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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 35 — Dec. 10, 2000
  • pp: 6595–6601

Encrypting three-dimensional information with digital holography

Enrique Tajahuerce and Bahram Javidi  »View Author Affiliations


Applied Optics, Vol. 39, Issue 35, pp. 6595-6601 (2000)
http://dx.doi.org/10.1364/AO.39.006595


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Abstract

A method for optical encryption of three-dimensional (3D) information by use of digital holography is presented. A phase-shifting interferometer records the phase and amplitude information generated by a 3D object at a plane located in the Fresnel diffraction region with an intensity-recording device. Encryption is performed optically by use of the Fresnel diffraction pattern of a random phase code. Images of the 3D object with different perspectives and focused at different planes can be generated digital or optically after decryption with the proper key. Experimental results are presented.

© 2000 Optical Society of America

OCIS Codes
(070.4560) Fourier optics and signal processing : Data processing by optical means
(090.1760) Holography : Computer holography
(100.6890) Image processing : Three-dimensional image processing
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(150.6910) Machine vision : Three-dimensional sensing
(200.3050) Optics in computing : Information processing

History
Original Manuscript: April 20, 2000
Revised Manuscript: August 14, 2000
Published: December 10, 2000

Citation
Enrique Tajahuerce and Bahram Javidi, "Encrypting three-dimensional information with digital holography," Appl. Opt. 39, 6595-6601 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-35-6595

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