The Problem

Consider multiple views of a scene, for example, in a video. These amount to central projections onto the retina of an eye or the film of a camera. The problem is, given this information, to derive models of the scene in view (which could, in general, be changing). Models can be a wide variety of things and they are generally purposive or teleological. However, for the purpose of explaining this work, consider a model as consisting of the three-dimensional locations of each scene feature or point, in some coordinate system. In the case of a changing scene, add to this model the three-dimensional velocity of moving scene points.

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Revised 1999/04/15
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