Detection of video double encoding with GOP size estimation

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI:10.1109/WIFS.2012.6412641

David Vázquez-Padín, M. Fontani, T. Bianchi, Pedro Comesaña Alfaro, A. Piva, M. Barni

引用次数: 86

Abstract

Video forensics is an emerging discipline, that aims at inferring information about the processing history undergone by a digital video in a blind fashion. In this work we introduce a new forensic footprint and, based on it, propose a method for detecting whether a video has been encoded twice; if this is the case, we also estimate the size of the Group Of Pictures (GOP) employed during the first encoding. As shown in the experiments, the footprint proves to be very robust even in realistic settings (i.e., when encoding is carried out using typical compression rates), that are rarely addressed by existing techniques.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于GOP大小估计的视频双编码检测

视频取证是一门新兴学科，旨在以盲法推断数字视频所经历的处理历史信息。在这项工作中，我们引入了一种新的取证足迹，并在此基础上提出了一种检测视频是否被编码两次的方法;如果是这种情况，我们还估计在第一次编码期间使用的图像组(GOP)的大小。正如实验中所示，即使在现实环境中(即，当使用典型压缩率进行编码时)，内存占用也被证明是非常健壮的，而现有技术很少解决这些问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

2012 IEEE International Workshop on Information Forensics and Security (WIFS)

自引率

0.00%

发文量

期刊最新文献

Designing steganographic distortion using directional filters AC-3 bit stream watermarking Privacy-preserving architecture for forensic image recognition Active content fingerprinting: A marriage of digital watermarking and content fingerprinting Optimum forensic and counter-forensic strategies for source identification with training data