Title :
Secure display system by use of encrypted digital holograms
Author :
Matoba, Osamu ; Shimura, Tsutomu ; Kuroda, Kazuo ; Javidi, Bahram
Author_Institution :
Inst. of Ind. Sci., Univ. of Tokyo, Japan
Abstract :
Summary form only given. In this paper, a secure display system by use of encrypted digital holograms is presented. The original image is encrypted by random phase masks and then recorded as a digital hologram. The encrypted digital hologram is decrypted in a joint transform correlator architecture by using a key digital hologram. The encrypted digital holograms can be transmitted to remote users by communication channels, therefore the proposed system can be used for secure two-dimensional or three-dimensional display systems.
Keywords :
cryptography; display instrumentation; holography; image coding; image reconstruction; masks; optical correlation; security of data; spatial light modulators; telecommunication security; three-dimensional displays; beam splitter; communication channels; digital hologram transmission; encrypted digital holograms; image encryption; information security; joint transform correlator architecture; key digital hologram; optically-addressed spatial light modulator; random phase masks; remote users; secure data transmission system; secure display system; three-dimensional display systems; two-dimensional display systems; Computer displays; Correlators; Cryptography; Data communication; Fourier transforms; Image reconstruction; Optical modulation; Optical receivers; Optical recording; Three dimensional displays;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1133905
