Title :
Encryption using Fourier transform modulated DOVID and its detection technology
Author :
Cao, Hanqiang ; Chen, Rujun
Author_Institution :
Dept. of Electrics & Inf. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
In this paper, a new approach based on Fourier transform modulated DOVID has been presented to create security holograms with covert features, and well-protected security holograms can be made. The detection procedure is simple and reliable. Detected results show the detector performs well.
Keywords :
Fourier transform optics; cryptography; diffractive optical elements; holographic optical elements; optical images; optical information processing; optical modulation; Fourier transform modulated DOVID; detection device; diffraction optical variable image device; encryption; modulated diffraction grid; security holograms; Computer aided manufacturing; Counterfeiting; Cryptography; Fourier transforms; Holographic optical components; Holography; National security; Optical devices; Optical diffraction; Optical modulation; DOVID (Diffraction Optical Variable Image Devices); Fourier spectrum; modulated grid;
Conference_Titel :
Anti-counterfeiting, Security, and Identification in Communication, 2009. ASID 2009. 3rd International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3883-9
Electronic_ISBN :
978-1-4244-3884-6
DOI :
10.1109/ICASID.2009.5276947
