Image analysis – Histogram processing – For setting a threshold
Patent
1992-09-17
1994-12-27
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
348 88, 348130, 348133, 356430, G01N 2189, G01N 2186, H04N 718
Patent
active
053772792
ABSTRACT:
A method of displaying a defect appearing on an elongated object conveyed in one direction. The method comprises the steps of scanning the object in the width direction thereof by means of a sensor camera, and obtaining object image data corresponding to the object, processing the object image data, to detect a defect in the object, storing the object image data in an image memory in a scroll manner, stopping the scroll storing of the object image data in the image memory and storing the object image data output subsequently from the sensor camera in the other image memory in response to the detection of the defect, and retaining the object image data including the defect in the image memories as still image data, and displaying the still image data read out from the image memories on a monitor screen as a still image such that the defect is displayed at a predetermined position on the monitor screen.
REFERENCES:
patent: 4223346 (1980-09-01), Neiheisel et al.
patent: 4675730 (1987-06-01), Adomaitis et al.
patent: 4692943 (1987-09-01), Pietzsch et al.
patent: 4737846 (1988-04-01), Tokuno et al.
patent: 4979034 (1990-12-01), Funaki
Hanafusa Hideyuki
Nishio Masami
Boudreau Leo H.
Futec Inc.
Prikockis Larry J.
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