期刊论文

中文

计算机工程与应用

1002-8331

2004

40

21

40-43

10.3321/j.issn:1002-8331.2004.21.012

国家信息化工作领导小组项目(编号:2001-研-041) 湖南省自然科学基金项目(项目号:03JJY3103)资助

本校为其他机构

数字视频信号的非连续性和可编辑性很容易实现人为的对其的修改、剪接、合成、删除、覆盖等操作,不能成为真正的证据.文章论述了在拍摄时加入数字水印来保证数字视频信号的"证据连续性".当可信性受到质疑,根据提取出来的水印信息来判断视频是否被篡改,和确定被篡改的位置.

Digital video signals is easy to be modified,cut ,synthesized,deleted,covered by artificial operation because of its non-continuity and its editing,which can't be regarded as the real evidence.This paper describes a method to put digital watermarks into evidence to guarantee the″evidence continuity″of digital video signals,when its credibility is queried,we can judge both whether video signals are distorted and the distorted ...