| 摘要 |
590428 Disclosed is a method for approximating the location of a point of interest (220) relative to a three dimensional coordinate system. The method includes the following steps: (a) orientating a camera (210) toward the point of interest (220) such that the point of interest (220) can be seen within a camera view; (b) retrieving camera data including a camera location relative to the three dimensional coordinate system, and a camera position including a camera heading and a camera tilt; (c) querying an associated topographic map database to identify a plurality of coordinates (240) located on the topographic map along the camera heading to form a first dataset; (d) computing a plurality of coordinates (250) located on a camera trajectory (230) between the camera (210) and the point of interest (220) at predetermined intervals along the camera trajectory (230) based on the camera heading and the camera tilt to form a second dataset; and (e) comparing the first dataset with the second dataset to identify a pair of matching coordinates; wherein the matching coordinates represent the three dimensional coordinate location of the point of interest (220). |
