Design and fabrication of digital dual-frequency patterns for projected fringe profilometry

Wei Hung Su, Yi Ling Hsu, Cho Yo Kuo, Hong Ming Chen, Wei Chen Su, Shizhuo Yin

Research output: Contribution to journalConference articlepeer-review

Abstract

One key problem of fringe projection techniques for 3D shape measurements is the limited phase unambiguity range when only one grating period is used. Dual-frequency patterns in which involves two grating periods can easily extend the unambiguity range. A method to fabricate accurate dual-frequency patterns is presented. The advantage of using digital dual-frequency patterns for projected fringe profilometry are (1) high geometrical accuracy (< 0.5μm); (2) high contrast ratio; (3) very low high order harmonic distortions; and (4) extended unambiguity range.

Original languageEnglish (US)
Article number20
Pages (from-to)132-141
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5606
DOIs
StatePublished - 2004
EventTwo- and Three-Dimensional Vision Systems for Inspection, Control, and Metrology II - Philadelphia, PA, United States
Duration: Oct 26 2004Oct 27 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Design and fabrication of digital dual-frequency patterns for projected fringe profilometry'. Together they form a unique fingerprint.

Cite this