收稿日期: 2016-08-05
修回日期: 2016-08-18
网络出版日期: 2016-09-30
基金资助
国家自然科学基金（No.61332012，No.61672090）；北京市科技新星交叉课题（No.Z1511000003150146）；中央高校基本科研业务费专项资金（No.2015JBZ002）资助
Visible Watermarking for 3D Models Based on Boundary Adaptation and Mesh Subdivision
Received date: 2016-08-05
Revised date: 2016-08-18
Online published: 2016-09-30
安新辰, 倪蓉蓉, 赵耀 . 基于网格细分和边界自适应的三维模型可见水印[J]. 应用科学学报, 2016 , 34(5) : 503 -514 . DOI: 10.3969/j.issn.0255-8297.2016.05.003
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.
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