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Dissertations / Theses on the topic 'Video Watermarking'

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1

Khoshdani, Pedram. "Watermarking Video Game Textures." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4751.

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How amazing would it be to prevent illegal copies of computer games? Game developers work with the hope that they can make good profit out of their games, but when they know that they would not sell much they will be so disappointed and that is because once a few original copies of their games are released, soon or late, there will be illegal copies available in the market. Working on how to distinguish between a legal copy and an illegal copy is the general topic of this thesis.<br>In a game there are many images and textures used for graphical purposes. One of the most recent texture file ex
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2

Wang, Yulin. "Image and video watermarking." Thesis, Queen Mary, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416655.

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Damnjanovic, Ivan. "Watermarking of MPEG2 video streams." Thesis, Queen Mary, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429990.

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4

Wang, Sha. "Video quality measurement using digital watermarking." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/27076.

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A 3-level DWT (Discrete Wavelet Transform) based objective video quality measurement method is proposed based on semi-fragile digital watermarking. The watermark is embedded into the luminance components of the Intra frames of an MPEG-2 video stream, which can be treated as images. The degradation of the watermark is used to estimate the degradation of the cover work. A quantization method is used to embed the watermark. In the watermark embedding process, 10 quantization parameters are assigned to the 10 DWT decomposed blocks which are obtained by applying 3-level DWT to the target image. And
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Dumitru, Corneliu Octavian. "Noise sources in robust uncompressed video watermarking." Phd thesis, Institut National des Télécommunications, 2010. http://tel.archives-ouvertes.fr/tel-00541755.

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Cette thèse traite de ce verrou théorique pour des vidéos naturelles. Les contributions scientifiques développées ont permis : 1. De réfuter mathématiquement le modèle gaussien en général adopté dans la littérature pour représenter le bruit de canal ; 2. D'établir pour la première fois, le caractère stationnaire des processus aléatoires représentant le bruit de canal, la méthode développée étant indépendante du type de données, de leur traitement et de la procédure d'estimation ; 3. De proposer une méthodologie de modélisation du bruit de canal à partir d'un mélange de gaussiennes pour une tra
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George, Mercy. "Spread spectrum watermarking for images and video." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0006/MQ46574.pdf.

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7

Earl, John William. "Image and video watermarking with overcomplete transforms." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613316.

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Chammem, Afef. "Robust watermarking techniques for stereoscopic video protection." Phd thesis, Institut National des Télécommunications, 2013. http://tel.archives-ouvertes.fr/tel-00917964.

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The explosion in stereoscopic video distribution increases the concerns over its copyright protection. Watermarking can be considered as the most flexible property right protection technology. The watermarking applicative issue is to reach the trade-off between the properties of transparency, robustness, data payload and computational cost. While the capturing and displaying of the 3D content are solely based on the two left/right views, some alternative representations, like the disparity maps should also be considered during transmission/storage. A specific study on the optimal (with respect
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Chammem, Afef. "Robust watermarking techniques for stereoscopic video protection." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2013. http://www.theses.fr/2013TELE0008.

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La multiplication des contenus stéréoscopique augmente les risques de piratage numérique. La solution technologique par tatouage relève ce défi. En pratique, le défi d’une approche de tatouage est d'atteindre l’équilibre fonctionnel entre la transparence, la robustesse, la quantité d’information insérée et le coût de calcul. Tandis que la capture et l'affichage du contenu 3D ne sont fondées que sur les deux vues gauche/droite, des représentations alternatives, comme les cartes de disparité devrait également être envisagée lors de la transmission/stockage. Une étude spécifique sur le domaine d’
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Dumitru, Corneliu Octavian. "Noise sources in robust uncompressed video watermarking." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2010. http://www.theses.fr/2010TELE0001.

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Cette thèse traite de ce verrou théorique pour des vidéos naturelles. Les contributions scientifiques développées ont permis : 1. De réfuter mathématiquement le modèle gaussien en général adopté dans la littérature pour représenter le bruit de canal ; 2. D’établir pour la première fois, le caractère stationnaire des processus aléatoires représentant le bruit de canal, la méthode développée étant indépendante du type de données, de leur traitement et de la procédure d’estimation ; 3. De proposer une méthodologie de modélisation du bruit de canal à partir d’un mélange de gaussiennes pour une tra
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11

Wang, Sha. "Digital Watermarking Based Image and Video Quality Evaluation." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/23988.

