基于区域时偏特性的视频复制-粘贴检测  

Video Copy-Move detection based on region temporal shift character

作　　者：王康[1] 蒋兴浩[1] 郭捷[1] 孙锬锋[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《信息技术》2016年第10期117-120,共4页Information Technology

摘　　要：Copy-Move作为一种较为普遍的视频篡改行为引起了国内外很多学者的关注,作为一种帧内篡改,篡改者通过改变视频帧内的像素值来达到篡改目的。为了检测此篡改,文中提出了基于区域光流偏移特性的检测算法,利用此偏移特性来搜寻其在视频中被拷贝的位置来达到检测目的。实验证明,提出的方法创新性的利用了时域信息进行检测,同时在未增加算法复杂度的情况下,提高了检测准确率,是一种有效的检测方法。As a very common video forgery method,Copy-Move has recently become more attractive for the researchers all over the world. It 's an intra-frame forgery,which attackers try to change the information of this video by transforming pixels ' value of intra-frame. In order to detect this manipulation,this paper proposed a detection algorithm based on region optical flow correlation analysis.The forged regions would have much high correlation especially in temporal domain,which could exactly be utilized to locate the coordinate in frequency domain. With respect to the state of the art,the proposed method creatively makes use of information hidden in the temporal domain and improved the performance without increasing complexity.

关 键 词：Copy-Move 帧内篡改 光流 

分 类 号：TN919.81[电子电信—通信与信息系统]