Apparatus for detecting defects on the bottom of bottles by mani

Details Apparatus for detecting defects on the bottom of bottles by mani Apparatus for detecting defects on the bottom of bottles by mani

1994-10-07

1996-04-23

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25055945, 25055946, 356240, 209526, G06M 700

Patent

active

055106102

ABSTRACT:
An algorithm is disclosed which effectively removes the knurled annular portion on the bottom of a glass or plastic bottle which is located at an inspection location where diffused light is shown through the bottom of the bottle and is observed by a camera looking down through the bottle opening. The annular area is unwrapped and differenced to eliminate the knurling so that defects can be defined.

REFERENCES:
patent: 4428673 (1984-01-01), Yoshida
patent: 4900916 (1990-02-01), Cormack
patent: 4943713 (1990-07-01), Yoshida
patent: 4959537 (1990-09-01), Kimoto et al.
patent: 5095204 (1992-03-01), Novini
patent: 5349435 (1994-09-01), Hall et al.
patent: 5354984 (1994-10-01), Baldwin

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