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Image and video quality evaluation is very important. In applications involving signal transmission, the Reduced- or No-Reference quality metrics are generally more practical than the Full-Reference metrics. Digital watermarking based quality evaluation emerges as a potential Reduced- or No-Reference quality metric, which estimates signal quality by assessing the degradation of the embedded watermark. Since the watermark contains a small amount of information compared to the cover signal, performing accurate signal quality evaluation is a challenging task. Meanwhile, the watermarking process c
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12

Coria, Mendoza Lino Evgueni. "Low-complexity methods for image and video watermarking." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/571.

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For digital media, the risk of piracy is aggravated by the ease to copy and distribute the content. Watermarking has become the technology of choice for discouraging people from creating illegal copies of digital content. Watermarking is the practice of imperceptibly altering the media content by embedding a message, which can be used to identify the owner of that content. A watermark message can also be a set of instructions for the display equipment, providing information about the content’s usage restrictions. Several applications are considered and three watermarking solutions are provided
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13

Doërr, Gwenaël. "Security issue and collusion attacks in video watermarking." Nice, 2005. http://www.theses.fr/2005NICE4016.

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Ten years after its infancy, digital watermarking is still considered as a young technology. Despite the fact that it has been introduced for security-related applications such as copyright protection, almost no study has been conducted to assert the survival of embedded watermarks in a hostile environment. In this thesis, it will be shown that this lack of evaluation has led to critical security pitfalls against statistical analysis, also referred to as collusion attacks. Such attacks typically consider several watermarked documents and combine them to produce unwatermarked content. This thre
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Shahid, Muhammad Zafar Javed. "Protection of Scalable Video by Encryption and Watermarking." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20074.

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Le champ du traitement des images et des vidéos attire l'attention depuis les deux dernières décennies. Ce champ couvre maintenant un spectre énorme d'applications comme la TV 3D, la télé-surveillance, la vision par ordinateur, l'imagerie médicale, la compression, la transmission, etc. En ce début de vingt et unième siècle nous sommes témoins d'une révolution importante. Les largeurs de bande des réseaux, les capacités de mémoire et les capacités de calcul ont été fortement augmentés durant cette période. Un client peut avoir un débit de plus de 100~mbps tandis qu'un autre peut utiliser une li
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Liu, Yan. "Digital Video Watermarking Robust to Geometric Attacks and Compressions." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20281.

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This thesis focuses on video watermarking robust against geometric attacks and video compressions. In addition to the requirements for an image watermarking algorithm, a digital video watermarking algorithm has to be robust against advanced video compressions, frame loss, frame swapping, aspect ratio change, frame rate change, intra- and inter-frame filtering, etc. Video compression, especially, the most efficient compression standard, H.264, and geometric attacks, such as rotation and cropping, frame aspect ratio change, and translation, are considered the most challenging attacks for video w
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Agung, I. Wiseto P. "Watermarking and content protection for digital images and video." Thesis, University of Surrey, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250800.

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17

Serdean, Cristian Vasile. "Spread spectrum-based video watermarking algorithms for copyright protection." Thesis, University of Plymouth, 2002. http://hdl.handle.net/10026.1/2263.

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Digital technologies know an unprecedented expansion in the last years. The consumer can now benefit from hardware and software which was considered state-of-the-art several years ago. The advantages offered by the digital technologies are major but the same digital technology opens the door for unlimited piracy. Copying an analogue VCR tape was certainly possible and relatively easy, in spite of various forms of protection, but due to the analogue environment, the subsequent copies had an inherent loss in quality. This was a natural way of limiting the multiple copying of a video material. Wi
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18

Bhowmik, Deepayan. "Robust watermarking techniques for scalable coded image and video." Thesis, University of Sheffield, 2011. http://etheses.whiterose.ac.uk/1526/.

