| 三维网格模型水印自适应调节算法 |
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| 引用本文： | 徐涛,卢剑伟. 三维网格模型水印自适应调节算法[J]. 计算机工程, 2012, 38(3): 113-115 |
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| 作者姓名： | 徐涛 卢剑伟 |
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| 作者单位： | 1. 惠州学院计算机科学系,广东惠州,516007
2. 合肥工业大学机械与汽车工程学院,合肥,230009 |
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| 基金项目： | 国家“863”计划基金资助项目（200904AA04Z108）; 广东高校优秀青年创新人才培育基金资助项目（LYM09128）; 惠州学院博士科研启动基金资助项目（C509.0207） |
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| 摘 要： | 为提高三维网格模型嵌入水印的透明性，提出一种基于模型局部几何特征的自适应水印强度调节算法。将网格模型分割为若干局部区域，根据各区域内几何数据的波动情况对水印嵌入强度进行调节。几何误差和视觉失真误差评价结果表明，与非自适应嵌入方法相比，该方法嵌入的水印透明性较高。
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| 关 键 词： | 网格模型水印 透明性 水印强度 自适应嵌入 样本方差 局部区域 |
| 收稿时间： | 2011-08-15 |
Adaptive Adjusting Algorithm for 3D Mesh Model Watermark |
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| XU Tao , LU Jian-wei. Adaptive Adjusting Algorithm for 3D Mesh Model Watermark[J]. Computer Engineering, 2012, 38(3): 113-115 |
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| Authors: | XU Tao LU Jian-wei |
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| Affiliation: | 1. Department of Computer Science, Huizhou University, Huizhou 516007, China; 2. School of Machinery and Automobile Engineering, Hefei University of Technology, Hefei 230009, China) |
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| Abstract: | For improving the la＇ansparency of embedding watermark into 3D mesh model, an adaptive watermark intensity adjusting algorithm based on local geometric features of mesh model is proposed. Mesh model is partitioned into some local area first, and embedding intensity is adjusted according to fluctuation of local geometric features. Evaluation of geometric error and evaluation of visual distortion are both adapted to test the performance of the algorithm. Experimental results show that, compared with the non-adaptive technique, the proposed adaptive technique can improve transparency of watermark effectively both in object evaluation and in subject evaluation. |
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| Keywords: | mesh model watermark transparency watermark intensity adaptive embedding sample variance local area |
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