| 摘要 |
A calibration apparatus calibrating a projection unit projecting light-rays includes: an imaging unit taking an image of a surface of an object having a location and an attitude, the light-rays projected onto the surface by the projection unit; a location-and-attitude estimation unit estimating the location and the attitude of the surface based on the image; a reflection-point estimation unit estimating, based on the estimated location and the attitude, a reflection point at which one of the light-rays is reflected by the surface; and an identification unit identifying both a passing point that the one of the light-rays passes and a direction in which the one of the light-rays passes the passing point, or identifying only the direction, based on multiple reflection points obtained by the reflection-point estimation unit with respect to multiple different locations and/or multiple different attitudes of the surface. |
