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Proceedings Paper

Optical 3D watermarking and authentication by correlation techniques
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Paper Abstract

We present an optical method for information watermarking of 3D objects using digital holography and authenticating the hidden image. A hidden image is embedded using double phase encoding in a phase shift digital hologram of the 3D object. The watermarked hologram is decoded to reconstruct the hidden image and the 3D object. We use either the entire hologram or a part of it to decode the hidden image. The recovered hidden image is authenticated using non-linear correlation. Experiments are presented to illustrate the ability to recover both the 3D object and the decoded hidden image.

Paper Details

Date Published: 12 April 2004
PDF: 10 pages
Proc. SPIE 5437, Optical Pattern Recognition XV, (12 April 2004); doi: 10.1117/12.548060
Show Author Affiliations
Sherif Kishk, Univ. of Connecticut (United States)
Bahram Javidi, Univ. of Connecticut (United States)

Published in SPIE Proceedings Vol. 5437:
Optical Pattern Recognition XV
David P. Casasent; Tien-Hsin Chao, Editor(s)

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