Method for recognizing position of component and apparatus there

Details Method for recognizing position of component and apparatus there Method for recognizing position of component and apparatus there

1989-04-28

1991-08-06

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 48, G06K 900

Patent

active

050383809

ABSTRACT:
An X-Y coordinate is set on a video image including a component sucked with a suction tube, then two horizontal reference lines parallel to the Y-axis having a first predetermined length which is shorter than the length of the component and intersecting with the video image of the component are detected, and two vertical reference lines parallel to the X-axis having a second predetermined length which is shorter than the width of the component and intersecting with the video image of the component are also detected, and X-coordinates of the two horizontal reference lines and Y-coordinates of the two vertical reference lines are detected, subsequently, averages of the two X-coordinates and Y-coordinates are calculated, and the central position of the component is recognized on basis of these averages.

REFERENCES:
patent: 4163212 (1979-07-01), Buerger et al.
patent: 4628464 (1986-12-01), McConnell
patent: 4630225 (1986-12-01), Hisano
patent: 4803735 (1989-02-01), Nishida et al.

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