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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 22 — Aug. 1, 2011
  • pp: 4286–4294

Triangulation of cubic panorama for view synthesis

Chunxiao Zhang, Yan Zhao, and Falin Wu  »View Author Affiliations


Applied Optics, Vol. 50, Issue 22, pp. 4286-4294 (2011)
http://dx.doi.org/10.1364/AO.50.004286


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Abstract

An unstructured triangulation approach, new to our knowledge, is proposed to apply triangular meshes for representing and rendering a scene on a cubic panorama (CP). It sophisticatedly converts a complicated three-dimensional triangulation into a simple three-step triangulation. First, a two-dimensional Delaunay triangulation is individually carried out on each face. Second, an improved polygonal triangulation is implemented in the intermediate regions of each of two faces. Third, a cobweblike triangulation is designed for the remaining intermediate regions after unfolding four faces to the top/bottom face. Since the last two steps well solve the boundary problem arising from cube edges, the triangulation with irregular-distribution feature points is implemented in a CP as a whole. The triangular meshes can be warped from multiple reference CPs onto an arbitrary viewpoint by face-to-face homography transformations. The experiments indicate that the proposed triangulation approach provides a good modeling for the scene with photorealistic rendered CPs.

© 2011 Optical Society of America

OCIS Codes
(100.3010) Image processing : Image reconstruction techniques
(100.4994) Image processing : Pattern recognition, image transforms

ToC Category:
Image Processing

History
Original Manuscript: March 16, 2011
Revised Manuscript: June 16, 2011
Manuscript Accepted: June 17, 2011
Published: July 21, 2011

Citation
Chunxiao Zhang, Yan Zhao, and Falin Wu, "Triangulation of cubic panorama for view synthesis," Appl. Opt. 50, 4286-4294 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-22-4286

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