For this project approximate values of the exterior orientation parameters were provided, with an accuracy of 50m for the projection centers, while the A, B angles were considered equal to zero and the k angle was calculated from the approximate values of the image centres. The initialization automatically creates nominal tie-points, in object coordinates, for later use in correlation. These nominal tie-points (in a 3x3 vonGruber point pattern) will be used later by ISAT to generate clusters of matched points. Default value for the size of every patch window is 100x100 pixels. As an example of the matching method, tie points in multi-photo view are presented below. The user is obliged to control the success of the algorithm visually.