NDLI: A DWT-based object watermarking system for MPEG-4 video streams

Content Provider	IEEE Xplore Digital Library
Author	Piva, A. Caldelli, R. De Rosa, A.
Copyright Year	2000
Description	Author affiliation: Dipt. di Electtronica e Telecommun., Univ. di Firenze, Italy (Piva, A.)
Abstract	The MPEG-4 standard is revealing very attractive for a large set of applications. In some of them a copy protection system allowing to control the distribution of multimedia data is required. A new technology useful for copyright protection is watermarking: a digital code (watermark), indicating the copyright owner, is directly embedded into the video signal. The possibility of the MPEG-4 standard to directly access objects within a video sequence introduces a constraint to the watermarking process: even if a video object is transferred from a sequence to another, the copyright data of the single object has to be correctly detected. Another requirement is that, in order to be robust against format conversions, the watermark has to be inserted before compression. The method proposed in this paper satisfies the previous requirements by relying on an image watermarking algorithm which embeds the code in the discrete wavelet transform of each frame.
Starting Page	5
Ending Page	8
File Size	451545
Page Count	4
File Format	PDF
ISBN	0780362977
ISSN	15224880
DOI	10.1109/ICIP.2000.899264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-10
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Discrete wavelet transforms Watermarking MPEG 4 Standard Streaming media Control systems Multimedia systems Copyright protection Video sequences Video compression Object detection
Content Type	Text
Resource Type	Article

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