Abstract

We have proposed two techniques for identifying valuable ceramics. The first one involves baking visually unrecognizable two-dimensional code onto each product during the manufacturing process. This very thin code is made from transparent glass phosphor and is placed between the clay and glaze layers of the ceramic product. The second one involves extracting the information from each product with the said code in a non-contact manner by acquiring and processing images. The QR (Quick Response) code images are taken by an infrared camera and light.

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