| 一种面向地图对象的矢量地图数字水印方法 |
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| 引用本文： | 吴柏燕,李朝奎,王伟,张金平,王超.一种面向地图对象的矢量地图数字水印方法[J].地理信息世界,2011,9(2):45-52. |
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| 作者姓名： | 吴柏燕 李朝奎 王伟 张金平 王超 |
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| 作者单位： | 湖南科技大学建筑与城乡规划学院;武汉大学测绘遥感信息工程国家重点实验室; |
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| 摘 要： | 针对线状图层数据,面向地图对象,描述了一种能对2D矢量地图数据进行版权保护的水印算法.该算法把水印信息隐藏在地图对象的形状特征中,通过HASH排序和分组,把水印信息广泛地散布到图层中,并且实现了水印信息的盲检.实验表明,该算法具有很强的鲁棒性和实用性.
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| 关 键 词： | 数字水印 矢量地图数据 地图对象 数据版权保护 |
An Object-oriented Watermarking Algorithm for Vector Map Data |
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| WU Bai-yan,LI Chao-kui,WANG Wei,ZHANG Jin-ping,WANG Chao.An Object-oriented Watermarking Algorithm for Vector Map Data[J].Geomatics World,2011,9(2):45-52. |
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| Authors: | WU Bai-yan LI Chao-kui WANG Wei ZHANG Jin-ping WANG Chao |
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| Institution: | WU Bai-yan1,LI Chao-kui1,WANG Wei2,ZHANG Jin-ping1,WANG Chao2(1.School of Architecture and Urban Planning,Hunan University of Science and Technology,Xiangtan 411201,China,2.State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China) |
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| Abstract: | This paper describes an object-oriented watermarking algorithm for protecting the copyright of a linear vector map data.The algorithm hides the watermark message into map objects' shape features and scatters the watermark broadly in the map data by sorting and grouping the objects according to the keyed hash of objects' label ID.The algorithm realizes the blind watermark detection and is very robust and practical as the experiment proves. |
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| Keywords: | digital watermark vector map data map object copyright protection |
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