Optical 3D watermarking and authentication by correlation techniques

Sherif Kishk; Bahram Javidi

doi:10.1117/12.548060

12 April 2004 Optical 3D watermarking and authentication by correlation techniques

Sherif Kishk, Bahram Javidi

Proceedings Volume 5437, Optical Pattern Recognition XV; (2004) https://doi.org/10.1117/12.548060
Event: Defense and Security, 2004, Orlando, Florida, United States

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.

Citation Download Citation

Sherif Kishk and Bahram Javidi "Optical 3D watermarking and authentication by correlation techniques", Proc. SPIE 5437, Optical Pattern Recognition XV, (12 April 2004); https://doi.org/10.1117/12.548060

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