| 发明名称 |
CALIBRATION APPARATUS, PROJECTOR AND CALIBRATION METHOD |
| 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. |
| 申请公布号 |
US2015319415(A1) |
申请公布日期 |
2015.11.05 |
| 申请号 |
US201314651107 |
申请日期 |
2013.12.24 |
| 申请人 |
HARA Takayuki |
发明人 |
HARA Takayuki |
| 分类号 |
H04N9/31;G01B11/00;G01J1/42;G01M11/02 |
主分类号 |
H04N9/31 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A calibration apparatus for calibrating a projection unit which projects light rays, the calibration apparatus comprising:
an imaging unit configured to take an image of a surface of an object having a location and an attitude, the light rays being projected onto the surface by the projection unit; a location-and-attitude estimation unit configured to estimate the location and the attitude of the surface based on the image; a reflection-point estimation unit configured to estimate, based on the estimated location and the estimated attitude, a reflection point at which one of the light rays is reflected by the surface; and an identification unit configured to identify 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 to identify only the direction, based on a plurality of reflection points that are obtained by the reflection-point estimation unit with respect to a plurality of different locations and/or a plurality of different attitudes of the surface. |
| 地址 |
US |
