A Neural Paradigm for Motion Understanding |
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Authors: | A Branca G Convertino F Stella A Distante |
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Affiliation: | (1) Istituto Elaborazione Segnali ed Immagini – CNR, Bari, Italy, IT |
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Abstract: | The main aim of this paper is to propose a new neural algorithm to perform a segmentation of an observed scene in regions
corresponding to different moving objects, by analysing a time-varying image sequence. The method consists of a classification
step, where the motion of small patches is recovered through an optimisation approach, and a segmen-tation step merging neighbouring
patches characterised by the same motion. Classification of motion is performed without optical flow computation. Three-dimensional
motion parameter estimates are obtained directly from the spatial and temporal image gradients by minimising an appropriate
energy function with a Hopfield-like neural network. Network convergence is accelerated by integrating the quantitative estimation
of the motion parameters with a qualitative estimate of dominant motion using the geometric theory of differential equations. |
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Keywords: | |
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