Exploration trees on highly complex scenes: A new approach for 3D segmentation

  • Authors:
  • P. Merchán;A. Adán

  • Affiliations:
  • Escuela de Ingenierías Industriales, Universidad de Extremadura, 06071 Badajoz, Spain;Escuela Superior de Informática, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain

  • Venue:
  • Pattern Recognition
  • Year:
  • 2007

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Abstract

A new strategy for automatic object extraction in highly complex scenes is presented in this paper. The method proposed gives a solution for 3D segmentation avoiding most restrictions imposed in other techniques. Thus, our technique is applicable on unstructured 3D information (i.e. cloud of points), with a single view of the scene, scenes consisting of several objects where contact, occlusion and shadows are allowed, objects with uniform intensity/texture and without restrictions of shape, pose or location. In order to have a fast segmentation stopping criteria, the number of objects in the scene is taken as input. The method is based on a new distributed segmentation technique that explores the 3D data by establishing a set of suitable observation directions. For each exploration viewpoint, a strategy [3D data]-[2D projected data]-[2D segmentation]-[3D segmented data] is accomplished. It can be said that this strategy is different from current 3D segmentation strategies. This method has been successfully tested in our lab on a set of real complex scenes. The results of these experiments, conclusions and future improvements are also shown in the paper.