Method for orienting a dual mouse optical scanner

Details Method for orienting a dual mouse optical scanner Method for orienting a dual mouse optical scanner

1988-11-15

1991-01-08

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 7, 382 46, 340710, 358473, G06K 900

Patent

active

049842870

ABSTRACT:
A method for orienting a dual mouse optical scanner on an orthogonal grid pattern comprising the steps of (a) placing a dual mouse scanner on a grid pattern at a small angle to the vertical lines of the grid pattern and commencing motion detection with the two mice, (b) setting the coordinate position of each mouse at (0,0), (c) rotating the scanner in a predetermined manner while measuring the vertical distance on the grid pattern between the two mice for each new position of the scanner, (d) determining an average scanner position amongst all scanner positions having the same maximum vertical grid distance between the mice, and (e) establishing the coordinate position of one mouse at the average scanner position as the origin of a coordinate system in the memory of a computer in communication with the scanner and the vertical line closest to the origin and the coordinate position of the other mouse as the vertical axis of the coordinate system.

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