| 摘要 |
A field of view available for stereo measurement is expanded using a field of view other than a common field of view. To this end, a plane (plane e) including a corresponding point (xa) on a sensor plane of a first camera, which corresponds to a feature point (X), a focal position (F1) of the first camera, and a focal position (F2) of the second camera is calculated; a first line (straight line E) that is a line of intersection of the plane (plane e) and a plane including a sensor plane of the second camera is calculated; a second line (straight line G) including a corresponding point group on the sensor plane of the second camera, which corresponds to a feature point group, is calculated; an intersection of the first and second lines is calculated as a corresponding point (xb) on the plane including the sensor plane of the second camera, which corresponds to the feature point (X); and three-dimensional coordinates of the feature point (X) are calculated based on the corresponding points (xa, xb). |
