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

机译:用于2D矢量地图认证的基于块的可逆脆弱水印

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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.
机译:在本文中,作者提出了一种用于2D矢量地图认证的基于块的可逆水印方法。在该方案中,他们将向量图的特征划分为不同的块类别,为每个块计算一个认证水印,并使用基于虚拟坐标的可逆水印方法和基于同心圆的脆弱水印算法来嵌入不同块的水印。界。虽然块划分确保了篡改定位的卓越准确性,但是两种水印方法提供了原始内容的恢复。实验结果表明,该方案具有良好的不可见性,可逆性和计算复杂性,能够准确定位顶点修改/添加/删除和特征修改/添加/删除等恶意攻击。

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