吴柏燕;王艳军;王超;

• 1:湖南科技大学地理空间信息技术国家地方联合工程实验室
• 2:武汉大学测绘遥感信息工程国家重点实验室

摘要(Abstract)：

针对居民地数据对形状变形比较敏感,从而导致水印不可见的问题,该文提出了一种保持形状的居民地数据高保真水印模型。利用几何图形相似变换,基于量化索引调制(QIM)思想,将水印信息调制于多边形对象的空间关系中。同时,通过数据哈希分组及水印位重复嵌入的方式,将水印信息散布到整个数据集中。水印检测时,基于QIM思想及投票机制提取水印位。实验结果表明,提出的水印模型在对居民地数据添加水印时,很好地保持了水印的不可见性。同时,在抵抗各种常见矢量数据水印攻击方面也具有较好的鲁棒性。利用多边形相似变换对居民地数据添加水印,对矢量地图数据鲁棒水印算法的设计,具有参考意义。

关键词(KeyWords)： 数字水印;居民地数据;相似变换;保真度;鲁棒性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41201389);; 测绘遥感信息工程国家重点实验室基金项目(11I04);; 地理空间信息工程国家测绘地理信息局重点实验室基金项目(201121)

作者(Authors): 吴柏燕;王艳军;王超;

DOI: 10.16251/j.cnki.1009-2307.2019.09.027

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