发明名称 |
IMAGE PROJECTOR, INCLINATION ANGLE DETECTION METHOD, AND PROJECTION IMAGE CORRECTION METHOD |
摘要 |
In a projector to which the present invention is applied, a distance sensor (21) measures distances between the projector and a plurality of points on a screen (31). An angle calculation unit (23) obtains a formula representing a screen surface, based on plural pieces of distance data representing results of measurement by the distance sensor (21), and obtains inclination angles thetav and thetaH of the screen (31) with respect to the light axis of a projection light. The angle calculation unit (23) supplies the obtained inclination angles thetav and thetaH to a trapezoidal correction unit (12). The trapezoidal correction unit (12) performs trapezoidal correction by using the supplied inclination angles thetav and thetaH. |
申请公布号 |
WO2005006073(A3) |
申请公布日期 |
2005.06.02 |
申请号 |
WO2004JP10267 |
申请日期 |
2004.07.13 |
申请人 |
CASIO COMPUTER CO., LTD.;INOUE HIDEAKI |
发明人 |
INOUE HIDEAKI |
分类号 |
G01B11/26;G03B21/00;G03B21/14;H04N5/74;H04N17/00 |
主分类号 |
G01B11/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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