A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Digital image watermarking for joint ownership
Proceedings of the tenth ACM international conference on Multimedia
Spread spectrum signaling for speech watermarking
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
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A digital movie can be created jointly under the cooperation of many creators. It is then necessary to provide protection to the creatorship of each participating creator. In this paper, we propose a framework for providing the creatorship protection of multiple creators involved in creating the object-based digital movie. The proposed framework makes use of digital watermarking techniques and cryptographic protocols to achieve the creatorship protection purpose. Object-based movie may consist of several audio and video objects, which may be created by different creators. The proposed framework embeds different watermarks in different video/audio objects in such a way that each creator can show the joint-creatorship of the movie; as well as each creator can prove his/her creatorship of video/audio object he/she created.