Correlation-based watermarking by a digital holographic technique

Chau Jern Cheng; Li Chien Lin

doi:10.1117/1.1831191

Correlation-based watermarking by a digital holographic technique

Chau Jern Cheng^*, Li Chien Lin

^*此作品的通信作者

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

4 引文斯高帕斯（Scopus）

摘要

We propose and demonstrate an optical watermarking scheme using a digital holographic technique. The holographic watermark is constructed by an off-axis diffuse-type hologram and embedded into a cover image with appropriate weighting. Detection of the hidden mark is optically implemented using a VanderLugt correlator with the watermarked matched filter. Detected correlation is spatially separable and avoids interference from the cover image.

原文	英語
頁（從 - 到）	1-2
頁數	2
期刊	Optical Engineering
卷	44
發行號	1
DOIs	https://doi.org/10.1117/1.1831191
出版狀態	已發佈 - 2005 1月
對外發佈	是

ASJC Scopus subject areas

原子與分子物理與光學
工程 (全部)

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abstract = "We propose and demonstrate an optical watermarking scheme using a digital holographic technique. The holographic watermark is constructed by an off-axis diffuse-type hologram and embedded into a cover image with appropriate weighting. Detection of the hidden mark is optically implemented using a VanderLugt correlator with the watermarked matched filter. Detected correlation is spatially separable and avoids interference from the cover image.",

keywords = "Digital holography, Optical correlators, Watermarking",

author = "Cheng, {Chau Jern} and Lin, {Li Chien}",

note = "Funding Information: This work was supported by the National Science Council of the Republic of China, Taiwan, under Contract No. NSC93-2215-E-027-013.",

year = "2005",

month = jan,

doi = "10.1117/1.1831191",

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AU - Lin, Li Chien

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N2 - We propose and demonstrate an optical watermarking scheme using a digital holographic technique. The holographic watermark is constructed by an off-axis diffuse-type hologram and embedded into a cover image with appropriate weighting. Detection of the hidden mark is optically implemented using a VanderLugt correlator with the watermarked matched filter. Detected correlation is spatially separable and avoids interference from the cover image.

AB - We propose and demonstrate an optical watermarking scheme using a digital holographic technique. The holographic watermark is constructed by an off-axis diffuse-type hologram and embedded into a cover image with appropriate weighting. Detection of the hidden mark is optically implemented using a VanderLugt correlator with the watermarked matched filter. Detected correlation is spatially separable and avoids interference from the cover image.

KW - Digital holography

KW - Optical correlators

KW - Watermarking

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Correlation-based watermarking by a digital holographic technique

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