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Binary coded triangular fringes for 3-D surface-shape measurement

  • Jorge L. Flores
  • , García Torales
  • , José A. Ferrari
  • , Gastón Ayubi
  • , Oscar Ed Castillo
  • , Matías Di Martino

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We present a method for synthesizing triangular intensity fringes as a way to solve the problems caused by projector/camera gamma nonlinearity in triangular-pattern phase-shifting profilometry. The fringe generation technique consists of projecting and acquiring a temporal sequence of strictly binary color patterns (code gray), whose (adequately weighted) average leads to triangular fringe patterns with the required number of bits, which allows a reliable three-dimensional profile reconstruction using these methods. Validation experiments are presented.

Original languageEnglish
Pages (from-to)3576-3582
Number of pages7
JournalApplied Optics
Volume52
Issue number15
DOIs
StatePublished - 20 May 2013
Externally publishedYes

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