Artificial Objects Trajectory Modifications For 2d Object-Based Video Compositing

With the emergence of MPEG-4, the new standard for multimedia applications, the mix of natural and synthetic material is made possible and will lead to fast developments of applications in virtual and augmented realities fields such as video special effects or post-processing. Nevertheless, with existing techniques, object-based editing and compositing of real video sequences require important manual processing. The proposed interactive and semi-automatic object-based video editing approach has been designed an order to reduce as much as possible this human work. It is based on key-framing and permits to add new moving objects, and to remove or to modify the trajectories of existing ones. This method has been validated on real test sequences.