基于直方图修正的H.264视频加密域可逆信息隐藏  

Reversible Data Hiding for Encrypted H. 264 Video Based on Histogram Modification

作　　者：李栋 马双棚 段妍羽 杨晓元[1] LI Dong;MA Shuang-peng;DUAN Yan-yu;YANG Xiao-yuan(College of Cryptographic Engineering,Engineering University of People's Armed Police,Xi'an 710086,China;College of Information Engineering,Engineering University of People's Armed Police,Xi'an 710086,China)

机构地区：[1]武警工程大学密码工程学院,西安710086 [2]武警工程大学通信工程学院,西安710086

出　　处：《科学技术与工程》2019年第2期126-130,共5页Science Technology and Engineering

基　　金：国家自然科学基金(61379152;61403417)资助

摘　　要：为实现视频加密域的可逆信息隐藏,通过利用运动矢量随机取反和直方图修正的信息嵌入方法研究了视频加密与信息提取可分离的算法。结果表明:设计的高度对称的嵌入算法,实现了信息嵌入与视频加解密的可分离性;信息提取后经过解密,视频恢复率分别达到99. 7%、99. 8%和99. 87%,而未解密的视频恢复比率只有44. 57%、45. 71%和62. 86%;第三方管理者可以在不进行解密的情况下对存储的视频嵌入各种控制信息,而视频的所有者在下载视频后,无论是否进行解密,均可进行信息的提取。可见提出的算法满足信息嵌入、提取与视频加解密可分离的要求,且嵌入过程是完全可逆的。In order to realize reversible data hiding for encrypted video,a method based on motion vector encrypted and histogram modification was used to investigate video encrypted and data embedded.The results show that that the video can be recovered to 99.97%,99.8%and 99.87%,while the video without decoded,can only be recovered to 44.57%,45.71%and 62.86%,the third party can embed some control information into the video without decoding it,the legal owner of the encrypted video downloads the video,the information can be extracted with or without decoding the video.It is concluded that the proposed algorithm satisfied the requirements of separability and reversibility.

关 键 词：视频加密 可逆信息隐藏 运动矢量 直方图修正 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]