Three-Dimensional Shape and Deformation Measurements Based on Fringe Projection Profilometry and Fluorescent Digital Image Correlation via a 3 Charge Coupled Device Camera

Article Chemistry, Analytical

High-Accuracy Three-Dimensional Deformation Measurement System Based on Fringe Projection and Speckle Correlation

Chuang Zhang et al.

SENSORS (2023)

Article Engineering, Mechanical

Experimental Measurements Using Digital Image Correlation Methods: Brief Background and Perspective on Future Developments

Michael A. Sutton

Summary: This article provides a brief description of digital image correlation (DIC) methods and their development, as well as the author's personal perspective on recent and future developments utilizing DIC measurements.

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME (2023)

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Article Materials Science, Multidisciplinary

Rapid and Repeatable Fluorescent Speckle Pattern Fabrication Using a Handheld Inkjet Printer

K. Zhu et al.

Summary: This study proposes a method for fabricating fluorescent speckle patterns using a handheld inkjet printer. By printing numerically generated speckle patterns on test samples and illuminating them with ultraviolet light, high-contrast speckle images can be produced. Experimental results confirm the better quality and measurement results of the printed fluorescent speckle patterns.

EXPERIMENTAL MECHANICS (2022)

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Article Optics

Internal displacement measurements based on color fluorescent speckle pattern by multispectral stereo-DIC and refractive index correction

Zhenning Chen et al.

Summary: In this study, a new method is proposed to measure the internal displacement of transparent objects using fluorescent speckle patterns. By utilizing multispectral stereo-DIC and refractive index correction, the displacements of both external and internal layers can be measured simultaneously, while correcting for errors caused by refraction.

APPLIED OPTICS (2022)

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Article Optics

Three-dimensional measurement method of color fringe projection based on an improved three-step phase-shifting method

Xiaojie Duan et al.

Summary: The study introduces a 3D measurement method of color fringe projection based on an improved three-step phase-shifting method, which enhances measurement speed and reduces errors by introducing the Hilbert transform to accurately obtain the phase distribution information of the entire field.

APPLIED OPTICS (2021)

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Article Optics

Reconstruction of moving object with single fringe pattern based on phase shifting profilometry

Yifan Wei et al.

Summary: This paper proposes a new 3D reconstruction method for moving objects based on Phase Shifting Profilometry (PSP) by projecting single fringe patterns. The movement of the object causes phase variation in the projected fringe pattern, which is utilized for retrieving phase values and reconstructing 3D models. The effectiveness of the proposed method is verified through simulations and experiments.

OPTICAL ENGINEERING (2021)

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Article Optics

A comparative study on temporal phase unwrapping methods in high-speed fringe projection profilometry

Xiaoyu He et al.

Summary: Phase unwrapping is critical in fringe projection profilometry to recover a continuous phase map, with temporal phase unwrapping being more widely used due to its ability to measure discontinuous objects. This study compares the accuracy of two-frequency (TF), phase coding (PC), and gray code (GC) methods, finding that GC provides higher accuracy in high-speed measurement scenarios.

OPTICS AND LASERS IN ENGINEERING (2021)

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Review Optics

Calibration of fringe projection profilometry: A comparative review

Shijie Feng et al.

Summary: In this work, a review of some of the most commonly used calibration methods in fringe projection profilometry is presented. The study covers basic principles, advantages, limitations, and factors affecting the performance of calibration methods. Quantitative and qualitative comparative experiments are used to showcase the advantages and suitability of each method.

OPTICS AND LASERS IN ENGINEERING (2021)

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Article Optics

A DIC-assisted fringe projection profilometry for high-speed 3D shape, displacement and deformation measurement of textured surfaces

Zhoujie Wu et al.

Summary: By using a high-speed 3D shape measurement system with Gray-coded coding strategy and modulation-based method, accurate reconstruction of textured surfaces and high-quality texture map retrieval can be achieved. Matching surface texture images at different states using DIC enables accurate point tracking between measured 3D shape data, leading to precise 3D displacement and deformation measurement.

OPTICS AND LASERS IN ENGINEERING (2021)

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Proceedings Paper Engineering, Mechanical

Simplified measurement of the strain to fracture for plane strain tension: On the use of 2D DIC for dual hole plane strain tension mini Nakazima specimens with dihedral punch

M. Adlafi et al.

Summary: The study introduces a new experimental technique for measuring the fracture strain of sheet metal after proportional loading under plane strain conditions. This new setup allows for a greater maximum attainable strain compared to the traditional V-Bending test, and ensures that fracture will always initiate after proportional loading in a plane strain tension stress state.

INTERNATIONAL DEEP-DRAWING RESEARCH GROUP CONFERENCE (IDDRG 2021) (2021)

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Article Engineering, Manufacturing