Image analysis – Applications – Manufacturing or product inspection
Patent
1993-12-15
1997-04-08
Mancuso, Joseph
Image analysis
Applications
Manufacturing or product inspection
356384, 382286, G06K 900
Patent
active
056195877
ABSTRACT:
There is disclosed a system for visually measuring the cross-sectional thickness of a light-reflective object, such as a vehicle wheel, said object having a plurality of curved surfaces. The system includes: means for transmitting a line of light onto each curved surface of the object at substantially the same cross-sectional area through the object; means for sensing the lines of light reflected from each curved surface and producing a plurality of signals thereby, said signals representing a linear profile of each curved surface at the same cross-sectional area; and means for comparing the profile signals from each curved surface for calculating a cross-sectional thickness of the object at one or more points along the same cross-sectional area. On a more preferred basis, this system further includes means for supporting the object, and means for rotating the object about at least one axis of support to measure a plurality of cross-sectional thicknesses thereof. Most preferably, the light transmittal means of this system include a plurality of light sources for transmitting collimated laser lines across the object's inner curved surfaces from opposite sides of the object substantially simultaneously. A method for inspecting a vehicle wheel to determine whether it is within dimensional specification is also disclosed. This method employs a system substantially as set forth above.
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Adomaitis Paul R.
Goldman Avraham C.
Jordan Donald G.
Montellese Steve
Shtrahman Abraham
Aluminum Company of America
Mancuso Joseph
Topolosky Gary P.
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