models will be presented at first. Then, the georeferencing accuracies of a mono IKONOS panchromatic image covering Zonguldak test field having an undulating and mountainous topography will be presented using 22 GCPs via a computation package called GeoFigcon derived in Matlab environment by the author. If a bias compensation is applied, the accuracies are when 1st degree RFM is preferred.
- Published
- 2013