[1]董晓慧,林其伟,许东旭.采用可逆水印的HEVC视频完整性认证方案[J].华侨大学学报(自然科学版),2016,37(2):190-195.[doi:10.11830/ISSN.1000-5013.2016.02.0190]
　DONG Xiaohui,LIN Qiwei,XU Dongxu.Scheme of Video Integrity Authentication Based on Reversible Watermarking for HEVC[J].Journal of Huaqiao University(Natural Science),2016,37(2):190-195.[doi:10.11830/ISSN.1000-5013.2016.02.0190]
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采用可逆水印的HEVC视频完整性认证方案()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第37卷
期数:
2016年第2期
页码:
190-195
栏目:
出版日期:
2016-03-20

文章信息/Info

Title:
Scheme of Video Integrity Authentication Based on Reversible Watermarking for HEVC
文章编号:
1000-5013(2016)02-0190-06
作者:
董晓慧;  林其伟;  许东旭
华侨大学 信息科学与工程学院, 福建 厦门 361021
Author(s):
DONG Xiaohui;  LIN Qiwei;  XU Dongxu
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
运动矢量;  离散余弦转换;  HEVC/H.265;  完整性认证;  可逆水印
Keywords:
motion vector;  discrete cosine transformation;  HEVC/H.265;  integrity authentication;  reversible watermarking
分类号:
TP391
DOI:
10.11830/ISSN.1000-5013.2016.02.0190
文献标志码:
A
摘要:
针对最新的视频编码标准HEVC/H.265,提出一种基于可逆水印的视频完整性认证方案.首先,算法根据第一个I帧中相邻块的直流系数(DC)系数之间的大小关系提取特征码;然后,从第二个图像组(GOP)的P帧开始,通过修改运动矢量某一分量的幅值嵌入水印,并且把修改前幅值的最低有效位信息嵌入到该块最后一个离散余弦转换(DCT)系数上以实现视频还原.实验结果表明:算法简单有效,具有较好的脆弱性,同时能够对视频进行无失真还原.
Abstract:
An algorithm of reversible watermarking based on new video coding standard HEVC/H.265 is proposed in this paper. The proposed algorithm firstly compares the DC coefficients coefficient of contiguous two blocks in the first I frame to create an authentication code. Secondly, embed the code as watermark into P frames from the second group of pictures by modifying one motion vector component amplitude, then embed the least significant bit of the original MV amplitude into the last coefficient of the discrete cosine transformation block to restore original video. Experimental results show that the proposed algorithm has good fragility and is easily to be extracted from the video, what’s more, it can restore the video exactly.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2014-07-31
通信作者: 林其伟(1959-),男,副教授,博士,主要从事视频编码与网络通信方式的研究.E-mail:qwlin@hqu.edu.cn.
基金项目: 福建省自然科学基金资助项目(2012J01275)
更新日期/Last Update: 2016-03-20