| 基于双重网格的矢量地图数字水印算法 |
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| 引用本文： | 车森,邓术军.基于双重网格的矢量地图数字水印算法[J].海洋测绘,2008,28(1):13-17. |
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| 作者姓名： | 车森 邓术军 |
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| 作者单位： | 解放军信息工程大学,测绘学院,河南,郑州,450052 |
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| 摘 要： | 通过分析数字水印技术和矢量地图的结合方式，提出了一种基于双重网格的数字水印算法，该算法通过双重网格划分，将水印信息分散隐藏到节点坐标的最低有效位上。实验证明，该算法具有良好的隐蔽性、较强的鲁棒性，可以抵抗常规的节点编辑和地图裁切对水印信息的破坏，适合于矢量地图的版权保护。
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| 关 键 词： | 数字水印 矢量地图 最低有效位 鲁棒性 版权保护 |
| 文章编号： | 1671-3044（2008）01-0013-05 |
| 收稿时间： | 2007-07-13 |
| 修稿时间： | 2007-10-27 |
Watermarking Arithmetic of 2D Vector Maps Based on Two-tier Grids |
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| CHE Sen,DENG Shu-jun.Watermarking Arithmetic of 2D Vector Maps Based on Two-tier Grids[J].Hydrographic Surveying and Charting,2008,28(1):13-17. |
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| Authors: | CHE Sen DENG Shu-jun |
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| Institution: | ( Institute of Surveying and Mapping, Information Engineering University, Zhengzhou, Henan ,450052 ) |
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| Abstract: | Through analyzing the combinative between data watermark technology and vector map,the author puts forward a kind of arithmetic of data watermark based on twotier grids.This arithmetic separates vector map by two-tier grids,and then hide the watermark information into lowest effective bit of node coordinate value.By examination,we found this arithmetic has well hiding and strong robust.It can resist destroy of normal node editing and map cutting.So this arithmetic may protect copyright of vector maps well. |
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| Keywords: | digital watermark vector map lowest effective bit robust copyright protecting |
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