한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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SIFT특징치를 이용한 다국적 지폐의 계층적 인식 알고리즘에 관한 연구

A Study on Hierarchical Recognition Algorithm of Multinational Banknotes Using SIFT Features

  • 투고 : 2016.06.28
  • 심사 : 2016.07.24
  • 발행 : 2016.07.31
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초록

본 연구에서는 물체 인식 분야에서 잘 알려진 회전, 스케일, 조명의 변화에 강인한 특징치인 SIFT를 이용하여 지폐의 특징 벡터를 구하고 이를 ANN알고리즘에 의해 정합하여 다국적 지폐를 인식하는 방법에 관한 것으로 계층적 지폐인식 방법을 제안한다. 지폐마다 지니고 있는 특징치를 추출하여 국적 및 권종을 인식하기 위하여 자외선, 적외선, 및 백색 투과광 조명을 개발하고 조명 변화에 따라 촬영된 영상으로부터 SIFT특징치를 구하고 다국적 지폐의 국적과 권종을 인식하는 방법을 구현하였다. 한화, 달러화, 유로화에 관하여 회전 및 크기 변화가 있는 환경에서 제안한 알고리즘을 적용하였고 잘 작동하고 있음을 확인 하였다.

In this paper, we not only take advantage of the SIFT features in banknote recognition, which has robustness to illumination changes, geometric rotation as well as scale changes, but also propose the hierarchical banknote recognition algorithm, which comprised of feature vector extraction from the frame grabbed image of the banknotes, and matching to the prepared data base of multinational banknotes by ANN algorithm. The images of banknote under the developed UV, IR and white illumination are used so as to extract the SIFT features peculiar to each banknotes. These SIFT features are used in recognition of the nationality as well as face value. We confirmed successful function of the proposed algorithm by applying the proposed algorithm to the banknotes of Korean and USD as well as EURO.

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참고문헌

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