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Research Report CS-RR-331

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James Beacom and Roland Wilson, Model Based Multiresolution Motion Analysis (July 1, 1997).

Abstract

A model based multiresolution motion analysis technique is presented. The projection onto the image plane of the motion of a point in three space is used in a derivative based optical flow formulation. This can then be solved using the method of least squares to compute the six parameters describing the motion of the body (three rotational and three translational components) initially at a high scale and then refined with increasing resolution. These may be calculated due to prior knowledge of the depth of points in the scene from an explicit volumetric model of the object being viewed. This is specified at a single resolution and then extrapolated through scale. This enables the creation of a texture mapped approximation of the input frames at each scale to be used in the coarse-to-fine estimation of the motion parameters. The object is assumed not to deform through time.

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J. Beacom and R.G. Wilson, "Multiresolution Model-Based Motion Analysis", Proceedings of the IEEE TFTS-97, IEEE (1997)

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