一种基于分块DCT的抗几何时间攻击视频水印方案

一种基于分块DCT的抗几何时间攻击视频水印方案

刘颖¹, 胡成全¹, 齐红¹, 牟艳艳¹, 马安娜²

1. 吉林大学计算机科学与技术学院, 长春 130012; 2. 吉林省电力有限公司电力科学研究院, 长春 130021

收稿日期:2006-06-10 修回日期:1900-01-01 出版日期:2006-08-26 发布日期:2006-08-26
通讯作者: 胡成全

A Block\|DCT Based Video Watermarking Scheme Resistant to Geometric and Temporal Attacks

LIU Ying¹, HU Cheng quan¹, QI Hong¹, MU Yan yan¹, MA An na²

1. College of Computer Science and Technology, Jilin University, Changchun 130012, China; 2. Institute of Electric Power Science, Jilin Electric Power Co. Ltd., Changchun 130021, China

Received:2006-06-10 Revised:1900-01-01 Online:2006-08-26 Published:2006-08-26
Contact: HU Cheng quan

摘要/Abstract

摘要： 提出利用分块DCT域进行视频水印嵌入算法, 将水印信息嵌入到分块DCT域的直流分量系数中. 由于几何变化和帧攻击是实际应用中较为常见的水印攻击手段, 因此算法采用变换域中具有几何不变特性的DC系数累加和作为水印嵌入特征量, 并采用同步码进行帧同步. 实验表明, 本算法能够有效抵抗几何攻击, 并对帧攻击具有一定的鲁棒性.

关键词: DCT变换, 视频数字水印, 几何攻击, 帧攻击

Abstract: A video watermarking scheme based on block-DCT is presented. The watermark is embedded in the current coefficient of block-DCT. For the geometric and frame attacks are commonly ones in the practical environment, we use the sum of the current coefficients as the embedded feature which will not change with the distortions, and a synchronization code is used to complete the synchronization. The simulation results show that the method can efficiently resist geometric attacks, and is robust to the frame attacks.

Key words: DCT, data watermarking, geometric attack, frame attack

中图分类号:

TP309.2

刘颖, 胡成全, 齐红, 牟艳艳, 马安娜. 一种基于分块DCT的抗几何时间攻击视频水印方案[J]. J4, 2006, 44(06): 139-142.

LIU Ying, HU Cheng quan, QI Hong, MU Yan yan, MA An na. A Block\|DCT Based Video Watermarking Scheme Resistant to Geometric and Temporal Attacks[J]. J4, 2006, 44(06): 139-142.

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