Abstract: For the problem of video content protection and tamper detection in frame or between frames,by extracting the video content features as watermarking based on compressive sensing(CS) theory,we proposed a video protection and tamper detection algorithm based on double watermarking.Firstly,the content features of the macro blocks of I frame are extracted by CS procedure,and the semi-fragile authentic watermark is generated.Then,by performing binary arithmetic to the frame sequences,the integrity watermark is generated.Finally,the double watermarking is embedded into the CS measurements of high-frequency DCT coefficients in macro blocks of I frame and P frame by the OMP procedure of CS reconstruction.This algorithm can improve the anti-attack capability of video watermarking,and detect the tamper to video.Simulation results show that the proposed algorithm has accurate detecting capability for tamper in frame,which can detect the sub-blocks of video frame.Also,it has precise detecting capability for tamper between frames such as frame insertion,frame deletion and frame switch,which can detect any tampered frame.

Key words: Compressive sensing,Authentic watermarking,Integrity watermarking,Tamper detect in frame,Tamper detect between frames