A note on computing the saddle values in isosurface polygonization

Chyi Cheng Lin, Yu-Tai Ching*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations


The ambiguity problem of the marching cubes method can be solved by constructing isosurfaces that are topologically consistent with the trilinear interpolant. This can be achieved by computing the saddle values of the interpolant. In this note, we analyze the trilinear interpolant and derive an efficient method of computing the saddle values.

Original languageEnglish
Pages (from-to)342-344
Number of pages3
JournalVisual Computer
Issue number7
StatePublished - 1 Jan 1997


  • Marching cubes
  • Saddle value
  • Topology consistency
  • Volume visualization

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