Dragan Dukić

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In this paper we show that a 3D analogue for the first Hu moment invariant, originally introduced for planar shapes, is minimized by a sphere. By exploiting this fact we define a new compactness measure for 3D shapes. The new compactness measure indicates how much a given shape differs from a sphere, which is assumed to be the most compact 3D shape. The new(More)
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