Lead sense system for component insertion machine

Details Lead sense system for component insertion machine Lead sense system for component insertion machine

1987-03-24

1989-08-29

Boudreaul, Leo

Image analysis

Histogram processing

For setting a threshold

250561, 358101, 358106, 364468, G06K 900

Patent

active

048625108

ABSTRACT:
Method and apparatus are disclosed for analyzing an image produced by a camera focused on the leads of a component that have been inserted into a printed circuit board by a component insertion machine. The method and apparatus include the construction of arrays of information pertaining to individual leads that should be present in the image produced by the camera. Individual strings of pixel information in the form of binary encoded bits within each array are analyzed for the presence of a pattern of bits that would indicate a lead. The method and apparatus are operative with respect to a pixel resolution that may only produce a single properly encoded bit per width of inserted lead.

REFERENCES:
patent: 4450579 (1984-05-01), Nakashima et al.
patent: 4464833 (1984-04-01), Duncan
patent: 4549087 (1985-10-01), Duncen et al.
patent: 4686565 (1987-08-01), Ando
patent: 4696047 (1987-09-01), Christian et al.
patent: 4739175 (1988-04-01), Tamura
patent: 4772125 (1988-09-01), Yoshimura et al.

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