Device for examination of distances in a picture

Details Device for examination of distances in a picture Device for examination of distances in a picture

1978-12-22

1980-09-16

Wise, Edward J.

Boots, shoes, and leggings

364489, G06F 1546, G06K 912

Patent

active

042233879

ABSTRACT:
A device examines a two dimensional quantized picture to determine whether any objects are closer together than a set minimum distance. The quantized picture has incremental areas assigned values of 0 or 1 corresponding to the presence or absence of an object. An array of interconnected logical cells identifies the presence of a separate object in the picture. The dimensions of the array correspond to the acceptable minimum distance between objects.
The device may be used to inspect for insufficient conductor separation or unacceptably wide conductors in printed circuit boards.

REFERENCES:
patent: 3609307 (1971-09-01), Totsuka et al.
patent: 3893080 (1975-07-01), Ho et al.
patent: 3905018 (1975-09-01), Gray
patent: 3909602 (1975-09-01), Micka
patent: 4003024 (1977-01-01), Riganati et al.
patent: 4109237 (1978-08-01), Hill
patent: 4138662 (1979-02-01), Shimoyama

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