Method for optical alignment of one object with respect to anoth

Details Method for optical alignment of one object with respect to anoth Method for optical alignment of one object with respect to anoth

1985-05-02

1988-02-09

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358107, 356375, 901 47, H04N 718

Patent

active

047244801

ABSTRACT:
An arrangement for aligning a first object relative to a second object, in which a light pattern is projected from the first object onto the second object. An image of the pattern on the second object is recorded with a camera mounted on the first object. From the camera image it is possible to determine the relative position and orientation of the second object relative to the first object. In an alternate arrangement, a first light pattern is projected from the first object onto the second object, and a second light pattern is projected from the first object onto the second object, so that the second patten and the first pattern form a uniquely identifiable overlap pattern when the second object is in predetermined alignment with respect to the first object. From a camera image which has recorded the overlapping patterns, the position and orientation of the second object may be determined relative to the first object.

REFERENCES:
patent: 3885872 (1975-05-01), Howe, Jr. et al.
patent: 4185918 (1980-01-01), DiMatteo et al.
patent: 4396945 (1983-08-01), DiMatteo et al.
patent: 4491719 (1985-01-01), Corby, Jr.
patent: 4529316 (1985-07-01), DiMatteo
patent: 4575304 (1986-03-01), Nakagawa et al.

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