Research On Video Information Hiding Techniques

With the rapid and extensive development of computer network technique and the gradual improvement of storage, search and communication technique of multimedia information, digital products have become common in our life. We pay more and more attention to the problem of copyright protection of digital products while we enjoy the convenience of digital products. Information hiding as a new technique in information security offers a new way to solve the problem of copyright protection. The appearing of plenty of consuming digital audio and video product, such as VCD, DVD, makes the video information hiding technique a hotspot.In this paper, firstly we introduce the conception, characteristics and category of information hiding and its application. Afterward, according to the characteristics of video information hiding system some typical algorithms are discussed. Analyze the security problem of information hiding taking the LSB algorithm as an example. Finally, on the basis of the anatomy of the ability of a typical algorithm in bit stream resisting statistical attack put forward a new algorithm to improve the security of information hiding algorithm. Experiments show that the new algorithm can succeed in resisting related statistical attack and make up the limitation of the original algorithm.