Projected fringe profilometry using a liquidcrystal spatial light modulator to extend the depth measuring range

Wei Hung Su, Chun Hsiang Hsu, Wei Chia Su, Jung Ping Liu

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An approach using a liquid-crystal spatial light modulator (LC-SLM) to enlarge the depth measuring range of the projected fringe profilometry is presented. This approach is especially applicable to detect dynamic objects with micro-scale sizes. Compared with a typical 2D image system, the LC-SLM provides a better performance for a 3D shape sensing system. The main advantages include (1) a much higher allowance to increase in the depth measuring range, (2) easiness to compensate perspective distortion and geometric distortion, (3) very high accuracy (in the micron-range) and (4) only one phase measurement needed for operation.

Original languageEnglish
Pages (from-to)3272-3283
Number of pages12
JournalOptics Express
Volume19
Issue number4
DOIs
Publication statusPublished - 2011 Feb 14

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light modulators
liquid crystals
allowances

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Su, Wei Hung ; Hsu, Chun Hsiang ; Su, Wei Chia ; Liu, Jung Ping. / Projected fringe profilometry using a liquidcrystal spatial light modulator to extend the depth measuring range. In: Optics Express. 2011 ; Vol. 19, No. 4. pp. 3272-3283.
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Projected fringe profilometry using a liquidcrystal spatial light modulator to extend the depth measuring range. / Su, Wei Hung; Hsu, Chun Hsiang; Su, Wei Chia; Liu, Jung Ping.

In: Optics Express, Vol. 19, No. 4, 14.02.2011, p. 3272-3283.

Research output: Contribution to journalArticle

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