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Proceedings Paper

Robust information hiding and extraction system based on complex phase code and optical correlator
Author(s): Jung-Jin Kim; Jin-Hyug Choi; Eun-Soo Kim
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Paper Abstract

In this paper, a new robust information hiding and optical extraction system by using a complex phase code and an optical correlator is proposed. Multiple information is digitally embedded into an arbitrary cover image by using complex phase codes in spatial domain and then, these data are extracted in real-time by means of coherent optical correlator. A new complex phase code used in this paper is known to have the random and orthogonal property, so it can be used as a spreading code to hide multiple information into a cover image without crosstalks and as a result, it can have lower decoding error and higher robustness to noise because there is no cross correlation between the codes. Also, by making use of the optical correlator-based extraction method, the real-time extraction of the hidden data can be possible. From some experimental results, a possibility of implementing a new robust information hiding and decoding system by using the complex phase codes and the optical correlator is suggested.

Paper Details

Date Published: 19 April 2002
PDF: 9 pages
Proc. SPIE 4677, Optical Security and Counterfeit Deterrence Techniques IV, (19 April 2002); doi: 10.1117/12.462729
Show Author Affiliations
Jung-Jin Kim, Kwangwoon Univ. (South Korea)
Jin-Hyug Choi, Kwangwoon Univ. (South Korea)
Eun-Soo Kim, Kwangwoon Univ. (South Korea)

Published in SPIE Proceedings Vol. 4677:
Optical Security and Counterfeit Deterrence Techniques IV
Rudolf L. van Renesse, Editor(s)

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