Digital Video Forensics: A Comprehensive Survey

The wide spread of digital devices and tools causes the simplification of the manipulation of any digital multimedia content. As a result, digital videos and photos are not trusted to be used as evidence in courts. This fact raises the need for finding techniques to ensure the authenticity of digital multimedia contents. Experts in digital-signal processing conducted a huge number of researches to find new strategies, using digital forensics, to verify digital evidences and trace its origins. The aim of this paper is to collect and provide the definitions of the main concepts related to media forensics. Also, this paper gives an overview of the different techniques used in media forensics concentrating on video forensics. Furthermore, it classifies the work done in the field according to the main technique used in the proposed solution approach.