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In scalable image/video coding, high resolution content is encoded to the highest visual quality and the bit-streams are adapted to cater various communication channels, display devices and usage requirements. These content adaptations, which include quality, resolution and frame rate scaling may also affect the content protection data, such as, watermarks and are considered as a potential watermark attack. In this thesis, research on robust watermarking techniques for scalable coded image and video, are proposed and the improvements in robustness against various content adaptation attacks, su
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Bergkvist, David. "Implementation of a Watermarking Algorithm for H.264 Video Sequences." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2352.

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<p>In today's video delivery and broadcast networks, issues of copyright protection have become more urgent than in analog times, since the copying of digital video does not result in the decrease in quality that occurs when analog video is copied. </p><p>One method of copyright protection is to embed a digital code, a"watermark", into the video sequence. The watermark can then unambiguously identify the copyright holder of the video sequence. Watermarks can also be used to identify the purchaser of a video sequence, which is called "fingerprinting". </p><p>The objective of this master thesis
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Noorkami, Maneli. "Secure and Robust Compressed-Domain Video Watermarking for H.264." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16267.

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The objective of this thesis is to present a robust watermarking algorithm for H.264 and to address challenges in compressed-domain video watermarking. To embed a perceptually invisible watermark in highly compressed H.264 video, we use a human visual model. We extend Watson's human visual model developed for 8x8 DCT block to the 4x4 block used in H.264. In addition, we use P-frames to increase the watermark payload. The challenge in embedding the watermark in P-frames is that the video bit rate can increase significantly. By using the structure of the encoder, we significantly reduce the incr
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Van, Huyssteen Rudolph Hendrik. "Comparative evaluation of video watermarking techniques in the uncompressed domain." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71842.

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Thesis (MScEng)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Electronic watermarking is a method whereby information can be imperceptibly embedded into electronic media, while ideally being robust against common signal manipulations and intentional attacks to remove the embedded watermark. This study evaluates the characteristics of uncompressed video watermarking techniques in terms of visual characteristics, computational complexity and robustness against attacks and signal manipulations. The foundations of video watermarking are reviewed, followed by a survey of existing vide
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Pröfrock, Dima. "Video-watermarking auf Basis der geometrischen Struktur unter besonderer Berücksichtigung starker Kompression." Berlin mbv, 2008. http://d-nb.info/99302419X/04.

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Cai, Wei Kougianos Elias Mohanty Saraju. "FPGA prototyping of a watermarking algorithm for MPEG-4." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-3695.

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Hanson, Anthony. "General Purpose Computing in Gpu - a Watermarking Case Study." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700078/.

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The purpose of this project is to explore the GPU for general purpose computing. The GPU is a massively parallel computing device that has a high-throughput, exhibits high arithmetic intensity, has a large market presence, and with the increasing computation power being added to it each year through innovations, the GPU is a perfect candidate to complement the CPU in performing computations. The GPU follows the single instruction multiple data (SIMD) model for applying operations on its data. This model allows the GPU to be very useful for assisting the CPU in performing computations on dat
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Su, Karen. "Digital video watermarking principles for resistance to collusion and interpolation attacks." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63030.pdf.

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Winne, Dominique A. "Digital watermarking for time-based authentication of low bit-rate video." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414123.

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Cai, Wei. "FPGA Prototyping of a Watermarking Algorithm for MPEG-4." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3695/.

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In the immediate future, multimedia product distribution through the Internet will become main stream. However, it can also have the side effect of unauthorized duplication and distribution of multimedia products. That effect could be a critical challenge to the legal ownership of copyright and intellectual property. Many schemes have been proposed to address these issues; one is digital watermarking which is appropriate for image and video copyright protection. Videos distributed via the Internet must be processed by compression for low bit rate, due to bandwidth limitations. The most widely
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Koz, Alper. "Watermarking For 3d Representations." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608886/index.pdf.

