一种抗压缩的矢量地图水印算法  

Anti-compression Watermark Algorithm for Vector Map

作　　者：张佐理[1] 

机构地区：[1]浙江工贸职业技术学院电子工程系,浙江温州325003

出　　处：《计算机工程》2010年第20期137-139,共3页Computer Engineering

摘　　要：对Douglas-Peucker矢量图压缩算法存在的不足进行改进,在此基础上提出一种抗压缩的矢量地图水印算法。该算法选择矢量地图的顶点坐标作为水印载体,采用改进的Douglas-Peucker算法对冗余顶点进行压缩,利用压缩后的顶点数据嵌入水印。实验结果表明,该水印算法具有较好的抗压缩效果。Aiming at the shortages of Douglas-Peucker compression algorithm for vector map,this paper proposes an anti-compression watermark algorithm by improving Dougleas-Peucker algorithm.The improved algorithm is adopted to compress vertex data which is important characteristic of vector map.The compressed vertex data are used as host data to embed watermark.Experimental results indicate that a desired progress is achieved by applying proposed algorithm in aspect of anti-compression.

关 键 词：矢量地图 抗压缩 水印 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]