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Coin Classification using CNN  

Lee, Jaehyun (한국교통대학교 컴퓨터공학과)
Shin, Donggyu (한국교통대학교 융합경영전공)
Park, Leejun (한국교통대학교 융합경영전공)
Song, Hyunjoo (한국교통대학교 산업경영공학전공)
Gu, Bongen (한국교통대학교 컴퓨터공학과)
Publication Information
Journal of Platform Technology / v.9, no.3, 2021 , pp. 63-69 More about this Journal
Abstract
Limited materials to make coins for countries and designs suitable for hand-carry make the shape, size, and color of coins similar. This similarity makes that it is difficult for visitors to identify each country's coins. To solve this problem, we propose the coin classification method using CNN effective to image processing. In our coin identification method, we collect the training data by using web crawling and use OpenCV for preprocessing. After preprocessing, we extract features from an image by using three CNN layers and classify coins by using two fully connected network layers. To show that our model designed in this paper is effective for coin classification, we evaluate our model using eight different coin types. From our experimental results, the accuracy for coin classification is about 99.5%.
Keywords
CNN; machine learning; coin; coin classification; currency;
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