Block-based Reversible Fragile Watermarking for 2D Vector Map Authentication

作     者：Wang, Nana Zhao, Xiangjun Zhang, Han 

作者机构：Jiangsu Normal Univ Sch Comp Sci & Technol Xuzhou Peoples R China Heze Univ Comp Informat Engn Dept Heze Peoples R China 

出 版 物：《INTERNATIONAL JOURNAL OF DIGITAL CRIME AND FORENSICS》 (国际数字犯罪与数字取证杂志)

年 卷 期：2015年第7卷第3期

页      面：60-80页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：2D Vector Map Authentication Concentric Circles Reversible Watermarking Tamper Localization 

摘      要：In this paper, the authors propose a block-based reversible watermarking method for 2D vector map authentication. In the scheme, they divide the features of a vector map into different categories of blocks, calculate an authentication watermark for each block, and embed the watermarks of different blocks using a reversible watermarking method based on virtual coordinates and a fragile watermarking algorithm based on concentric circles. While the block division ensures superior accuracy of tamper localization, the two watermarking methods provide recovery of the original content. Experimental results show that the proposed scheme has good invisibility, reversibility and computational complexity, and can accurately locate malicious attacks such as vertex modification/addition/deletion and feature modification/addition/deletion.