Automatic product checking system

Details Automatic product checking system Automatic product checking system

1980-05-12

1981-07-07

Britton, Howard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

356237, H04N 718

Patent

active

042778034

ABSTRACT:
The surface condition of a product being checked is determined by viewing the product with a raster-scanned television camera, or its equivalent and, on a horizontal-line-by-horizontal-line basis detecting the number of points in the video envelope which have a zero slope (a derivative of "zero") and, from such information generating a reject signal if the number of points exceeds one.

REFERENCES:
patent: 3922093 (1975-11-01), Dandliker
patent: 4139306 (1979-02-01), Norton

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