Least-squares-based fitting of paraboloids

  • Authors:
  • Min Dai;Timothy S. Newman;Chunguang Cao

  • Affiliations:
  • Department of Computer Science, University of Alabama in Huntsville, Huntsville, AL 35899, USA;Department of Computer Science, University of Alabama in Huntsville, Huntsville, AL 35899, USA;Department of Computer Science, University of Alabama in Huntsville, Huntsville, AL 35899, USA

  • Venue:
  • Pattern Recognition
  • Year:
  • 2007

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Abstract

A technique for reconstructing a class of quadric surfaces from 3D data is presented. The technique is driven by a linear least-squares-based fitting mechanism. Previously, such fitting was restricted to recovery of central quadrics; here, extension of that basic mechanism to allow recovery of one commonly-occurring class of non-central quadric, the elliptic paraboloids, is described. The extension uses an indirect solution approach that involves introducing a variable to the basic mechanism that is a function of a quadric surface invariant. Results from fitting real and synthetic data are also exhibited.