Implementation of image encryption using the phase-contrast technique

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 3386, Issue , 1998, Pages 284-290

  Neto, Luiz Gonçalves ^a  

^a UNIVERSITY OF SÃO PAULO   (Brazil)

Author keywords

Optical image encryption; Optical security; Phase mask; Phase contrast technique; Spatial light modulator (SLM); Thermoplastic plate

Indexed keywords

CRYPTOGRAPHY; ENCODING (SYMBOLS); GEOMETRICAL OPTICS; IMAGE CODING; ITERATIVE METHODS; LIGHT MODULATION; OPTICAL DATA PROCESSING; PATTERN RECOGNITION; REINFORCED PLASTICS; SIGNAL ENCODING;

OPTICAL IMAGE ENCRYPTION; OPTICAL SECURITY; PHASE CONTRASTS; PHASE MASKS; SPATIAL LIGHT MODULATORS;

LIGHT MODULATORS;

EID: 0000389053     PISSN: 0277786X     EISSN: 1996756X     Source Type: Conference Proceeding    
DOI: 10.1117/12.304774     Document Type: Conference Paper

References (8)

1. P. Refregier and B. Javidi, "Optical image encryption based on input plane and Fourier plane random encoding", Opt. Lett. 20, 767-769 (1995).
2. L. Gonçalves Neto and Y. Sheng, "Optical implementation of image encryption using random phase encoding", Optical Engineering, Vol. 35 No. 9, pp. 2459-2463, (1996).
3. L. Gonçalves Neto and Y. Sheng, "Optical implementation of image encryption using random phase mask and speckle-free phase Fresnel hologram", Orlando'97 SPIE's AeroSense Symposium - Optical Pattern Recognition VIII, Volume 3073, pp. 389-396, 22-23 April 1997.
4. B. Javidi, J. L. Homer, and J. F. Walkup, "An optical pattern recognition system for validation and security verification", Opt. Photo. News 13-18 (Sep. 1994).
5. Luiz Gonçalves Neto, Danny Roberge and Yunlong Sheng, "Programmable optical phase-mostly holograms with coupled-mode modulation liquid crystal television", Applied Optics, Vo. 34, 11, 1944-1950, (1995).
6. Luiz Gonsalves Neto, Danny Roberge and Yunlong Sheng, "Full range continuous complex modulation using two coupled-mode liquid crystal televisions", Applied Optics, Vo. 35, No. 23, p. 4567-4576, (1996).
7. J. W. Goodman, "Introduction to Fourier optics", 48-54, McGraw-Hill, (1968).
8. "The 1994 Newport Catalog", pp. 15.2-15.3, Newport Corporation, Irvine, CA.