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Related Experiment Video

Updated: Jun 10, 2026

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
11:34

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

Published on: December 3, 2013

Projection moire fringe pattern prediction using the optical transfer function.

A M Wegdam, O Podzimek, S Zijistra

    Applied Optics
    |August 12, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study presents a theoretical analysis of projection moire fringe patterns (PMFP) using optical transfer functions. Results show how focusing errors impact PMFP quality, validated by experimental measurements.

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    Last Updated: Jun 10, 2026

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    Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
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    Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

    Published on: May 23, 2017

    Area of Science:

    • Optics and Photonics
    • Image Science

    Background:

    • Moire fringe patterns are crucial in metrology and imaging.
    • Understanding factors affecting pattern quality is essential for accurate measurements.

    Purpose of the Study:

    • To theoretically analyze projection moire fringe patterns (PMFP) using optical transfer functions (OTF).
    • To investigate the impact of focusing errors on PMFP quality, using contrast as the primary metric.
    • To compare theoretical predictions with experimental measurements in a diffraction-limited system.

    Main Methods:

    • Developed a theoretical framework for PMFP analysis based on OTF.
    • Quantified PMFP quality using contrast as a key performance indicator.
    • Conducted experiments in a diffraction-limited optical system with controlled focusing errors.

    Main Results:

    • The study establishes a theoretical model linking OTF to PMFP contrast.
    • Demonstrated that focusing errors significantly degrade PMFP contrast.
    • Theoretical predictions for PMFP contrast under focusing errors show good agreement with experimental data.

    Conclusions:

    • The optical transfer function provides a robust theoretical basis for analyzing PMFP quality.
    • Focusing errors are a critical factor influencing the fidelity of projection moire fringe patterns.
    • The validated theoretical model can aid in optimizing optical systems for moire metrology.