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Grasp Exploration for 3D Object Shape Representation Using Probabilistic Map

Abstract : In this work it is shown the representation of 3D object shape acquired from grasp exploration. Electromagnetic motion tracking sensors are used on the fingers for object contour following to acquire the 3D points to represent its shape using a probabilistic volumetric map. It is used the object referential for its representation. For that, it is found the center of mass of the 3D object through the moments to define its referential. The occupancy of each individual voxel in the map is assumed to be independent from the other voxels occupancy. The posteriori achieved from Bayes' rule is the probability distribution on the occupations percentage for each voxel. The probabilistic map in a Cartesian system is converted to the spherical coordinate system for visualization with more details on its surface.
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Diego R. Faria, Ricardo Martins, Jorge Dias. Grasp Exploration for 3D Object Shape Representation Using Probabilistic Map. First IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS), Feb 2010, Costa de Caparica, Portugal. pp.213-220, ⟨10.1007/978-3-642-11628-5_23⟩. ⟨hal-01060805⟩

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