Viewpoint Selection for Human Actions

In many scenarios a scene is filmed by multiple video cameras located at different viewing positions. The difficulty in watching multiple views simultaneously raises an immediate question - which cameras capture better views of the dynamic scene? When one can only display a single view (e.g. in TV broadcasts) a human producer manually selects the best view. In this paper we propose a method for evaluating the quality of a view, captured by a single camera. This can be used to automate viewpoint selection. We regard human actions as three-dimensional shapes induced by their silhouettes in the space-time volume. The quality of a view is evaluated by incorporating three measures that capture the visibility of the action provided by these space-time shapes. We evaluate the proposed approach both qualitatively and quantitatively.

• Type: Journal
• Year: 2012
• Where: IJCV
• Authors: Dmitry Rudoy, Lihi Zelnik-Manor
• Keywords: Computer Networks, Dynamic Scene, IJCV 2012, Three Dimensional Shapes, TV Broadcasts