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Managing CAD Data as a Multimedia Data Type Using Digital Watermarking [chapter]

Ryutarou Ohbuchi, Hiroshi Masuda
2002 From Knowledge Intensive CAD to Knowledge Intensive Engineering  
Three-dimensional (3D) model, including 3D geometric CAD model, has come to be recognized as a "multimedia" data type, along with such data types as sound, text, still image, and movie.  ...  The methods, one based on reparameterization and the other based on knot insertion, preserves exact geometric shape of target NURBS objects. 1.  ...  For example, watermarks based on ratios of volumes of pairs of tetrahedrons are robust against affine transformation.  ... 
doi:10.1007/978-0-387-35494-1_8 fatcat:ythmsrlu7vcwxnfwnsnrdkykze

A shape-preserving data embedding algorithm for NURBS curves and surfaces

Ohbuchi, Masuda, Aono
1999 Proceedings Computer Graphics International CGI-99  
In addition to the shape-and data size-preserving data embedding algorithm for NURBS curves and surfaces, this paper outlines additional methods for embedding data in various types of parametric curves  ...  Existing data embedding algorithms for polygonal meshes and their attributes can't be applied to the majority of (geometric) computer aided design (CAD) applications, for two major reasons.  ...  We have published methods for embedding data into 3D model shape [16, 17, 18] . Out algorithms mainly targeted shapes defined by using 3D polygonal meshes.  ... 
doi:10.1109/cgi.1999.777952 dblp:conf/cgi/OhbuchiMA99 fatcat:jelakldhlzbovcwcdt7bkup5em

Information Hiding through Variance of the Parametric Orientation Underlying a B-rep Face [chapter]

Csaba Salamon, Jonathan Corney, James Ritchie
2008 Lecture Notes in Computer Science  
Boundary Representation) models used in 3D mechanical CAD systems.  ...  Watermarking technologies have been proposed for many different types of digital media. However, to this date, no viable watermarking techniques have yet emerged for the high value B-rep (i.e.  ...  Compared to other established watermarking algorithms for polygonal meshes or NURBS, our PO-watermarking scheme based on B-reps opens new ways/possibilities to hide information robustly into mechanical  ... 
doi:10.1007/978-3-540-88961-8_19 fatcat:tqkgg4civbed3amj46qv57zlm4

A New Fragile Mesh Watermarking Algorithm for Authentication [chapter]

Hao-Tian Wu, Yiu-Ming Cheung
2005 IFIP Advances in Information and Communication Technology  
In this paper, we propose a new fragile watermarking algorithm based on the global characteristics of the mesh geometry to authenticate 3D mesh models.  ...  We show that the embedded watermark is invariant to affine transformation but sensitive to other operations.  ...  In the literature , a variety of watermarking algorithms have been proposed to embed watermarks into 3D models, mainly 3D polygonal meshes.  ... 
doi:10.1007/0-387-25660-1_33 fatcat:fp4ffx3rgnhb5bnp33kiaeskdi

Watermarking mesh-based representations of 3-D objects using local moments

A.G. Bors
2006 IEEE Transactions on Image Processing  
A new methodology for fingerprinting and watermarking three-dimensional (3-D) graphical objects is proposed in this paper. The 3-D graphical objects are described by means of polygonal meshes.  ...  A neighborhood localized measure is used for selecting appropriate vertices for watermarking.  ...  Ellipsoids model second-order moment representations and have suitable invariance properties to affine transformations [30] , [31] .  ... 
doi:10.1109/tip.2005.863116 pmid:16519355 fatcat:x4sfjiiyfrao5c5i2wvioh4w6m

NonBlind Robust 3D Object Watermarking Scheme

Hassan Saleh, Nour Ashour, mohamed Kaloup, Ahmed yahya, Ahmed Emran
2018 Arab Journal of Nuclear Sciences and Applications  
This paper proposes a robust and imperceptible non-blind watermarking method for high rate embedding into 3D polygonal meshes.  ...  First, the vertices are selected for embedding if they are greater than defined threshold, and then the watermark bits are embedded directly into each vertex in spatial domain.  ...  Ohbuchi presented some watermarking algorithms for the polygonal mesh [3] and NURBS [4] in the area of ownership proof.  ... 
doi:10.21608/ajnsa.2018.3415.1076 fatcat:oufalotmnvchvkbqravhgqadi4

Wavelet-based blind watermarking of 3D models

F. Uccheddu, M. Corsini, M. Barni
2004 Proceedings of the 2004 multimedia and security workshop on Multimedia and security - MM&Sec '04  
For this reason, most of the 3D watermarking algorithms proposed so far adopt a non-blind detection. In this paper we present a new blind watermarking algorithm for 3D meshes.  ...  Watermarking of 3D meshes has received a limited attention due to the difficulties encountered in extending the algorithms developed for 1D (audio) and 2D (images and video) signals to topological complex  ...  Benedens [3] developed two methods, namely Normal Bin Encoding and Affine Invariant Embedding, both of which are based on the alteration of surface normals.  ... 
doi:10.1145/1022431.1022456 dblp:conf/mmsec/UcchedduCB04 fatcat:yszl3zpb3rhf3aajiuxfzhtrzu

Applying 3D Polygonal Mesh Watermarking for Transmission Security Protection through Sensor Networks

