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http://www.businessweek.com/stories/1993-10-03/furniture-makers-get-clark-kent-eyes

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Furniture Makers Get Clark Kent Eyes


Developments to Watch

FURNITURE MAKERS GET CLARK KENT EYES

Scientists at Virginia Polytechnic Institute are using computer vision to save trees. A system developed by Earl Kline and Richard Conners scans raw boards for defects so furniture makers can work around them--wasting less wood. Human inspectors do that now, but not as effectively.

A high-resolution color camera scans passing boards and sends an image to a computer, where color and grain are compared with preprogrammed grading data. A separate laser camera sees surface cracks down to 1 100 inch. Within a year, researchers hope to add an X-ray scanner to look inside the board for knots, holes, and decay. A computer also tells the saw where to cut. Conners says the machine will cost $75,000 to $150,000, depending on how many cameras are incorporated. The U.S. Forest Service has helped fund and develop the machine in the interest of forest management.EDITED BY RUTH COXETER


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