| 摘要 |
PROBLEM TO BE SOLVED: To improve analysis accuracy of a three-dimensional restoration.SOLUTION: A three-dimensional restoration is made using an image having the same region photographed from two different points and in a different photograph direction by cameras loaded in an aircraft. In this case, the cameras are installed so that a yaw angle is three directions with respect to a machine axis of the aircraft, and a periphery of a region which is an object of the three-dimensional restoration is photographed while flying with a grid-like trajectory. At each point on the trajectory, images can be obtained that are photographed by simultaneously directing the cameras to the three directions. When a direction of the camera is different by 30° each, a relative angle of the photograph direction in between images photographed on orthogonal two trajectories is distributed in a range of 30° to 150°. Accordingly, an analysis device for making the three-dimensional restoration is configured to select images having the relative angle smaller than 90° from images obtained with many combinations of the photograph direction to make the three-dimensional restoration. By using such images, analysis accuracy of the three-dimensional restoration can be improved. |
