| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique which facilitates keystone processing of a projector.SOLUTION: A bearing adjustment unit 50 of a projector 10 comprises an installation bearing wall surface calculation unit 52, a geomagnetic sensor 54, a rotation angle sensor 56, and a reference bearing storage unit 58. The installation bearing wall surface calculation unit 52 detects a reference bearing (reference direction) of a projection direction and a difference (angle difference) between the reference bearing and a projection direction in actual projection using the geomagnetic sensor 54 and the rotation angle sensor 56. The detected difference is used for horizontal keystone processing in an image processing unit 20. |
