In the method of obtaining captures images, there is overlaps in images in the flight direction and in a direction (cross direction) that crosses the flight direction. A predetermined number of the captured images containing overlapping sections that include a target point are selected out of the obtained images in the flight direction and/or the cross direction. From the overlap sections of these captured images, selected images are obtained by selecting image sections within a specific range that contains the target point. Using the flight direction and the cross direction as axes for a matrix, the selected images are arranged to create an aerial photograph data set.