Cylindrical container inner surface tester

Details Cylindrical container inner surface tester Cylindrical container inner surface tester

1993-11-24

1995-05-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

209526, G01N 904

Patent

active

054122031

ABSTRACT:
A cylindrical container inner surface tester which illuminates an opening of a test container. The test container is located at a predetermined position with its opening set levelly to capture the opening through a TV camera. The tester also detects black and white spots on the inner surface of the cylindrical container. This is accomplished by analyzing an image obtained by the TV camera using defect detecting means. The tester includes a frame memory which stores a multi-value continuous tone image signal as image data. The image signal is obtained by A/D-converting from a continuous tone image signal obtained by scanning the captured image. The tester also includes an area detecting unit which generates a binary image signal by binary-converting from a multi-value continuous tone image signal read by horizontally or vertically scanning the frame memory. This is accomplished using a predetermined threshold. The area detecting unit is also used to determine a test area. The test area falls within the area between the first rise point and the last fall point of each scanning line of the controlled binary image signal.

REFERENCES:
patent: 4513316 (1985-04-01), Kobayashi et al.
patent: 4580045 (1986-04-01), Kulig
patent: 4948956 (1990-08-01), Fukuchi
patent: 5072107 (1991-12-01), Apter

Affiliated with

Also associated with

Rating

Cylindrical container inner surface tester does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cylindrical container inner surface tester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylindrical container inner surface tester will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1139202