3SCHYNDEL R G V. A Digital Watermark [ C]. Proc IEEE Intl Conf on Image Processing. ICIP, 1994:286-90.
4PETITCOLAS F A P. Information Hiding-A Survey[ J]. Proceedings of the IEEE, 1999,87 (7) :1062-1078.
5CACHIN C. An Information-Theoretic Model for Steganography[ C]. Proc of the 2^nd International Workshop on Information Hiding. Portland, Oregon, USA, Lecture notes in CS, Springer-Verlag, 1998.
6SCOTF C, NASIR M, BOON - LOCK Y. Resolving rightful ownerships with invisible watermarking techniques : limitations, attack, and implications [ J ]. IEEE Journal on selected areas in communication, 1998,16(4) :573-586.
7CRAVE R. Technical Trials and Legal Tribulations [ J]. Communications of the ACM, 1998,41 (7) :45-54.
