发明名称 |
PROJECTION SYSTEM, IMAGE PROCESSING DEVICE, AND PROJECTION METHOD |
摘要 |
A projection system includes projection units configured to project an image on a projection body; a preparing unit configured to prepare calibration-use images; an extraction unit configured to extract, from each of the calibration-use images, at least grating points indicating a distortion in a projected image of one of the projection units and alignment points of the projected image of the one of the projection units or another one of the projection units; a conversion unit configured to convert, onto a common coordinate system, the grating points of the projected images of the projection units extracted from the calibration-use images, based on alignment points common to the calibration-use images; and a geometric correction coefficient calculation unit configured to calculate a geometric correction coefficient for providing a projection image to be projected from the projection units, based on the grating points on the common coordinate system. |
申请公布号 |
US2015029465(A1) |
申请公布日期 |
2015.01.29 |
申请号 |
US201414341094 |
申请日期 |
2014.07.25 |
申请人 |
ISHIKAWA Masaaki;UCHIYAMA Yukinaka |
发明人 |
ISHIKAWA Masaaki;UCHIYAMA Yukinaka |
分类号 |
G06T7/00;G06K9/46;G03B21/14 |
主分类号 |
G06T7/00 |
代理机构 |
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代理人 |
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主权项 |
1. A projection system comprising:
a plurality of projection units configured to project an image on a projection body; a taken image preparation unit configured to prepare a plurality of calibration-use images; an extraction unit configured to extract, from each of the plurality of calibration-use images, at least grating points indicating a distortion in a projected image of one of the plurality of projection units and alignment points of the projected image of the one of the plurality of projection units or a projected image of another one of the plurality of projection units; a conversion unit configured to convert, onto a common coordinate system, the grating points of the projected images of the plurality of projection units extracted from the plurality of calibration-use images by the extraction unit, based on alignment points common to the plurality of calibration-use images; and a geometric correction coefficient calculation unit configured to calculate a geometric correction coefficient for providing a projection image to be projected from the plurality of projection units, based on the grating points on the common coordinate system. |
地址 |
Kanagawa JP |