Octree generation from object silhouettes in perspective views

S. K. Srivastava, N. Ahuja

Research output: Contribution to journalArticlepeer-review


The algorithm described here obtains a polygonal approximation of the object silhouette which is then decomposed into convex components. For each convex component, a pyramid is formed with the view point as its apex and the convex components as a cross section. An octree representation of each of these pyramids is obtained by undertaking intersection detection of the object with the cubes corresponding to octree nodes. A performance index to the algorithm is the ratio of the actual volume of the object to the volume of the object reconstructed from the octree representation. -after Authors

Original languageEnglish (US)
Pages (from-to)68-84
Number of pages17
JournalComputer Vision, Graphics, & Image Processing
Issue number1
StatePublished - 1990

ASJC Scopus subject areas

  • Environmental Science(all)
  • Engineering(all)
  • Earth and Planetary Sciences(all)


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