Method and apparatus for the automatic inspection of cigarette r

Details Method and apparatus for the automatic inspection of cigarette r Method and apparatus for the automatic inspection of cigarette r

1993-05-14

1995-05-09

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

209536, G01N 2188

Patent

active

054142709

ABSTRACT:
A method of and apparatus for automatically inspecting cigarette rods for spots and stains are disclosed in which a hopper assembly apparatus is utilized to present cigarette samples one at a time to a CCD camera which takes an image of a 36 degree slice of the surface of the outer wrapper of the cigarette. The image is digitized, analyzed and stored. The cigarette is then rotated through 360 degrees and an image of each 36 degree segment of its outer surface is obtained, analyzed and the data stored. The system then selects another cigarette and repeats the inspection and evaluation process.

REFERENCES:
patent: 4639592 (1987-01-01), Heitmann
patent: 4845374 (1989-07-01), White et al.
patent: 5235649 (1993-08-01), Reda

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