Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Opt Express. 2009 May 11;17(10):7818-30.

Profilometry without phase unwrapping using multi-frequency and four-step phase-shift sinusoidal fringe projection.

Author information

  • 1School of Electrical Engineering, Seoul National University, Seoul, Korea.

Abstract

A three-dimensional (3D) profilometry method without phase unwrapping is proposed. The key factors of the proposed profilometry are the use of composite projection of multi-frequency and four-step phase-shift sinusoidal fringes and its geometric analysis, which enable the proposed method to extract the depth information of even largely separated discontinuous objects as well as lumped continuous objects. In particular, the geometric analysis of the multi-frequency sinusoidal fringe projection identifies the shape and position of target objects in absolute coordinate system. In the paper, the depth extraction resolution of the proposed method is analyzed and experimental results are presented.

PMID:
19434113
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk