Video Authentication- An Overview

Abstract

With the innovations and development in sophisticated video editing technology and a wide spread of\rvideo information and services in our society, it is becoming increasingly significant to assure the\rtrustworthiness of video information. Therefore in surveillance, medical and various other fields, video\rcontents must be protected against attempt to manipulate them. Such malicious alterations could affect the\rdecisions based on these videos. A lot of techniques are proposed by various researchers in the literature\rthat assure the authenticity of video information in their own way. In this paper we present a brief survey\ron video authentication techniques with their classification. These authentication techniques are broadly\rclassified into four categories: digital signature based techniques, watermark based techniques, intelligent\rtechniques and other techniques. Furthermore we give the shortcomings of different categories of video\rauthentication techniques in brief