Abstract
In order to make multitemporal analysis accurately, multispectral images must be precisely registered so that the same ground point has the identical coordinates in them. We have proposed an automated registration method ARTSIM (Automated Registration meThod for Satellite IMages), using a spatial correlation technique to generate many pairs of control point. The method accurately estimated relative rotation and shift between two images having the same spatial resolution.
Here we expand the method in terms of (1) applicability to images with different spatial resolutions, (2) processing speed for large scale images with huge number of pixels, and (3) accuracy of generating pairs of corresponding point in coastal regions. We call the new method as ARTSIM-II.
The proposed method was able to estimate the ratio of the spatial resolution accurately from 1.0 to 3.5 in numerical simulation. The method was successfully applied to registration between actual a SPOT/HRV and a LANDSAT/TM images.
