Method for measuring a three-dimensional position of an object

Details Method for measuring a three-dimensional position of an object Method for measuring a three-dimensional position of an object

1986-05-20

1989-07-11

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356 1, G01B 902

Patent

active

048465763

ABSTRACT:
A method for measuring a three-dimensional position of an object with a single camera and a multislit light, i.e., a source of multiplanar light beams. A surface of the object is irradiated with multislit lights, i.e., multiplanar light beams, having a plurality of slit light faces and also irradiated with a single standard slit light having a slit light face identical to one of the plurality of slit light faces of the multislit lights. A plurality of slit light photo images corresponding to a plurality of slit light projected images and a standard slit light photo image corresponding to a slit light projected image formed on the object are obtained. One of the slit light photo images which corresponds to the standard slit light photo image is specified and made to correspond, to compute a three-dimensional position of the object in a predetermined coordinate.

REFERENCES:
patent: 4212073 (1980-07-01), Balasubramanian
patent: 4335962 (1982-06-01), Di Matteo et al.
patent: 4357108 (1982-11-01), Stern et al.
patent: 4412121 (1983-10-01), Kremers et al.
patent: 4423931 (1984-01-01), Shapiro
patent: 4452534 (1984-06-01), Gribanov et al.
patent: 4498778 (1985-02-01), White
Proc. 6th Int. Conf. Pattern Recog., vol. 1, pp. 220-222, 1982.
"Wiresight: Robot Vision for Determining Three-Dimensional Geometry of Flexible Wires", The Proceedings of 1983 International Conference on Advanced Robotics (ICAR), Sep. 12-13, 1983, Tokyo, Japan, pp. 133-138.

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