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Proceedings Paper

A new low-resolution and robust digital watermarking technique for the personalization of travel documents
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Paper Abstract

This paper presents a new approach for the protection of travel documents. We propose a digital watermarking technique which requires for the verification process a low scanning resolution of at least 72 DPI. The approach is based on the wavelet decomposition and supports three key aspects: Message encoding is accomplished by iterative error correction codes satisfying a nearly optimal channel capacity. This encoding is based on specific modulation that requires for the implementation a significant lower complexity as the often applied M-array modulation. The watermark embedding is applied in the wavelet domain based on stochastic driven perceptional criteria for a good quality and invisibility. The watermarking process is considered as a communication process with side information. The approach utilizes two different watermarks, one for the channel state information estimation and one for the informative watermark which carries as a payload the hidden information.

Paper Details

Date Published: 3 June 2004
PDF: 10 pages
Proc. SPIE 5310, Optical Security and Counterfeit Deterrence Techniques V, (3 June 2004); doi: 10.1117/12.527100
Show Author Affiliations
Alexander Herrigel, Up-Great AG (Switzerland)
Sviatoslav V. Voloshynovskiy, Univ. de Geneve (Switzerland)
Yuriy B. Rytsar, Univ. de Geneve (Switzerland)


Published in SPIE Proceedings Vol. 5310:
Optical Security and Counterfeit Deterrence Techniques V
Rudolf L. van Renesse, Editor(s)

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