Video Authentication- An Overview

Abstract

ABSTRACT

A Review on Video/Image Authentication and Temper Detection Techniques

“…It can be done for several purposes, for instance, to manipulate the integrity of an individual, to offend an individual, or to hide the content of information provided in the video [2].In short, it is easy to alter the content of information maliciously, that leads to serious issues for the researchers to be solved.…”

“…When a malicious modification is performed on a video, it either attacks on the contents of the video (i.e. visual information presented by the frames of the video), or attacks on the temporal dependency between the frames [2]. The techniques are used to verify that video is either authentic or tampered.…”

“…For affirming the originality of video content, to detect malicious tampering and preventing various types of forgeries performed on video data, video authentication techniques are used [2].…”

“…In [12], Alin C. Popescu and Hany Farid have described a technique is able to automatically detect such correlations in any portion of image. In [2], brief overview of an authentication technique for digital video is described which is based on motion trajectory and cryptographic secret sharing [2]. In the proposed method, the video sequence is firstly segmented into number of subsequences then each frame of the video sequence is mapped to a trajectory in the feature space by which the key frames of the video shot are computed [12].…”

“…It is indispensable to substantiate the truthfulness of video recordings used as evidence in sensible proceedings. Researches in video authentication are in its early stage, therefore much of the research work remains open [2]. It is hard to assert the best video authentication techniques yet.…”