S. Zambanini, Michael Herrmann, M. Kampel
2013
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2
Influential Citations
3
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Abstract
This paper presents an image-based method for determining the maximum diameter of historical coins. It consists of two steps: (1) the determination of the image’s spatial resolution through a Fourier analysis of specific pattern produced by a ruler placed next to the coin and (2) the segmentation of the coin and computation of maximum distance between border points. Experimental results show the high accuracy and robustness of the method with an error of 1.19%. Therefore, numismatists benefit from the method by a faster and more accurate processing of historical coins.