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In this thesis, a number of novel watermarking techniques for different 3D representations are presented. A novel watermarking method is proposed for the mono-view video, which might be interpreted as the basic implicit representation of 3D scenes. The proposed method solves the common flickering problem in the existing video watermarking schemes by means of adjusting the watermark strength with respect to temporal contrast thresholds of human visual system (HVS), which define the maximum invisible distortions in the temporal direction. The experimental results indicate that the proposed metho
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Stenborg, Karl-Göran. "Distribution and Individual Watermarking of Streamed Content for Copy Protection." Licentiate thesis, Linköping University, Linköping University, Image Coding, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-4592.

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<p>Media such as movies and images are nowadays produced and distributed digitally. It is usually simple to make copies of digital content. Consequently illegal pirate copies can be duplicated and distributed in large quantities. One way to deter authorized content receivers from illegally redistributing the media is watermarking. If individual watermarks are contained in the digital media and a receiver is a pirate and redistributes it, the pirate at the same time distributes his identity. Thus a located pirate copy can be traced back to the pirate. The watermarked media should otherwise be i
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Rehman, Abdul. "Practical watermarking for multimedia traitor tracing." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2024. http://www.theses.fr/2024IMTA0450.

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La popularité des téléphones portables, des appareils photo numériques et des ordinateurs personnels a modifié la création, la consommation et le partage des contenus multimédias. Cela pose le problème de la duplication à l’infini, du téléchargement non autorisé et de la redistribution illégale. À l’ère de la distribution généralisée des informations numériques, il est plus important que jamais de développer des solutions fiables et solides pour éviter la distribution illégale. Un système d’empreinte multimédia est un moyen efficace de protéger le contenu multimédia et d’empêcher la distributi
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Wang, Wenyi. "Hiding Depth Map in JPEG Image and MPEG-2 Video." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20360.

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Digital watermarking of multimedia content has been proposed as a method for different applications such as copyright protection, content authentication, transaction tracking and data hiding. In this thesis, we propose a lossless watermarking approach based on Discrete Cosine Transform (DCT) for a new application of watermarking. A depth map obtained from a stereoscopic image pair is embedded into one of the two images using a reversible watermarking algorithm. Different from existing approaches which hide depth map in spatial domain, the depth information is hidden in the quantized DCT dom
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Kaufman, Jason R. "Digital video watermarking using singular value decomposition and two-dimensional principal component analysis." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1141855950.

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Koubaa, Mohamed. "Tatouage robuste de vidéo basé sur la notion de régions d'intérêt." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14117/document.

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Le travail présenté dans ce mémoire a pour objectif le développement de nouvelles approches permettant d'introduire de manière robuste des marques dans une vidéo. Il s'agira tout d'abord de sélectionner les zones des images les plus appropriées à l'introduction du tatouage. Pour cela, plusieurs critères devront être pris en compte. Tout d'abord, lorsqu'une marque est introduite dans une zone de l'image, il est nécessaire d'introduire la même marque au même endroit sur toutes les images de la séquence. En effet, dans le cas contraire, un simple filtrage temporel dans le sens du mouvement permet
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Salotto, Antony. "The design and implementation of a prototype digital video watermarking scheme with dynamic traitor tracing." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96068.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: We design and implement a prototype digital watermarking scheme that uses spread-transform dither modulation to embed hidden binary message signals into uncompressed digital video signals. The hidden messages are intended to identify the original recipient of a particular copy of a digital video, so that in the event that a pirate copy of that video is found, the recipient can be incriminated as a pirate. We test the ability of the watermark signal to survive various modifications to the watermarked video, including lossy
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Baudry, Séverine. "Stratégies de codage de canal pour le tatouage de video." Paris, ENST, 2002. http://www.theses.fr/2002ENST0006.

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Belhaj, Abdallah Maher. "Enriched in-band video : from theoretical modeling to new services for the society of knowledge." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2011. http://www.theses.fr/2011TELE0030.

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Cette thèse a pour ambition d’explorer d’un point de vue théorique et applicatif le paradigme de l’in-band enrichment. Emergence de la société des connaissances, le concept de média enrichi renvoie à toute association de métadonnée (textuelle, audiovisuelle, code exécutable) avec un média d’origine. Un tel principe peut être déployé dans une large variété d’applications comme la TVNi - Télévision Numérique interactive, les jeux ou la fouille des données. Le concept de l’inband enrichement conçu et développé par M. Mitrea et son équipe au Département ARTEMIS de Télécom SudParis, suppose que les
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Belhaj, Abdallah Maher. "Enriched in-band video : from theoretical modeling to new services for the society of knowledge." Thesis, Evry, Institut national des télécommunications, 2011. http://www.theses.fr/2011TELE0030/document.

