Chaos based authentication watermarking scheme for combined video and audio data
Yueyun Shang · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2007
Multimedia authentication techniques are used to prove the originality of received multimedia content and to detect malicious tampering. In this paper, we extend the Lin's theorem and utilize Fridrich's Two-Dimensional Chaotic Maps to propose a new video/audio verify scheme. Different from most previous works, the single watermarking is used for authenticating two kinds combined multimedia in the new scheme. This method accepts appropriate MPEG compression while detecting malicious content tampering. Because the watermark has just only been added into video or audio signal, there is no distortion in audio block or video frame. So this method can be also used for some special purpose, such as military or medical.