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http://dx.doi.org/10.6109/jkiice.2007.11.7.1267

Analysis of CGH and Watermarking Method using Global 2DDCT  

Choi, Hyun-Jun (광운대학교 3D Media Research Lab.)
Seo, Young-Ho (한성대학교 정보통신공학과)
Yoo, Ji-Sang (광운대학교 3D Media Research Lab.)
Kim, Dong-Wook (광운대학교 3D Media Research Lab.)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.11, no.7, 2007 , pp. 1267-1274 More about this Journal
Abstract
In this paper, we propose a digital watermarking algorithm for digital hologram generated by computer generated hologram(CGH) method. Digital hologram generated by a computer calculation(CGH) is one of the most expensive contents and its usage is being expanded. Thus, it is highly necessary to protect the ownership of digital hologram. In this paper two digital watermarking schemes are introduced hologram-domain and global 2DDCT-domain scheme. Proposed watermarking scheme showed very high imperceptibility and quite high robustness against the attacks. The purpose of this paper is to introduce these global 2DDCT based watermarking schemes. Thus, we expect that these and the contents in this paper can be very useful bases for the further digital watermarking schemes of the digital holograms.
Keywords
digital hologram; 3D; CGH; DCT; digital watermarking;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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