Optics: measuring and testing – Shape or surface configuration
Reexamination Certificate
2006-03-17
2008-08-12
Chowdhury, Tarifur R. (Department: 2886)
Optics: measuring and testing
Shape or surface configuration
Reexamination Certificate
active
07411688
ABSTRACT:
According to an embodiment, a method and system for color calibration in a three-dimensional multi-color laser scanning system is disclosed. An object may be scanned with the scanning system, which scans the object with color laser heads. Laser intensities, corresponding to laser intensity values, may be received from the scanned object. Three different calibration targets are used to setup a field of view (FOV) calibration profile due to scanning position changes, a surface normal calibration profile due to surface normal direction changes, and a color reflectance calibration profile due to color reflectance changes. After compensating for laser power drift fluctuations, the laser intensity values may be further compensated for field of view scanning position changes and surface normal direction changes using the field of view calibration profile and surface normal calibration profile. Color values of each point scanned from the object may be calculated using compensated laser intensity values from the color reflectance profile.
REFERENCES:
patent: 4839722 (1989-06-01), Barry et al.
patent: 5374988 (1994-12-01), Wertz et al.
patent: 5491568 (1996-02-01), Wan
patent: 5493321 (1996-02-01), Zwadlo
patent: 5583666 (1996-12-01), Ellson et al.
patent: 5668631 (1997-09-01), Norita et al.
patent: 5675407 (1997-10-01), Geng
patent: 5809366 (1998-09-01), Yamakawa et al.
patent: 5988862 (1999-11-01), Kacyra et al.
patent: 6028672 (2000-02-01), Geng
patent: 6141105 (2000-10-01), Yahashi et al.
patent: 6147760 (2000-11-01), Geng
patent: 6151118 (2000-11-01), Norita et al.
patent: 6246468 (2001-06-01), Dimsdale
patent: 6252623 (2001-06-01), Lu et al.
patent: 6330523 (2001-12-01), Kacyra et al.
patent: 6341016 (2002-01-01), Malione
patent: 6420698 (2002-07-01), Dimsdale
patent: 6473079 (2002-10-01), Kacyra et al.
patent: 6512518 (2003-01-01), Dimsdale
patent: 6529280 (2003-03-01), Yahashi et al.
patent: 6549288 (2003-04-01), Migdal et al.
patent: 6553138 (2003-04-01), Rozin
patent: RE38180 (2003-07-01), Edge
patent: 6636310 (2003-10-01), Ben-Dov et al.
patent: 6677956 (2004-01-01), Raskar et al.
patent: 6700669 (2004-03-01), Geng
patent: 6840597 (2005-01-01), Wilson et al.
patent: 6847462 (2005-01-01), Kacyra et al.
patent: 6851785 (2005-02-01), Wu et al.
patent: 6911995 (2005-06-01), Ivanov et al.
patent: 6930681 (2005-08-01), Raskar et al.
patent: 6937348 (2005-08-01), Geng
patent: 6962289 (2005-11-01), Vatan et al.
patent: 6983082 (2006-01-01), Duiker
patent: 6985145 (2006-01-01), Knighton et al.
patent: 2001/0016063 (2001-08-01), Albeck et al.
patent: 2003/0164952 (2003-09-01), Deichmann et al.
patent: 2003/0223083 (2003-12-01), Geng
patent: 2005/0180662 (2005-08-01), Hoffman et al.
Rejean Baribeau, Marc Rioux and Guy Godin, Color reflectance Modeling Using a PolyChromatic Laser Range Sensor, IEEE Transactions on Pattern Analysis and Machine Intelligence, V. 14, No. 2, Feb. 1992, pp. 263-269. NRC 31770.
J-A Beraldin, L. Cournoyer, M. Rioux, F. Blais, S.F.EI-Hakim and G. Godin, Object model creation from multiple range images: Acquisition, Calibration, Model Building and Verification, Proceedings of the International Conference on Recent Advances in 3-D Digital Imaging and Modeling Ottawa. Ont. May 12-15, 1997. pp. 326-333 NRC 40169.
J.-A. Beraldin, M. Rioux, F. Blais and G. Godin, Model-based Calibration of a Range Camera, Proceedings of the 11thInternational Conference on Pattern Recognition, The Hague, The Netherlands, Aug. 30—Sep. 3, 1992, pp. 163-167. NRC 33205.
J.-A. Beraldin, M. Rioux, F. Blais, G. Godin and R. Baribeau, Calibratoin of an Auto-synchronized Range Camera with Oblique Planes and Collinearity Equation Fitting, NRC ERB-1041, Nov. 1994. 40 pages NRC Jan. 11, 1994.
Federico Bumbaca, Francois Blais and Marc Rioux, Real-time correction of three-dimensional monlinearities for a laser rangefinder, Optical Engineering, V. 25, No. 4, Apr. 1986.
Arnold Daniel James
Bell John D.
Malik Tina
Zhai Yongjian
Akanbi Isiaka O
Arius3D Inc.
Chowdhury Tarifur R.
Glazier Stephen C.
K & L Gates LLP
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