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Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts,Theory and Applications
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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.read more
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Journal ArticleDOI
Full‐Field Measurements on Low‐Strained Geomaterials Using Environmental Scanning Electron Microscopy and Digital Image Correlation: Improved Imaging Conditions
TL;DR: In this paper, a fast and simple procedure to accurately quantify image noise is proposed and subsequently used to optimise various environmental scanning electron microscope setting parameters, such as dwell time, spot size, working distance and chamber pressure.
Journal ArticleDOI
Experimental Methodology for Studying Strain Heterogeneity with Microstructural Data from High Temperature Deformation
TL;DR: In this article, an experimental methodology has been developed to study materials deformed at high temperatures using high resolution ex situ digital image correlation (DIC), which is an advancement of techniques that have used sub-grain level strain measurements and linked them to microstructural data obtained with electron backscatter diffraction (EBSD).
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Low-cost, portable, robust and high-resolution single-camera stereo-DIC system and its application in high-temperature deformation measurements
TL;DR: In this paper, a low-cost, portable, robust and high-resolution single-camera stereo-digital image correlation (stereo-DIC) system for accurate surface 3D shape and deformation measurements is described.
ReportDOI
A Good Practices Guide for Digital Image Correlation
Rory Bigger,Benoît Blaysat,Christofer Boo,Manuel Grewer,Jun Hu,Amanda Jones,Markus Klein,Pascal Lava,Mark Pankow,Kavesary Raghavan,Phillip L. Reu,Timothy Schmidt,Thorsten Siebert,Micah Simonsen,Andrew Trim,Daniel Z. Turner,Alessandro Vieira,Thorsten Weikert +17 more
Journal ArticleDOI
Comments on the mode II fracture from disk-type specimens for rock-type materials
TL;DR: In this paper, a series of the disk-type specimens of the marble was tested, and digital image correlation (DIC) was used to obtain the displacements surrounding the notch where the fracture mode was identified.