Optical system for accurate monitoring of the position and orien

Details Optical system for accurate monitoring of the position and orien Optical system for accurate monitoring of the position and orien

1995-12-27

1998-03-17

Voeltz, Emanuel T.

Boots, shoes, and leggings

364516, 345158, G06F 1520, G01B 1100

Patent

active

057294755

ABSTRACT:
The invention provides an optical system for monitoring the position and orientation of an object in a frame of reference. The system includes at least four light sensors (or light sources) fixed on the object in a non-coplanar arrangement, each producing a signal in response to a change in the intensity of light falling on it. The system also includes an optical scanner that generates a fan-shaped light beam (or acceptance beam) that scans a volume containing the object in a direction substantially perpendicular to the longitudinal axis of the beam, alternately in a first direction, and then in a second direction substantially perpendicular to the first direction; a signal generator that provides a time signal synchronized with a specific point in the scan; a timer that records the times of position signals generated by the light sensors and time signals generated by the signal generator; and a computing device that calculates the position and orientation of the object based on the times recorded by the timer and the coordinates of the light sensors.

REFERENCES:
patent: 3484167 (1969-12-01), Burns
patent: 3835249 (1974-09-01), Dattilo et al.
patent: 3848087 (1974-11-01), Carrell
patent: 4123165 (1978-10-01), Brown et al.
patent: 4218138 (1980-08-01), Robertsson
patent: 4396945 (1983-08-01), Di Matteo et al.
patent: 4446480 (1984-05-01), Breglia et al.
patent: 4488173 (1984-12-01), Di Matteo et al.
patent: 4667091 (1987-05-01), Gerlach
patent: 4672562 (1987-06-01), Egli et al.
patent: 4672564 (1987-06-01), Egli et al.
patent: 4818107 (1989-04-01), Ono et al.
patent: 4896962 (1990-01-01), Menn et al.
patent: 4910410 (1990-03-01), Workman
patent: 4926050 (1990-05-01), Shemwell
patent: 4930869 (1990-06-01), Miyagawa et al.
patent: 5059781 (1991-10-01), Langdon
patent: 5110202 (1992-05-01), Dornbusch et al.
patent: 5128794 (1992-07-01), Mocker et al.
patent: 5148016 (1992-09-01), Murakami et al.
patent: 5187540 (1993-02-01), Morrison
patent: 5227985 (1993-07-01), DeMenthon
patent: 5247487 (1993-09-01), Beliveau et al.
patent: 5285397 (1994-02-01), Heier et al.
patent: 5294970 (1994-03-01), Dornbusch et al.
patent: 5297061 (1994-03-01), DeMenthon et al.
patent: 5388059 (1995-02-01), DeMenthon
patent: 5440392 (1995-08-01), Pettersen et al.
patent: 5461473 (1995-10-01), Pratt et al.
patent: 5461478 (1995-10-01), Sakakibara et al.
patent: 5579102 (1996-11-01), Pratt et al.
Horaud et al., "An Analytic Solution for the Perspective 4-Point Problem" Computer Vision, Graphics, and Processing, 47:33-44 (1989).
Hand, "A Survey of 3-D input devices", Technical Report CS TR94/2, (1994), Leicester, UK.
Baratoff et al., "Tracking Devices", http://www.cs.umd.edu/projects/eve/eve-articles/1.D.1.b.Tracking Devices.html, (1995).

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