DMCA
Optical and digital technique for watermark detection (2003)
| Venue: | Proceedings of SPIE, Optical Information Systems 5202 |
| Citations: | 3 - 1 self |
BibTeX
@INPROCEEDINGS{Mooney03opticaland,
author = {Aidan Mooney and John G. Keating},
title = {Optical and digital technique for watermark detection},
booktitle = {Proceedings of SPIE, Optical Information Systems 5202},
year = {2003},
pages = {97--105}
}
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Abstract
A digital watermark is a visible, or preferably invisible, identification code that is permanently embedded in some digital data to prove owner authentication and provide protection of that document. In this paper we utilize a watermark generation technique based on the use of chaotic functions and the motivation for using these functions is presented. The technique used for watermark embedding is also described, together with a watermark detection scheme based on an optical Matched Filter correlator. We provide results of optical simulations of the watermark detection scheme and show that correlation-based detection is an excellent method for detecting chaotically-generated watermarks embedded in the Fourier domain using multiplicative embedding. We also show that it is possible to detect chaotically-generated watermarks in images that have been subjected to noise.
Keyphrases
watermark detection digital technique chaotically-generated watermark watermark detection scheme excellent method multiplicative embedding watermark embedding chaotic function digital watermark optical simulation correlation-based detection fourier domain digital data optical matched filter correlator watermark generation technique identification code owner authentication
