Gradient-based polyhedral segmentation for range images

  • Authors:
  • Songtao Li;Dongming Zhao

  • Affiliations:
  • Electrical and Computer Engineering, University of Michigan-Dearborn, 4901 Evergreen Road, Dearborn, MI;Electrical and Computer Engineering, University of Michigan-Dearborn, 4901 Evergreen Road, Dearborn, MI

  • Venue:
  • Pattern Recognition Letters
  • Year:
  • 2003

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Abstract

A novel method is developed for robust polyhedral segmentation of 3-D range images. The method consists of three operations: (1) a two-dimensional gradient histogram space is generated based on gradients along directions of x- and y- coordinates; (2) a four-neighborhood iterative expanding algorithm is developed for region grouping according to a gradient feature space; (3) for noise and regions with geometrical distortion, a merge process is applied to the firstround segmentation results. The experiments show that the proposed algorithm generates good results for understanding polyhedral objects in range images.