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Cette thèse a pour ambition d’explorer d’un point de vue théorique et applicatif le paradigme de l’in-band enrichment. Emergence de la société des connaissances, le concept de média enrichi renvoie à toute association de métadonnée (textuelle, audiovisuelle, code exécutable) avec un média d’origine. Un tel principe peut être déployé dans une large variété d’applications comme la TVNi - Télévision Numérique interactive, les jeux ou la fouille des données. Le concept de l’inband enrichement conçu et développé par M. Mitrea et son équipe au Département ARTEMIS de Télécom SudParis, suppose que les
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Zlomek, Martin. "Video Watermarking." Master's thesis, 2007. http://www.nusl.cz/ntk/nusl-272461.

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Nazev prace: Watermarking videa Autor: Martin Zlomek Katedra (ustav): Kabinet software a vyuky informatiky Vedouci diplomove prace: RNDr. Josef Pelikan e-mail vedouci'ho: josef.pelikan@mff.cuni.cz Abstrakt: Navrzeny a implementovany byly tfi ruzne metody pro watermarking video sekvencf, ktere jsou komprimovany podle standardu H.264. Dve z techto metod reprezentujf metody, ktere watermark vkladaji ve frekvencni oblasti, zati'mco tfeti path' mezi metody, ktere watermark vkladaji do obrazove oblasti. Vkladani watermarku ve frekvencni oblasti probiha zmenou transformacnich koeficientu, ktere jsou
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Chen, Yu-hau, and 陳昱豪. "Digital Image and Video Watermarking." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/30447801910040935770.

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陳淵祥. "Progressive Watermarking in Scalable Video." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/91219865378921704804.

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Wu, Chih-Liang, and 吳志良. "Robust Video Watermarking in the Compressed Domain." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/41778266161909578777.

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碩士<br>國立中正大學<br>電機工程研究所<br>88<br>Owing to the limitations of bandwidth on the Internet, it is necessary to compress and encode digital data for the sake of transmission, storage and other applications. Digital data is easy to save, encode and process. However, it may suffer from copyright or other intellectual property problem. Therefore, the protection of property right of digital data is a critical issue. Watermarking techniques, applied to protect the intellectual property right of image or video data, have been widely discussed. Generally speaking, watermarking algorithm can be
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Weng, Hsiao-Jen, and 翁筱貞. "Key-based Video Watermarking on MPEG-2." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/77419976232724165257.

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碩士<br>國立中央大學<br>電機工程研究所<br>91<br>In this thesis, we propose a key-based video watermarking system in which the watermark embedding and the video encoding are processed at the same time on MPEG-2. Since the watermark information would propagate to P/B frames through the motion compensated coding, the watermark is embedded in a single I frame but can be extracted from all frames in the same group of pictures (GOP). The watermark is embedded in the low frequency DCT coefficients based on the block polarity. The block polarity is operated with the watermark by Tri-state XOR to generate the secre
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Chang, Chia Pei, and 張嘉珮. "Object Segmentation and Watermarking for Video Coding." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/71504314442827842540.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>90<br>MPEG-4 is a content-based video coding standard. It focuses on offering video storage and transmission over the channel at very low bit-rate. In MPEG-4 standard, the video is composed of many objects. Before transmitted, each object is coded through texture coding and shape coding individually. Users can synthesize a new video sequence with different objects at the receiver end.  In this thesis, we develop a segmentation system and watermarking techniques for video objects. The proposed segmentation system is based on change detection. With some sim
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Yi-RenFang and 方怡仁. "Watermarking in Video Using Mean Modulation Technique." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6cwe8b.