Roland Hu, Li Xie, Huimin Yu, Baocang Ding
2014 Mathematical Problems in Engineering  
The proposed method has provided a solution for 3D polygonal watermarking which is potential to withstand a variety of attacks.  ...  In this paper, a blind watermarking algorithm is proposed to protect the transmission security of 3D polygonal meshes through sensor networks.  ...  For the spatial domain methods, the vertices, the normals, and the geometrical invariants are modified for embedding, while for the transformed domain methods, 3D watermarking is treated as a common signal  ... 
doi:10.1155/2014/305960 fatcat:2wmzs4xcynhfhdkb5hbotgr7ai

Blind Robust Watermarking Schemes for Copyright Protection of 3D Mesh Objects

S. Zafeiriou, A. Tefas, I. Pitas
2005 IEEE Transactions on Visualization and Computer Graphics  
In this paper, two novel methods suitable for blind 3D mesh object watermarking applications are proposed. The first method is robust against 3D rotation, translation and uniform scaling.  ...  In the first method, a set of vertices that correspond to specific angles θ are used for watermark embedding.  ...  The interested reader can refer to [1] - [3] for 3D NURBS graphic data watermarking and to [4] for texture based watermarking of 3D objects.  ... 
doi:10.1109/tvcg.2005.71 pmid:16144256 fatcat:fmfbvubn7zf2dh3rlimzz6xmry

Fingerprinting Curves [chapter]

Hongmei Gou, Min Wu
2005 Lecture Notes in Computer Science  
This paper presents a new method for robust data hiding in curves and highlights potential applications including digital fingerprinting of map document for trace and track purposes.  ...  We parameterize a curve using the B-spline model and add a spread spectrum sequence to the coordinates of the B-spline control points.  ...  There are several watermarking algorithms for graphic data employing parametric features, such as representing 3D surfaces by the non-uniform rational B-spline (NURBS) model and changing the NURBS knots  ... 
doi:10.1007/978-3-540-31805-7_2 fatcat:dkhv2ecv7fec7hvxzzyld7ll5i

Three-Dimensional Meshes Watermarking: Review and Attack-Centric Investigation [chapter]

Kai Wang, Guillaume Lavoué, Florence Denis, Atilla Baskurt
2007 Lecture Notes in Computer Science  
We begin with a discussion on the particular difficulties encountered while applying watermarking on 3D meshes.  ...  The recent decade has seen the emergence of 3D meshes in industrial, medical and entertainment applications.  ...  a NURBS model).  ... 
doi:10.1007/978-3-540-77370-2_4 fatcat:ntppw24a45hbnguvrbli7b2dfm

Blind Robust 3-D Mesh Watermarking Based on Oblate Spheroidal Harmonics

J.M. Konstantinides, A. Mademlis, P. Daras, P.A. Mitkas, M.G. Strintzis
2009 IEEE transactions on multimedia  
In this paper, a novel transform-based, blind and robust 3D mesh watermarking scheme is presented.  ...  Changes made to the transform domain are then reversed back to the spatial domain, thus forming the watermarked 3D mesh.  ...  Thus, any scheme that does not embed and detect the watermark in an affine-invariant manner, including the one proposed herein, has to be provided with a unique orientation and scaling of the input mesh  ... 
doi:10.1109/tmm.2008.2008913 fatcat:7yp7xk6e6vaadnlas3j7g6ev2i

Texture-based watermarking of 3-D video objects

E. Garcia, J.-L. Dugelay
2003 IEEE transactions on circuits and systems for video technology (Print)  
In this article, we describe a novel framework for watermarking 3D video objects via their texture information.  ...  After developing the theory and practical details of this 3D object watermarking scheme, we present the results of several experiments carried out in various conditions, ranging from ideal conditions (  ...  The main idea is to use some invariance properties of fractal coding, such as invariance by affine (geometric and photometric) transformations, to ensure watermark robustness. A.  ... 
doi:10.1109/tcsvt.2003.815963 fatcat:m5focithizdopjkaa5zu53vrs4

Laplace–Beltrami spectra as 'Shape-DNA' of surfaces and solids

Martin Reuter, Franz-Erich Wolter, Niklas Peinecke
2006 Computer-Aided Design  
In this paper, we describe the computation of the spectra and their comparison for objects represented by NURBS or other parametrized surfaces (possibly glued to each other), polygonal meshes as well as  ...  Since the spectrum is an isometry invariant, it is independent of the object's representation including parametrization and spatial position.  ...  Even though NURBS patches are very popular today, most watermark techniques deal with polygonal meshes only.  ... 
doi:10.1016/j.cad.2005.10.011 fatcat:nwanckvj2fdrfjetdk25yktho4

Shape Interrogation [chapter]

Stefanie Hahmann, Alexander Belyaev, Laurent Busé, Gershon Elber, Bernard Mourrain, Christian Rössl
2008 Mathematics and Visualization  
other types of surface representations such as triangulated or polygonal surfaces, subdivision surface, and algebraic surfaces.  ...  In this paper we present the state-of-the-art of shape interrogation methods including methods for detecting surface imperfections, surface analysis tools and methods for visualizing intrinsic surface  ...  basis for NURBS.  ... 
doi:10.1007/978-3-540-33265-7_1 fatcat:qtkcs5a755difovd5laelhrzcu
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