Interesting comment about the size of the ball. I wondered this myself...here's what I came up with:
Due to the nature of circles I doubt a large ping pong is completely necessary. It is probably more of an issue of optimal luminosity (lumens, factoring in diffuseness of VGA input) being used to determine the size/shape of the sphere. Once you can model the sphere accurately you can know the center position, pitch and yaw of the sphere in 3d space.
It could probably be done with a smaller ball but would not work as well in low-light.
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Interesting comment about the size of the ball. I wondered this myself...here's what I came up with:
Due to the nature of circles I doubt a large ping pong is completely necessary. It is probably more of an issue of optimal luminosity (lumens, factoring in diffuseness of VGA input) being used to determine the size/shape of the sphere. Once you can model the sphere accurately you can know the center position, pitch and yaw of the sphere in 3d space.
It could probably be done with a smaller ball but would not work as well in low-light.