A Scheme of Video Compression and Encryption Using Matching Pursuit
基于匹配追逐的视频压缩加密方案

Encryption is one of the key techniques of video security.Usually video encryption is based on a given compression scheme.Scrambling the transform coefficients will change the statistical characteristics and result in the increase of the bit rate of the compressed video.In the view of encryption,this paper proposes a union coding scheme for compression and encryption based on the matching pursuit(MP).On the compression platform based on this method,the decomposed coefficients are of random distribution.The complete scrambling will not increase the bit rate,but with higher security.Experimental results are given to demonstrate the efficiency of this method.