Patent ID: 6768813
Filing Date: 2004-07-27
Classification: G01C

Abstract:
A photogrammetric image processing apparatus that utilizes a group comprising a plurality of images, each image commonly including a target at a predetermined position, that calculates a position of a camera taking each image and an inclination of an optical axis of the camera for each image, that designates a common physical point in each image, calculates three-dimensional coordinates of the physical point, and that generates a survey map based on the three-dimensional coordinates, said photogrammetric image processing apparatus comprising:an area computing processor that calculates a valid mapping range based on the camera positions and the optical axis inclinations for the plurality of images in the group and that generates an area marker based on the valid mapping range, the valid mapping range enabling designation of the physical point for making the survey map, and a display processor that displays the area marker on a screen of a display device, the area marker being superimposed on the survey map.