Abstract
To create a DEM using satellite images, correspondence detection in a stereo pair is regained. For defining a stereo pair, two or more in-track images captured within short period are used in most cases. To use images from different orbits for a stereo pair, parallax, time difference, and environment should be considered. In this paper, we propose a selection method of stereo pairs for creating a precise DEM, in using parallax, time difference and similarity between satellite images. And our method selects stereo pairs for every point for calculating height. We evaluate our method using ALOS/PRISM images. The result shows that the DEM provided by our method using different track images has almost same precision in comparison with the computed one using in-track images.
