Automatic focusing system of an observing means for inspecting a

Details Automatic focusing system of an observing means for inspecting a Automatic focusing system of an observing means for inspecting a

1987-10-07

1989-07-25

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358227, 358107, H04N 718

Patent

active

048519030

ABSTRACT:
A TV camera for visually inspecting an object is focused to a designated inspecting point, while being shifted to that inspecting point by utilizing a calculated distance from the TV camera to the next inspecting point without actually measuring the distance. The distance to the next inspecting point is calculated from a plane equation several of triangular planes formed over the object by a plurality of reference points previously designated on the object. The plane equations are calculated before executing inspection, by using distances, actually measured by distance measuring means, from the TV camera to the reference points.

REFERENCES:
patent: 4186301 (1980-01-01), Basire
patent: 4661986 (1987-04-01), Adelson
patent: 4731864 (1988-03-01), Modla

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