Chaos Based Video Compression and Encryption Algorithms

The problems on compression and encryption algorithms of compressed video based on internet explosive multimedia applications are dealt with. Comparing with various encryption algorithms, a method is proposed that adopts the chaos method as pseudorandom sequence generator and combines it with some other algorithms merits. This method is secure and fast for software. It is applied to MPEG2 algorithm and wavelet based video compression algorithm (WQA) respectively. The former could be done in real time, while the latter reached high compression ratio.