Three-dimensional (3-D) meshes are already profusely used in lot of domains. In this paper, we propose a new high capacity data hiding scheme for vertex cloud. Our approach is based on very small displacements of vert...
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ISBN:
(纸本)9781628414837
Three-dimensional (3-D) meshes are already profusely used in lot of domains. In this paper, we propose a new high capacity data hiding scheme for vertex cloud. Our approach is based on very small displacements of vertices, that produce very low distortion of the mesh. Moreover this method can embed three bits per vertex relying only on the geometry of the mesh. As an application, we show how we embed a large binary logo for copyright purpose.
3D meshes are widely used today in very different domains for example;game, medical diagnostic, CAD (computed aided design) or more recently 3-D printing. In this paper, we provide a new data hiding method that has a ...
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ISBN:
(纸本)9781479983391
3D meshes are widely used today in very different domains for example;game, medical diagnostic, CAD (computed aided design) or more recently 3-D printing. In this paper, we provide a new data hiding method that has a huge capacity, cp = 3c(n - 1), where n is the vertex number of the mesh and c is an integer. The proposed method consists to compute a Hamiltonian path along the mesh as synchronization. At each step of path building, 3 c bits are embedded. The embedding is designed to be a distance relation between a vertex and its father in the path. Moreover, the method uses static arithmetic coding to embed message information. We analyzed the proposed method by inserting RGB images in 3D meshes.
Modern image processing tools can easily crop local objects from images and paste them elsewhere. The challenge posed by this crop-paste attack is that it breaks the synchronization of the image watermark by inducing ...
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ISBN:
(纸本)9798350390155;9798350390162
Modern image processing tools can easily crop local objects from images and paste them elsewhere. The challenge posed by this crop-paste attack is that it breaks the synchronization of the image watermark by inducing multiple superimposed desynchronization distortions. Existing image watermarking methods can only resist a single type of desynchronization attack and are inapplicable to this scenario. Finding that the key to resisting the crop-paste attack lies in the geometrically robust features of the object itself, this paper proposes a Self-Synchronizing Object-Aligned watermarking scheme, called SSyncOA. Specifically, we design a self-synchronization process that normalizes the watermark region, the centroid, the principal direction, and the minimum bounding square of the object during encoding and decoding to achieve synchronization of cropping, translation, rotation, and scaling, respectively. In cooperation with SSync, we propose an object-aligned watermarking method that embeds and extracts watermark messages only from the object region. This is achieved by training the watermarking model end-to-end with crop-paste attacks introduced between the encoder and decoder. Extensive experiments illustrate the impact of different desynchronization distortions on the trained watermark model, as well as the superior performance of our method compared to other SOTAs.
3D meshes are widely used today in very different domains for example;game, medical diagnostic, CAD (computed aided design) or more recently 3-D printing. In this paper, we provide a new data hiding method that has a ...
详细信息
ISBN:
(纸本)9781479983407
3D meshes are widely used today in very different domains for example;game, medical diagnostic, CAD (computed aided design) or more recently 3-D printing. In this paper, we provide a new data hiding method that has a huge capacity, cp = 3c(n - 1), where n is the vertex number of the mesh and c is an integer. The proposed method consists to compute a Hamiltonian path along the mesh as synchronization. At each step of path building, 3c bits are embedded. The embedding is designed to be a distance relation between a vertex and its father in the path. Moreover, the method uses static arithmetic coding to embed message information. We analyzed the proposed method by inserting RGB images in 3D meshes.
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