This paper presents the constraints involved by MPEG-4 to copyright protection systems based upon watermarking technology. It proposes also an assessment methodology in order to ev...
A MPEG-4 compressed domain video watermarking method is proposed and its performance is studied at video bit rates ranging from 64 Kb/s to 900 Kb/s. The watermark is inserted by mo...
In the context of distributed multimedia applications involving multicast to a large number of users, a single quality of service level may not be appropriate for all participants....
This paper proposes a deformation technique called Planar Bones, derived from Surface-oriented Free Form Deformations, and explores its application to the context of Facial Animat...