一种基于数字水印的可信视频

A Reliable Video Based on Digital Watermarking

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 position according to the watermark information.