| http://www.w3.org/ns/prov#value | - As should be understood from the figure, use of planar illumination banks such as those emitting oblique rays 118, will cause a shadow to be cast by second object 218' such that acquisition means 20 captures the image of the shadow through its line of sight, thus enhancing an inspection system's ability to detect a feature, such as a flaw or imperfection.
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