Anti-Forensics of Video Frame Deletion
首发时间:2014-07-29
Abstract: Due to the case that digtial videos can be easily altered, many video forensic techinques have been recently proposed to verify the authenticity of digital videos. Meanwhile, several anti-forensic techniques are develpoed to make the manipulations undetectable. In this paper, we analyze a typical anti-forensic technique of video frame deletion and then propose a countering anti-forensic method to detect it. Furthermore, we design an improved anti-forensic technique against the forensic investigator. The experimental results demonstrate that we can effectively detect the use of the existing anti-forensic technique, and the improved anti-forensic technique is proven to make the frame deletion undetectable.
keywords: Video Forensics Anti-Forensics Frame Deletion
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一种视频删帧反取证技术
摘要:由于数字编辑软件技术的发展,数字视频的篡改变得越来越简单。近年来,为了确认视频的可靠性与完整性,许多数字取证技术被提出。与此同时,数字反取证技术也发展起来,一些取证技术会因为反取证技术的应用而失效。本文分析了一种典型的视频删帧反取证技术,提出了一种可以检测该反取证技术的方法。鉴于典型反取证技术的弱点,本文提出了一种新的视频删帧反取证技术。实验结果表明,本文提出的方法能有效的检测出文中分析的视频分析反取证技术,而本文设计的新的视频删帧反取证技术可以消除视频删帧留下的指纹,使得视频删帧检测算法失效。
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