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3D surface point and wireframe reconstruction from multiview photographic images

  • Simant Prakoonwit
    ,
  • Ralph Benjamin
Research Output: Contribution to journal Article Peer-review

Abstract

This paper describes a new method for reconstructing 3D surface points and a wireframe on the surface of a freeform object using a small number, e.g. 10, of 2D photographic images. The images are taken at different viewing directions by a perspective camera with full prior knowledge of the camera configurations. The reconstructed surface points are frontier points and the wireframe is a network of contour generators. Both of them are reconstructed by pairing apparent contours in the 2D images. Unlike previous works, we empirically demonstrate that if the viewing directions are uniformly distributed around the object’s viewing sphere, then the reconstructed 3D points automatically cluster closely on a highly curved part of the surface and are widely spread on smooth or flat parts. The advantage of this property is that the reconstructed points along a surface or a contour generator are not under-sampled or under-represented because surfaces or contours should be sampled or represented with more densely points where their curvatures are high. The more complex the contour’s shape, the greater is the number of points required, but the greater the number of points is automatically generated by the proposed method. Given that the viewing directions are uniformly distributed, the number and distribution of the reconstructed points depend on the shape or the curvature of the surface regardless of the size of the surface or the size of the object. The unique pattern of the reconstructed points and contours may be used in 3D object recognition and measurement without computationally intensive full surface reconstruction. The results are obtained from both computer-generated and real objects.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 1509-1518

Journal (Volume, Issue Number)

Image and Vision Computing (Volume 25, Issue 9)

Publication milestones

  • Published - 01/01/2007

Publication status

Published - 01/01/2007

ISSN

0262-8856

External Publication IDs

  • handle.net: 10547/284140
  • Scopus: 34250191455

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