NDLI: Spread spectrum based spatial watermarking using partial embedding and reduced dynamic range detection

Content Provider	IEEE Xplore Digital Library
Author	Trammanontikul, P. Amornraksa, T.
Copyright Year	2004
Description	Author affiliation: Dept. of Comput. Eng., King Mongkut's Univ. of Technol., Bangkok, Thailand (Trammanontikul, P.)
Abstract	In this paper, a spread spectrum based watermarking using partial embedding and reduced dynamic range detection is proposed for uncompressed video in spatial domain. Conceptually, by properly reducing the variance of host media, lower bit error rate and smaller chip-rate can be obtained. A technique of variance reduction is therefore applied by decreasing a dynamic range of the host signal. Moreover, when using the proposed technique in which some pixels having particular values are considered and modified, higher quality of the watermarked media in term of PSNR is obtained. The results show that without knowledge of original media, the embedded watermark can be recovered with a smaller chip-rate, compared to the traditional spread spectrum based methods. The improved performance can still be achieved even if various strengths of attack, i.e. addition of Gaussian distributed noise, are applied.
Starting Page	324
Ending Page	329
File Size	433443
Page Count	6
File Format	PDF
ISBN	0780385934
DOI	10.1109/ISCIT.2004.1412862
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-26
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Embedded computing PSNR Filtering Error analysis Humans Spread spectrum communication Watermarking Dynamic range Robustness Frequency domain analysis
Content Type	Text
Resource Type	Article

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