Method and apparatus for detecting a in a coin validator input coin using its embossed image

摘要

A method and apparatus for detecting a in a coin validator input coin using its characteristic features of the invention, in which the embossed image, which is received by a video pickup device proposed. In this case, in corresponding devices, the steps of:Spreading of the one pattern arrangement, which features in the imaging of the coin, can be reduced by reducing the size of the features of the image and transforming the same with a polar trans the form of seeds,Comparing the transformed image with a plurality of predetermined reference patterns according to a first simplified criterion with rapid processing time andCreating a list of reference pattern according to their similarity with the transformed image sorted,Comparing the transformed image with the reference patterns contained in the list in accordance with their sorting according to a second, accurate criterion, and outputting a detection signal, if one of the reference pattern corresponds to the transformed image,Breaking off of the comparison speed gear and repelling of the coin after a predetermined condition.