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Updated: Oct 12, 2025
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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
Published on: December 3, 2013
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Defocused binary fringe phase error modeling and compensation using depth-discrete Fourier series fitting.
Applied Optics
|November 22, 2021
Summary
Binary defocus fringe projection enhances speed in 3D profilometry. This study introduces a model and compensation method to correct phase errors in projected patterns, improving measurement accuracy.
Area of Science:
- Optics and Photonics
- Metrology
- Computer Vision
Background:
- Binary defocus fringe projection is a fast technique for 3D profilometry.
- Deviations in projected patterns occur at different depths, causing measurement errors.
Purpose of the Study:
- To develop a theoretical model and compensation method for phase errors in defocus-projected patterns.
- To improve the accuracy of 3D profilometry using binary defocus fringe projection.
Main Methods:
- Low-pass filtering projected patterns at various depths to establish ideal patterns.
- Calibrating a phase error model using discrepancies between original and ideal fringe patterns.
Main Results:
- A calibrated phase error model capable of compensating errors at arbitrary depths within a defined volume.
- Experimental validation demonstrating the feasibility and effectiveness of the proposed compensation method.
Conclusions:
- The proposed theoretical model and compensation method effectively address phase errors in binary defocus fringe projection.
- This technique enhances the accuracy and reliability of 3D profilometry measurements.
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