| 摘要 |
PROBLEM TO BE SOLVED: To photograph an image suitable to three-dimensional restoration.SOLUTION: Three-dimensional restoration processing is for use in obtaining a three-dimensional point set of a photographed feature on the basis of a correlation of feature points among plural images photographed from plural spots. For photographing an image used for the processing, a target is set within a processing-target target zone, and an aircraft is flown on a route circling the target to photograph the target and an area surrounding the target with a camera mounted on the aircraft. The photographed images are mutually overlapped at a rate required for the three-dimensional restoration processing, with the number of pictures no less than the number required for the processing. Thus, photographing the target and the target area from the route circling the target and the target area makes it possible to photograph the target area efficiently in short time. Color components are often used for correlating feature points among images in the three-dimensional restoration processing, and therefore the enabling of photographing in short time also provides advantage of avoiding changes in a lighting condition of the target and target area. |
