Related Experiment Video
Updated: May 1, 2026
11:34
High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
Published on: December 3, 2013
16.3K
Low-cost optoelectronic system for three-dimensional artwork texture measurement.
Giuseppe Schirripa Spagnolo1, Dario Ambrosini, Domenica Paoletti
1INFM-Dipartimento di Ingegneria Elettronica, Università di Roma Tre, I-00146 Rome, Italy. giuseppe.schirripa@ele.uniroma3.it
Summary
A novel optoelectronic system uses laser-based sinusoidal fringes for 3-D texture measurement. This simple, low-cost system enables accurate 3-D mapping for various applications.
Area of Science:
- Optoelectronics
- Metrology
- Optical Engineering
Background:
- Accurate three-dimensional (3-D) texture measurement is crucial in various fields.
- Existing methods can be complex, costly, or require skilled operators.
Purpose of the Study:
- To propose a new, simple, and low-cost optoelectronic system for 3-D texture measurement.
- To demonstrate the system's capability for in situ measurements by non-skilled operators.
Main Methods:
- Utilizes a laser diode coupled to an optic fiber and a diffractive optical element (DOE) to project sinusoidal fringes.
- Employs phase-shifting synthetic moiré patterns, Fast Fourier Transform (FFT), and signal demodulation for fringe analysis.
- Incorporates specialized software for robust and fast phase unwrapping to reconstruct 3-D shape information.
Main Results:
- The system successfully generates sinusoidal fringes for 3-D texture analysis.
- Phase modulation of projected fringes by object shape allows for 3-D map generation.
- Experimental results validate the system's performance and accuracy.
Conclusions:
- The proposed optoelectronic system offers a cost-effective and user-friendly solution for 3-D texture measurement.
- Its simplicity and suitability for in situ measurements by non-skilled operators make it broadly applicable.
