Paper
3 June 2004 A new low-resolution and robust digital watermarking technique for the personalization of travel documents
Author Affiliations +
Proceedings Volume 5310, Optical Security and Counterfeit Deterrence Techniques V; (2004) https://doi.org/10.1117/12.527100
Event: Electronic Imaging 2004, 2004, San Jose, California, United States
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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander Herrigel, Sviatoslav V. Voloshynovskiy, and Yuriy B. Rytsar "A new low-resolution and robust digital watermarking technique for the personalization of travel documents", Proc. SPIE 5310, Optical Security and Counterfeit Deterrence Techniques V, (3 June 2004); https://doi.org/10.1117/12.527100
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KEYWORDS
Digital watermarking

Computer programming

Wavelets

Image processing

Discrete wavelet transforms

Data modeling

Modulation

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