نتایج جستجو برای: multiplicative video watermarking

تعداد نتایج: 193693  

2002
Iwan Setyawan Reginald L. Lagendijk

Digital video data distribution through the internet is becoming more common. Film trailers, video clips and even video footage from computer and video games are now seen as very powerful means to boost sales of the aforementioned products. These materials need to be protected to avoid copyright infringement issues. However, these materials are encoded at a low bit-rate to facilitate internet d...

Journal: :IEEE Computer Graphics and Applications 1999
Christoph Busch Wolfgang Funk Stephen D. Wolthusen

Digital Watermarking: ~ From Concepts to \ ’ . Real-Time Video Amdications II--r digital watermarking field was born around the same time that the World Wide Web started its phenomenal growth. In recent years, digital watermarking has become increasingly applied to hide information in digital multimedia data, thus enlisting the water-marking technology in the difficult fight against intellectua...

2003
P. W. Chan Michael R. Lyu

We present a new DWT-based blind digital video watermarking scheme with scrambled watermark. Our scheme embeds different parts of a signal watermark into different scenes of a video under the wavelet domain. The features of our video watermarking algorithm are: (1) it allows blind retrieval of embedded watermark which does not need the original video; (2) the watermark is perceptually invisible...

2014
Rini T Paul

Video watermarking is well known as the process of embedding copyright information in video bit streams. It had been proposed in recent years to solve the problem of illegal manipulation and distribution of digital video. In this study, an effective, robust and imperceptible video watermarking algorithm was proposed for copyright protection. This algorithm was based on a cascade of two powerful...

Journal: :EURASIP J. Adv. Sig. Proc. 2004
Dimitrios Simitopoulos Sotirios A. Tsaftaris Nikolaos V. Boulgouris Alexia Briassouli Michael G. Strintzis

A novel technique is proposed for watermarking of MPEG-1 and MPEG-2 compressed video streams. The proposed scheme is applied directly in the domain of MPEG-1 system streams andMPEG-2 program streams (multiplexed streams). Perceptual models are used during the embedding process in order to avoid degradation of the video quality. The watermark is detected without the use of the original video seq...

2014
Sonjoy Deb Roy Xin Li Yonatan Shoshan Orly Yadid - Pecht

WATERMARKING SYSTEM FOR MPEG Mr.T.K (VLSI DESIGN, Anna University, Chennai, India,[email protected] ________________________________________________________________________________________________________ ABSTRACT-This project presents a hardware implementation of a digital watermarking system that can i information into compressed video streams in real time. The watermark embedding is p...

2007
Mohd Shahidan Abdullah Azizah Abd Manaf

In this paper, methods for embedding watermark into digital video are presented. A watermark is a signal added to digital data such as audio, video and still images that can be detected or extracted later. The existence of such a watermark can be determined only through a watermark extraction or detection algorithm. Video watermarking is a process of watermark the sequence of video frames. Vide...

2001
Iwan Setyawan Reginald L. Lagendijk

Digital video data distribution through the internet is becoming more common. Film trailers, video clips and even video footage from computer and video games are now seen as very powerful means to boost sales of the aforementioned products. These materials need to be protected to avoid copyright infringement issues. However, these materials are encoded at a low bit-rate to facilitate internet d...

2002
Arun Hampapur Kiho Hyun Ruud M. Bolle

Video copy detection is a complementary approach to watermarking. As opposed to watermarking, which relies on inserting a distinct pattern into the video stream, video copy detection techniques match content-based signatures to detect copies of video. Existing typical content-based copy detection schemes have relied on image matching. This paper proposes two new sequence-matching techniques for...

2009
Gerhard Goos Juris Hartmanis Jan van Leeuwen David Hutchison Josef Kittler Jon M. Kleinberg John C. Mitchell Gerhard Weikum Jessica Fridrich

A problem of considerable theoretical interest in digital watermarking is that of asymmetric, or zero-knowledge watermarking. In this problem, we wish to embed a watermark in a piece of multimedia and later prove that we have done so, but without revealing information that can be used by an adversary to remove the signal later. In this paper we develop a watermarking system based on the ambigui...

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