Multimedia Watermarking Techniques


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However, the threat of piracy looms as a major problem with digital distribution and storage technologies. Multimedia Watermarking Techniques and Applications covers all current and future trends in the design of modern systems that use watermarking to protect multimedia content.

1st Edition

Containing the works of contributing authors who are worldwide experts in the field, this volume is intended for researchers and practitioners, as well as for those who want a broad understanding of multimedia security. In the wake of the explosive growth of digital entertainment and Internet applications, this book is the definitive resource on the subject for scientists, researchers, programmers, engineers, business managers, entrepreneurs, and investors.


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ISBN 13: 9780849372131

Close X. In the first part, we propose new image watermarking algorithms that are robust against a wide range of intentional and geometric attacks, flexible in data embedding, and computationally fast. The core idea behind our proposed watermarking schemes is to use transforms that have different properties which can effectively match various aspects of the signal's frequencies. We embed the watermark many times in all the frequencies to provide better robustness against attacks and increase the difficulty of destroying the watermark.

The second part of the thesis is devoted to a joint exploitation of the geometry and topology of 3D objects and its subsequent application to 3D watermarking. The key idea consists of capturing the geometric structure of a 3D mesh in the spectral domain by computing the eigen-decomposition of the mesh Laplacian matrix. We also use the fact that the global shape features of a 3D model may be reconstructed using small low-frequency spectral coefficients.

The eigen-analysis of the mesh Laplacian matrix is, however, prohibitively expensive. To lift this limitation, we first partition the 3D mesh into smaller 3D sub-meshes, and then we repeat the watermark embedding process as much as possible in the spectral coefficients of the compressed 3D sub-meshes. The visual error of the watermarked 3D model is evaluated by computing a nonlinear visual error metric between the original 3D model and the watermarked model obtained by our proposed algorithm.

Projets de recherche

The third part of the thesis is devoted to video watermarking. We propose robust, hybrid scene-based MPEG video watermarking techniques based on a high-order tensor singular value decomposition of the video image sequences. The key idea behind our approaches is to use the scene change analysis to embed the watermark repeatedly in a fixed number of the intra-frames. These intra-frames are represented as 3D tensors with two dimensions in space and one dimension in time. We embed the watermark information in the singular values of these high-order tensors, which have good stability and represent the video properties.

Multimedia Watermarking Techniques and Applications - CRC Press Book

Illustration of numerical experiments with synthetic and real data are provided to demonstrate the potential and the much improved performance of the proposed algorithms in multimedia watermarking. Repository Staff Only: item control page. Spectrum Research Repository. Spectrum Libraries Concordia Advanced Search.

Multimedia Watermarking Techniques Multimedia Watermarking Techniques
Multimedia Watermarking Techniques Multimedia Watermarking Techniques
Multimedia Watermarking Techniques Multimedia Watermarking Techniques
Multimedia Watermarking Techniques Multimedia Watermarking Techniques
Multimedia Watermarking Techniques Multimedia Watermarking Techniques
Multimedia Watermarking Techniques Multimedia Watermarking Techniques
Multimedia Watermarking Techniques Multimedia Watermarking Techniques
Multimedia Watermarking Techniques Multimedia Watermarking Techniques

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