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A novel blind watermarking method on 3D meshes is proposed in this paper. PCA (primary component analysis) is used for 3D meshes 'preprocessing. Octree structure is obtained after octree partition of 3D meshes. Meaningful watermark is then embedded into SC (Single Child) nodes in bottom level of octree. This method is robust against translation, rotation,(More)
Traditional 3D virtual environments give people an isolated feeling in their interactive experience. This paper proposes a simulation instruction mode based on 3D Augmented Reality (AR) environments which can improve interactive experience. The camera detects the presetting markers which will later generate 3D virtual objects and shoots teachers' and(More)
—Three robust blind watermarking methods of 3D models based on Octree are proposed in this paper: OTC-W, OTP-W and Zero-W. Primary Component Analysis and Octree partition are used on 3D meshes. A scrambled binary image for OTC-W and a scrambled RGB image for OTP-W are separately embedded adaptively into the single child nodes at the bottom level of Octree(More)
One of the most serious issues holding back the widespread of 3D web-based animation games over the Internet is the lack of authenticity due to artificial generation. In this paper, a lightweight interactive game based on motion capture is presented, which can produce realistic animation. A virtual human model is built on the skeleton-skin structure. Driven(More)
A robust blind watermarking algorithm of 3D models based on Octree partition is proposed: OTP-W. Primary Component Analysis and Octree partition are used on 3D meshes. A scrambled RGB image is embedded adaptively into the single child nodes at the bottom level of Octree structure. The watermark can be extracted without the original image and 3D model. This(More)
Digital Museum can provide digital ways to protect culture heritage. In this paper, we propose a method to reconstruct, compress and protect 3D models of real objects. Our method can register all the range images together and reconstruct a complete 3D model of the real object. Vertices of 3D meshes are re-classified according to the octree rule and encoded(More)