The  Weizmann  Institute  of  Science
Faculty of Mathematics and Computer Science

Vision and Robotics Seminar

Tal Hassner

will speak on

What Does the Scene Look Like from a Scene Point?

Consider a sporting event with several cameras taking pictures of the game.
What does the scene look like from the point of view of one of the players in the field?  What does the ball ``see"?  In this talk we will show how we can synthesize virtual views from scene points located {\it inside} the imaged scene. On one hand this provides a simple way of defining the position of the virtual camera in an uncalibrated setting. On the other hand, it implies {\it extreme} changes in viewpoint between the virtual camera and the real cameras.
Such extreme changes in viewpoint are not typical of most New-View-Synthesis (NVS) problems. Our approach does not require prior correspondence estimation nor any explicit 3D reconstruction. It can handle any number of input images while simultaneously using the information from all of them. However, very few images are usually enough to provide reasonable synthesis quality.

* This is joint work with Michal Irani and P. Anandan.

The lecture will take place in the
Lecture Hall, Room 1, Ziskind Building
on Thursday, January 31, 2002
at noon