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碩士<br>國立成功大學<br>工程科學系碩士在職專班<br>106<br>Since digital video data on the Internet is easily stored, copied transmitted, and modified. Various unauthorized digital data are incessantly illegally acquired and forged. It results in a large loss for the rights of authors and owners. It also results a very negative impact on business development, and also affects the economic benefits of business. Therefore, intellectual property protection for digital data is a very important issue and hot research topic. Digital watermark is one of the good ways to maintain media copyright and integrity. The purpose
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Chen, Yi-Ming, and 陳毅銘. "A Public Video Watermarking Techniquebased on Wavelet Transform." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/xybxh2.

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碩士<br>國立中央大學<br>資訊工程研究所<br>94<br>Watermarking is a technique to hide secret information in digital media. The information can prove ownership, identify a misappropriating person, trace the marked document’s dissemination through the network, or simply inform users about the rights holder or the permitted use of the media. Video watermarking introduces several issues which are not presented in image watermarking. Due to large amounts of data and inherent redundancy between video frames, video watermarking encounters many problems such as lost of watermark information, bad robustness, and etc. I
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Hsu, Yu-Chang, and 許育彰. "Digital Watermarking for H.264 Video Stream Authentication." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/93524958511397394393.

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碩士<br>國立彰化師範大學<br>電機工程學系<br>96<br>H.264/AVC is the currently state-of-the-art video compression standard performing significant improvement in coding efficiency and quality compared to other existing standard, such as MPEG-4 and H.263. The standard adapts a lot of novel techniques, like intra prediction, inter prediction and Integer DCT (Integer Discrete Cosine Transform), to exploit high operational complexity for reducing spatial and temporal messages. To authenticate the content of video sequences, many watermarking scheme have been investigated to verify the integrity of video sequence. Ho
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Li, Yi-Lan, and 李意嵐. "Video Watermarking in Promotion of Imperceptibility and Robustness." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/78547926181637116109.

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碩士<br>國立臺北教育大學<br>資訊科學系碩士班<br>98<br>The period of the digital communication, use and dissemination of information has significant development. Much of the meaningful information or the valuable data is from electronic information have replaced previous papers. However, digital data have transmission efficiently, the data may be altered and copied, even the issue of intellectual property rights involved. Unlimited reproduction of digital copies may evolve into a serious problem. Therefore, the main challenge of intellectual property rights is the digital data prevent unauthorized reproduction a
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Lai, Chin-Jen, and 賴致仁. "H.264 video watermarking with secret image sharing." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/78848435908125686563.

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碩士<br>國立宜蘭大學<br>資訊工程研究所碩士班<br>96<br>H.264 is a new advanced standard. The applications of video on Internet or wireless networks become very popular nowadays. However, these digital contents can be easily modified and copied by end users. Hence copyright protection, copy control and integrity verification has become important issues in recent years. Digital watermarking is a means of claiming ownership of a data source. Therefore, digital watermarking can solve the problem. In the proposed system, watermark will be through pre-processing. In order to enhance security of system, our system use
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Li, Jung-Hong, and 李俊宏. "H.264 video compression-domain watermarking and application." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/k5pcr5.

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碩士<br>國立虎尾科技大學<br>資訊工程研究所<br>99<br>In this thesis, two kinds of novel data hiding schemes based on H.264/AVC video compression standard are presented. In each scheme, two different algorithms with varying processing details are designed. The design concepts are based on the properties found from the symbols of context adaptive variable length coding in the H.264/AVC coding standard in order for the controllable distortion when hiding data into these symbols. The proposed schemes take rate distortion optimization into account in order to minimize the changes on both the reproduced video quality
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Lee, Jian-Wei, and 李建緯. "Collusion-resistant Multi-channel Video watermarking using Blind threshold." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/71157181381943867754.

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碩士<br>國立清華大學<br>資訊工程學系<br>92<br>ABSTRACT This paper proposes an effective approach for video watermarking. Video watermarking plays an important role in many applications such as copy control, owner identification, broadcast monitoring, and so on. The main difficulty comes from the temporal dimension because it provides useful information for attackers to remove or desynchronize the embedding watermark. We propose a video watermarking method motivated from the spatially localized image-dependent (SLIDE) sub-frame watermarking system to resist the linear collusion attacks and de-synchronization
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