RECOGNITION OF DIGITAL CODE IMAGES ON A FUEL ELEMENT SURFACE
A.G.Verkhogliad, I.V.Plekhanova, L.V.Finogenov, I.V.Borisova, and P.G.Popov
Novosibirsk
Pages: 51-57
Abstract
A method for recognition of a digital code written by a laser on a cylindrical surface of the stopper of fuel elements is analyzed. The method is based on representing (encoding) each image pixel by a direction of the dominant orientation of its local vicinity. The encoded image is compared with a set of standards. The value of the symbol recognized is determined by a standard with which the maximum number of coincidences was obtained. A code reading device based on a CCD camera and a circular illuminator is presented. Experimental results confirming the efficiency and reliability of the method are given.
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