基于网格细分和边界自适应的三维模型可见水印

doi:10.3969/j.issn.0255-8297.2016.05.003

Abstract

Abstract:

Digital watermarking can protect copyrights of digital products, while visible watermarking allows immediate perception so that copyright is openly declared. For threedimensional mesh models, extensive studies on invisible watermarking have been done, but few consider using visible watermarking to achieve direct identification of copyright. This paper proposes a visible watermarking algorithm using a 3D mesh model, which is based on boundary adaptation and grid refining of the 3D mesh model. The algorithm uses a TTF character library in the Windows operating system. It can directly input watermarking information including Chinese characters, English letters, and numbers for embedding. A smooth 3D mesh model is projected to a 2D plane, and then the mesh is broken down to embed the visible watermark. Experiments verify that Chinese characters, English letters and numbers can be shown with smooth edges, and they are robust. Thus copyright of the 3D model is protected.

Key words: mesh subdivision, visible watermark, three-dimensional mesh model, TrueType font

CLC Number:

TP309.7

AN Xin-chen, NI Rong-rong, ZHAO Yao. Visible Watermarking for 3D Models Based on Boundary Adaptation and Mesh Subdivision[J]. Journal of Applied Sciences, 2016, 34(5): 503-514.

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Visible Watermarking for 3D Models Based on Boundary Adaptation and Mesh Subdivision

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