Image analysis – Applications – Manufacturing or product inspection
Reexamination Certificate
2005-08-02
2005-08-02
Mehta, Bhavesh M. (Department: 2625)
Image analysis
Applications
Manufacturing or product inspection
C382S147000, C382S199000, C382S209000, C382S287000, C250S559360
Reexamination Certificate
active
06925203
ABSTRACT:
A position detection apparatus for detecting a position of a mark on an object includes a camera which captures an image of the mark, an extraction section which extracts a plurality of edge positions of the mark based on a signal derived from the image of the mark, each of the edge positions being associated with a combination of a direction and a polarity of the signal, and a determination section which determines a position of the mark, by comparing each of the plurality of extracted edge positions with a corresponding one of templates prepared for the respective combinations.
REFERENCES:
patent: 4639604 (1987-01-01), Murakami et al.
patent: 4688088 (1987-08-01), Hamazaki et al.
patent: 4814829 (1989-03-01), Kosugi et al.
patent: 4860374 (1989-08-01), Murakami et al.
patent: 5073958 (1991-12-01), Imme
patent: 5136661 (1992-08-01), Kobayasi et al.
patent: 5160957 (1992-11-01), Ina et al.
patent: 5602937 (1997-02-01), Bedrosian et al.
patent: 5692072 (1997-11-01), Hashimoto
patent: 5696838 (1997-12-01), Chiu et al.
patent: 5754677 (1998-05-01), Kawada
patent: 5825913 (1998-10-01), Rostami et al.
patent: 6188467 (2001-02-01), Yamatsu et al.
patent: 6312859 (2001-11-01), Taniguchi
patent: 6317195 (2001-11-01), Taniguchi
patent: 6333786 (2001-12-01), Uzawa et al.
patent: 6421458 (2002-07-01), Michael et al.
Cognex 4000/5000 SMD Placement Guidance Package User's Manual 1996 , pp. 179-223.
“Image Technology & Information Display,” Video Information 1992/10, vol. 24, No. 10, 1992. Pp. 99-103 and 128. (with partial English translation).
Canon Kabushiki Kaisha
Chawan Sheela
Fitzpatrick ,Cella, Harper & Scinto
Mehta Bhavesh M.
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