基于内容扰动的二维电子海图可逆水印技术研究  

Research on a reversible watermarking technique for two dimension electronic charts based on content perturbation

作　　者：赖明珠[1,2] 孙建国[1] 张国印[1] 

机构地区：[1]哈尔滨工程大学计算机科学与技术学院,哈尔滨150001 [2]哈尔滨理工大学软件学院,哈尔滨150080

出　　处：《高技术通讯》2014年第12期1238-1244,共7页Chinese High Technology Letters

基　　金：国家自然科学基金(61202455);教育部博士点基金(20112304120025);黑龙江省自然科学基金(F201212);教育部中央高校基础研究基金(HEUCF100612)资助项目

摘　　要：针对二维电子海图对精确度和内容完整性要求高,常规的水印嵌入策略经常会引起电子海图内容的扰动,较难实现实用目标的问题,研究了一种二维电子海图可逆水印技术。一方面通过对海图内容特征的研究,获得了一个内容扰动控制模型;另一方面为了进一步提高海图水印的实用性,提出了基于海图数据组织结构和空间特征的可逆水印方案。实验和研究表明,与同类方法相比,该技术能够适应海图常规操作所带来的数据扰动,在应对图元删除、曲线拟合等方面具有较好的鲁棒性。A technique for reversible watermarking two-dimensional electronic charts was studied to solve the problem that conventional watermark embedding strategies can not achieve the practical watermarking for two-dimensional electronic charts because they often brings chart content disturbances, so it is difficult to meet the charts＇ requirements of high fidelity and high content integrity. On the one hand, a model for content perturbation control was obtained based on the research on the chart content features. On the other hand, a reversible watermarking scheme based on chart data＇ s organizational structure and spatial characteristics was proposed to improve the practicality of electronic charts. The experiment and study show that this method is very robust. Compared with the similar methods, this method can adapt to the data perturbation brought by conventional chart operation, and has the better robustness.

关 键 词：电子海图 信息隐藏 内容扰动 数字水印 可逆 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]