Disclosed are systems for non-contact characterization employing laser optical scanning techniques for evaluating surface characteristics of metal products, such as aluminum containers. Laser light is scanned over a surface and distances to the surface are measured and converted to a surface profile, used to identify characteristics in the surface, such as forming defects.
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Shores, Jay M.; Timms, Courtney; Guedes, Matheus; Nobrega, Carlos; and Raeisinia, Babak, "Non-Contact Characterization of Container Surfaces", Technical Disclosure Commons, (April 14, 2020)