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Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts,Theory and Applications

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TLDR
In this paper, a comprehensive overview of image correlation for shape, motion and deformation measurements is provided. But, the authors do not discuss the effect of out-of-plane motion on 2D measurements.
Abstract
Image Correlation for Shape, Motion and Deformation Measurements provides a comprehensive overview of data extraction through image analysis. Readers will find and in-depth look into various single- and multi-camera models (2D-DIC and 3D-DIC), two- and three-dimensional computer vision, and volumetric digital image correlation (VDIC). Fundamentals of accurate image matching are described, along with presentations of both new methods for quantitative error estimates in correlation-based motion measurements, and the effect of out-of-plane motion on 2D measurements. Thorough appendices offer descriptions of continuum mechanics formulations, methods for local surface strain estimation and non-linear optimization, as well as terminology in statistics and probability. With equal treatment of computer vision fundamentals and techniques for practical applications, this volume is both a reference for academic and industry-based researchers and engineers, as well as a valuable companion text for appropriate vision-based educational offerings.

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Journal ArticleDOI

A new procedure of modal parameter estimation for high-speed digital image correlation

TL;DR: In this article, the authors proposed a measuring chain for the correlation system Q-450 and developed a software application called DICMAN 3D, which allows the direct use of this system in the area of modal testing.
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Shape and deformation measurement system by combining fringe projection and digital image correlation

TL;DR: In this paper, an optical measurement system was developed by the combination of fringe projection and a two-dimensional digital image correlation (DIC) technique, which is capable of simultaneously measuring surface profile and 3D deformation of small objects.
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Projection Savings in CT-based Digital Volume Correlation

TL;DR: In this article, a single reference volume and very few radiographs of the deformed configuration may be sufficient to evaluate 3D displacement fields, which can reduce the needed number of projection data by several orders of magnitude as shown on an experimental data set.
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Crack opening behavior in ceramic matrix composites

TL;DR: In this article, the evolution of matrix cracks in a melt-infiltrated SiC/SiC ceramic matrix composite (CMC) under uniaxial tension was examined using scanning electron microscopy (SEM) combined with digital image correlation (DIC) and manual crack opening displacement (COD) measurements.
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Full field measurements of anisotropic stress intensity factor ranges in fatigue

TL;DR: In this paper, the effects of anisotropy during mixed mode fatigue crack growth were studied in single crystal 316L stainless steel, and an anisotropic least-squares regression algorithm using displacements from digital image correlation was developed to find the effective stress intensity factors, KI and KII, and the T-stress.
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