| http://www.w3.org/ns/prov#value | - However, there is a problem that it is difficult to take the dimensions of the still object. [0004] In U.S. Pat. No. 5,661,561 issued to Albert Wurz, John E. Romaine and David L. Martin, it is used a scanned, triangulated CCD (charge coupled device) camera/laser diode combination to capture the height profile of an object when it passes through this system.
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