In a previous work (1999), we defined a new approach to evaluating directional relations between objects. The approach is based on the computation of a histogram of forces. We show in the present paper that the notion of the histogram of forces can also be useful in pattern recognition. The aim of this this study is to classify orbits and sinuses. Using force histograms instead of geometrical criteria (like compactness or degree of ellipticity) allows more accurate classification to be produced. Moreover, the proposed approach requires low completing time.
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