System Maintenance:
There may be intermittent impact on performance while updates are in progress. We apologize for the inconvenience.
By Topic

Computer generated correlation holograms

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Abookasis, D. ; Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel ; Rosen, J.

A new method of synthesizing computer generated holograms has been developed and experimentally tested. The method has been implemented by an iterative optimization algorithm on a joint transform correlator. The proposed hologram is a combination of two separated sub-holograms, and its reconstructed image is obtained as a result of a spatial correlation between the hologram's two parts. The double-holograms are displayed on the correlator input plane illuminated by a plane wave. Consequently, a desired image is constructed on part of the correlator output plane. The above method has been extended for deciphering watermarks, and other hidden information, from printed images. A spatial correlation between two concealograms, one containing the watermark and the other containing the deciphering key, reveals the concealed watermark from the printed picture, only when the two specific holograms are matched. Both simulation and experimental results are presented.

Published in:

Electrical and Electronics Engineers in Israel, 2004. Proceedings. 2004 23rd IEEE Convention of

Date of Conference:

6-7 Sept. 2004