Current online lectures are predefined in their viewing experience. Allow a viewer to concentrate on what is most important for him at the moment. Overview Geometric model of these the room is built. Video input is roughly segmented into speaker, background, and blackboard.
Textured background is used to more accurately segment speaker.
Speaker is transmitted as 2D sprite and positioned as billboard in front of blackboard. Low-res camera watches for updates on blackboard. Client side viewer allows customization and interaction in order to present the most important information to the viewer Description Stanford University has a long tradition of transmitting many of its lectures on a specialized network known as the Stanford Instructional Television Network to which many of the nearby Silicon Valley companies subscribe. Most transmitted lectures consist of videos that are switched between showing the lecturer, the blackboard, and slides or other material along with audio. It is impossible to look at some material in more detail.