ball

So... what exactly is this ball?

Also, are these stills taken from a video or a still camera?

Just a note... Photosynth works best with stationary objects. In this scene, although you have two solid objects (the background and the ball), they are moving independent of each other. One of Photosynth's main assumptions is that everything remains stationary, so it might work better for you if the ball stayed still and you moved around it.

As things stand now, Photosynth tries to track both the background and the ball and ends up a little confused.