Optical motion sensor

Details Optical motion sensor Optical motion sensor

1995-04-28

1996-07-02

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356153, G01B 1114

Patent

active

055328245

ABSTRACT:
An apparatus determines the position of an object with respect to a reference coordinate system. Preferably, the apparatus includes a target attached to the object, the target moves within a defined region and has a surface with a first pattern thereon. A projection device projects a second pattern upon the surface. A sensing device provides an image signal indicative of the target surface including the first pattern and the second pattern. An analyzer receives the image signal and determines the position of the object based on the position of images of the first pattern and the second pattern.

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"Automatic 6-D.O.F. Kinematic Trajectory Acquisition and Analysis," E. K. Antonsson et al, Journal of Dynamic Systems, Measurement, and Con.about.rol, vol. 111, Mar. 1989, pp. 31-39.
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Brochure, "Human Motion," Selspot Systems Ltd., Troy, MI 48083.
Brochure, "Selspot II--A Complete System for Sophisticated Motion Analysis," Selspot Systems Ltd., Troy, MI 48083.
Brochure, "OptoTrak/3000 Series Motion Measurement System," Northern Digital Inc., Waterloo, Ontario, Canada, Nov. 1991.
Brochure, "Contour Sensor," Perception, Framington Hills MI 48335.

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