Publication:
A volumetric fusion technique for surface reconstruction from silhouettes and range data

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English

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Optical triangulation, An active reconstruction technique, is known to be an accurate method but has several shortcomings due to occlusion and laser reflectance properties of the object surface, that often lead to holes and inaccuracies on the recovered surface. Shape from silhouette, on the other hand, As a passive reconstruction technique, yields robust, hole-free reconstruction of the visual hull of the object. in this paper, A hybrid surface reconstruction method that fuses geometrical information acquired from silhouette images and optical triangulation is presented. Our motivation is to recover the geometry from silhouettes on those parts of the surface which the range data fail to capture. a volumetric octree representation is first obtained from the silhouette images and then carved by range points to amend the missing cavity information. an isolevel value on each surface cube of the carved octree structure is accumulated using local surface triangulations obtained separately from range data and silhouettes. the MARChing cubes algorithm is then applied for triangulation of the volumetric representation. the performance of the proposed technique is demonstrated on several real objects.

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Computer Vision and Image Understanding

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academic Press inc Elsevier Science

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Computer Science, Artificial intelligence, Electrical electronics engineering

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