Two-Step Fringe Analysis for Fringe Projection Profile Measurement

Terry Yuan Fang Chen, Jhih Yao Huang, Bo Wei Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Digital fringe projection method is a noncontact surface profiling technique. For accurate measurement, phase-shifting technique is usually adopted. However, the specimen may be moved during the time of image capture, and not suitable for dynamic measurement. In order to overcome this drawback, a digital fringe projection system consisting a color projector, a color CCD camera, and a PC is proposed. The phase shift is introduced between two computer-generated fringe patterns with different colors, which is projected onto the object to be measured simultaneously. The projected fringe patterns are captured by the color CCD camera and separated and processed by a two-step fringe analysis scheme using spiral phase transform and optical flow techniques. The proposed system was applied to a real specimen. The test results are reported.

Original languageEnglish
Title of host publicationAdvancement of Optical Methods and Fracture and Fatigue, Volume 3 - Proceedings of the 2023 Annual Conference on Experimental and Applied Mechanics
EditorsCosme Furlong, Chi-Hung Hwang, Gordon Shaw, Ryan Berke, Garrett Pataky, Shelby Hutchens
PublisherSpringer
Pages29-31
Number of pages3
ISBN (Print)9783031504983
DOIs
Publication statusPublished - 2024
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2023 - Orlando, United States
Duration: 2023 Jun 52023 Jun 8

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

ConferenceSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2023
Country/TerritoryUnited States
CityOrlando
Period23-06-0523-06-08

All Science Journal Classification (ASJC) codes

  • General Engineering
  • Computational Mechanics
  • Mechanical Engineering

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