计算机工程 ›› 2008, Vol. 34 ›› Issue (24): 152-154.doi: 10.3969/j.issn.1000-3428.2008.24.052

• 安全技术 • 上一篇    下一篇

基于HVS的抗几何攻击视频水印方案

陈光喜,成 彦   

  1. (桂林电子科技大学数学与计算科学学院,桂林 541004)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

Video Watermark Scheme Resistant to Geometry Transformation Attacks Based on HVS

CHEN Guang-xi, CHENG Yan   

  1. (School of Mathematics and Computing Science, Guilin University of Electronic Technology, Guilin 541004)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

摘要: 提出一种基于人类视觉系统(HVS)的抗几何攻击视频水印方案。对原始视频对象进行规范化处理,记录同步信息。在水印嵌入时,根据人类视觉特性,从视频对象中选取高细节区域嵌入水印。在水印检测和提取前,对受攻击的含水印视频对象进行规范化处理,调整一些抖动点的位置,以进一步提高水印检测的性能。实验结果表明,该方案能较好地抵抗高强度几何攻击,协调不可见性、鲁棒性和安全性。

关键词: 人类视觉系统, 几何攻击, 视频水印

Abstract: This paper proposes a video watermark scheme resistant to geometry transformation attacks. Image normalization is used to achieve synchronization by comparing the normalization information before watermark embedding or detection. Certain numbers of DCT feature blocks are selected based on Human Vision System(HVS) as the embedding points. Before watermark detection and after normalization, the fluctuating points caused by interpolation normalizing are adjusted. Experiments show that the scheme can be resistant to geometry transformation attacks well and satisfy invisibility, robust and security properties.

Key words: Human Vision System(HVS), geometry transformation attacks, video watermark

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