Optics: measuring and testing – Dimension
Reexamination Certificate
2004-10-25
2008-12-02
Nguyen, Sang (Department: 2886)
Optics: measuring and testing
Dimension
C356S602000, C250S236000
Reexamination Certificate
active
07460250
ABSTRACT:
A method for measuring the range to multiple points on a surface by projecting a line of light onto the surface, imaging said line of light onto a photodetector, computing the centroid of said line of light, computing quality factors for each computed centroid and encoding the quality factors as one or more bits in the centroid value, transmitting said centroid value to a data receiver, and computing the range to the surface for each point corresponding to each centroid value.
REFERENCES:
patent: 4628469 (1986-12-01), White
patent: 4741621 (1988-05-01), Taft et al.
patent: 4801207 (1989-01-01), Williams
patent: 4979815 (1990-12-01), Tsikos
patent: 4993835 (1991-02-01), Inoue et al.
patent: 5164579 (1992-11-01), Pryor et al.
patent: 5289261 (1994-02-01), Yogo et al.
patent: 5362962 (1994-11-01), Barborak et al.
patent: 5557410 (1996-09-01), Huber et al.
patent: 5625446 (1997-04-01), Bedard
patent: 5811827 (1998-09-01), Pryor et al.
patent: 5812269 (1998-09-01), Svetkoff et al.
patent: 5815272 (1998-09-01), Harding
patent: 6369401 (2002-04-01), Lee
patent: 6529627 (2003-03-01), Callari et al.
patent: 6839144 (2005-01-01), Okada et al.
Beraldin, et al., “Extension of the Dynamic Range of Active Laser Range Finders”, Illumination and Image Sensing for Machine Vision III, SPIE vol. 1005 Optics (1998) p. 164-168.
Naidu, et al., “A Comparative Analysis of Algorithms for Determining the Peak Position . . . ”, Proc. of British Mach. vision Conf. Univ. of Gaslgow, BMVC91, (1991) p. 217-225.
Svetkoff, et al. “Imaging Geometry and Error Sensitivity . . . ”, Three Dimensional and Unconventional Imaging for Industrial Inspection . . . , SPIE vol. 2599 (1995) p. 106-119.
Blais, et al. “Real Time Numerical Peak Detector”, Signal Process., 11(2) Ottawa, ,Canada (1986) p. 145-155.
Cunha Adriano
Keightley John
3DM Devices Inc.
Nguyen Sang
O'Brien Denis R.
Vermette Clifford W.
Vermette & Co.
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