Title :
A Forensic Marking Algorithm Based on DWT-SVD Using Hologram
Author :
De, Li ; Nah, Jihah ; Kim, JongWeon
Author_Institution :
CPRI, Sangmyung Univ., South Korea
Abstract :
In this paper, a new forensic watermarking algorithm which generates digital hologram from forensic mark and embeds it into DWT-SVD domain was suggested. Forensic watermarking is used to trace the illegal distribution. For the purpose of the high capacity, off-axis hologram is generated from forensic m and the hologram is embedded into subband of the DWT domain, so that we could reduce the signal interference. Also, we improved the algorithm safety and detection performance by using SVD for the signal embedded hologram. As a result, we were able to embed 128 bits forensic mark for each step and totally 384 bits can be embedded and trace the 3 distribution steps.
Keywords :
computer forensics; discrete wavelet transforms; singular value decomposition; watermarking; DWT-SVD domain; digital hologram; forensic marking algorithm; forensic watermarking; off-axis hologram; signal embedded hologram; signal interference; Copyright protection; Data security; Discrete wavelet transforms; Forensics; Fourier transforms; Holographic optical components; Holography; Payloads; Robustness; Watermarking; DWT; Forensic Mark; Hologram; SVD;
Conference_Titel :
Multimedia, 2009. ISM '09. 11th IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-5231-6
Electronic_ISBN :
978-0-7695-3890-7
DOI :
10.1109/ISM.2009.50
