Method and apparatus for determining the appearance of an object

Details Method and apparatus for determining the appearance of an object Method and apparatus for determining the appearance of an object

1998-12-22

1999-12-28

Evans, F. L.

Optics: measuring and testing

By shade or color

356405, 356407, 356425, 433 26, 4332031, G01J 351

Patent

active

060089059

ABSTRACT:
A method for determining the appearance of an object to be replicated and an apparatus therefor are described herein. The method consists in providing a controlled illumination to illuminate a surface of the object, measuring the object with a CCD camera to collect an image map of a plurality of points on the surface and processing that information to produce an appearance mapping of the object. Calibration of the apparatus is done by measuring calibration patches illuminated with the same illumination. When the apparatus is made in view of replicating the appearance of an object, a comparison can be done by similarly producing an appearance mapping of the replicate and by comparing it to the appearance mapping of the object.

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