Algorithm for computer tracing of interference fringes

Sridhar Krishnaswamy*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


An algorithm for automatic tracing of fringes from a digitized interferogram is proposed. The main feature of this method is that fringe centers are traced by a predictor-corrector scheme, where knowledge of the approximate fringe normal and tangent at the current point on a fringe is used to guess at a trial location for the next point. A search along the fringe normal at the new trial location then yields the exact next point on the fringe.

Original languageEnglish (US)
Pages (from-to)1624-1628
Number of pages5
JournalApplied Optics
Issue number13
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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