Crypto‐Compression of Videos
Cyril Bergeron, Wassim Hamidouche, Olivier Déforges · 2022
This chapter addresses the emerging security issues by providing a state of the art of partial, perceptual and selective encryption approaches. It presents recent work in the field of video crypto-compression, with a particular focus on selective encryption adapted to video compression standards. The chapter focuses on the selective encryption scheme used in video compression standards: Advanced Video Coding, High Efficiency Video Coding (HEVC) and its scalable extension of HEVC. Video encryption methods can be grouped into three broad categories, operating at different stages in the transmission process: visual encryption methods, crypto-compression methods, and naive encryption methods. The chapter focuses on format-compliant selective encryption methods, which combine the advantages of the partial encryption and perceptual encryption. Metrics of the video quality assessment type have been widely used to assess the security of visual encryption.