发明名称 |
3-D SCANNING AND POSITIONING SYSTEM |
摘要 |
A system for obtaining three-dimensional information about a surface, the system comprising: a sensing device having: a pattern projector for providing a projected pattern on the surface; and a camera for acquiring a 2D image of the surface from a viewpoint, wherein at least one target of a set of reference targets and at least a portion of the projected pattern is apparent on the 2D image; a storage for calibration data; an image processor for extracting 2D image coordinates of surface points of the projected pattern and target contours from the 2D image; a 3D surface point calculator for calculating 3D coordinates of the surface points from the 2D image coordinates of the surface points; a 3D target calculator for calculating a 3D position and/or an actual orientation for the reference target. |
申请公布号 |
US2015138349(A1) |
申请公布日期 |
2015.05.21 |
申请号 |
US201314405428 |
申请日期 |
2013.06.26 |
申请人 |
CREAFORM INC. |
发明人 |
Hebert Patrick;Rochette Félix |
分类号 |
G01B11/25;G01B11/00;H04N5/225 |
主分类号 |
G01B11/25 |
代理机构 |
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代理人 |
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主权项 |
1. A system for obtaining three-dimensional information about a surface having a set of at least one reference target, each reference target being provided at a fixed position one of on an environment of said surface and on said surface, said system comprising:
a sensing device having:
a pattern projector for providing a projected pattern on said surface;a camera for acquiring a 2D image of said surface from a viewpoint, said camera cooperating with said pattern projector, wherein at least one target of said set of reference targets and at least a portion of said projected pattern is apparent on said 2D image; a storage for calibration data, said calibration data including extrinsic and intrinsic parameters of said camera and said pattern projector; an image processor for extracting 2D image coordinates of surface points of the projected pattern and target contours from said 2D image; a 3D surface point calculator for calculating 3D coordinates of the surface points from said 2D image coordinates of said surface points using said calibration data; a 3D target calculator for calculating, from said 2D image coordinates of said target contours, using said 3D coordinates of the surface points and said calibration data, at least one of a 3D position and an actual orientation for said reference target. |
地址 |
Lévis CA |