一种矢量海图双重水印技术研究  

Research on Double Watermarking for Vector Chart

作　　者：彭认灿[1] 蒋瑞清 董箭[1] 李明辉 陈阳 PENG Rencan;JIANG Ruiqing;DONG Jian;LI Minghui;CHEN Yang(Department of Military Oceanography and Hydrography,Dalian Naval Academy,Dalian 116018,China;China Navigation Publication Press,Tianjin 300450,China)

机构地区：[1]海军大连舰艇学院军事海洋与测绘系,辽宁大连116018 [2]中国航海图书出版社,天津300450

出　　处：《海洋测绘》2019年第6期38-42,共5页Hydrographic Surveying and Charting

基　　金：国家重点研发计划(2017YFC1405505);国家自然科学基金(41601498;41471380)

摘　　要：针对矢量海图水印版权保护的研究特点,在分析论证MVCF格式矢量海图数据精度及分布特征的基础上,提出了一种双重数字水印技术。通过将面向线要素特征点的空域法水印技术与面向点要素水深值的零水印技术进行算法融合,构建了具有技术优势互补的新型水印算法模型。实验分析表明该类算法可在保证矢量海图精度的条件下,对抗各类水印攻击,且具有较强的鲁棒性。In view of the research characteristics of the copyright protection of vector chart watermarking,a double digital watermarking technique is proposed based on the analysis and demonstration of the accuracy and data distribution characteristics of vector chart in MVCF format.A novel watermarking algorithm model with complementary technical advantages is constructed by combining the spatial watermarking technology based on feature points of line elements and zero watennarking technology based on water depth value of point elements.The experimental results show that this algorithm can resist various watermarking attacks under the condition of ensuring the accuracy of vector chart,and this algorithm has strong robustness.

关 键 词：矢量海图 双重水印 空域法水印 零水印 版权保护 

分 类 号：P28[天文地球—地图制图学与地理信息工程]