Image analysis – Applications – Manufacturing or product inspection
Patent
1994-11-14
1996-07-02
Couso, Jose L.
Image analysis
Applications
Manufacturing or product inspection
382100, 382141, 382152, 21912163, 21912434, 348 90, G06K 900
Patent
active
055331467
ABSTRACT:
An apparatus for determining quality of a weld bead of an welded assembly of different metal sheets, wherein a slit beam of light is obliquely thrown on the weld bead to make an illuminated band on an upper surface of the welded assembly. A CCD camera disposed above the welded bead photographs the illuminated band to make an image of the illuminated band. The image is treated in an image pretreatment device so that a surface of a transverse cross section of the weld bead can be expressed in the form of one-dimensional data. Characteristics of the cross section of the weld bead are extracted from the one-dimensional data and are compared with predetermined references in a personal computer so that it is determined whether the weld bead is acceptable. Since the speed of data treatment is high, an on-line and real-time determination of the quality of the weld bead is possible.
REFERENCES:
patent: 4501950 (1985-02-01), Richardson
patent: 4677473 (1987-06-01), Okamoto et al.
patent: 4733051 (1988-03-01), Nadeau et al.
patent: 4739404 (1988-04-01), Richardson
patent: 4916286 (1990-04-01), Sarugaku et al.
patent: 5182775 (1993-01-01), Matsui et al.
John E. Agapakis, Approaches for Recognition & Interpretation of Workpiece Surface Features Using Structured Lighting, The International Journal of Robotics Research, 9 (1990) Oct., No. 5.
Couso Jose L.
Do Anh Hong
Toyota Jidosha & Kabushiki Kaisha
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