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College of Artificial Intelligence
Department of Electrical Engineering and Computer Science
1. Journal Articles
Counterfeit Detection Using Characterization of Safety Feature on Banknote with Full-field Optical Cohornce Tomography
- Type
- Article
- Citation
- Journal of the Optical Society of Korea, v.14, no.4, pp.316 - 320
- Issued Date
- 2010-12
- Abstract
- We report an application of full-field optical coherence tomography (FF-OCT) for identifying counterfeit bank notes. The depth-resolved imaging capability of FF-OCT was used for tomographic identification of superficially-identical objects. By retrieving the internal structures of the security feature (cash hologram) of an original banknote, we could demonstrate the feasibility of FF-OCT to identify counterfeit money. The FF-OCT images showed that the hologram consisted of micron scale multi-coated layers including an air gap. Therefore, it is expected that FF-OCT has potential as a new non-invasive tool to discern imitation of currency, and it would find applications in a wide field of counterfeit sciences.
- Publisher
- Optical Society of Korea
- ISSN
- 1226-4776
- Appears in Collections:
- Department of Electrical Engineering and Computer Science > 1. Journal Articles
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