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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.read more
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Journal ArticleDOI
A practical approach to optimizing the preparation of speckle patterns for digital-image correlation
TL;DR: In this article, the authors define the ideal speckle size in relation to the specimen size and acquisition system, and provide practical guidelines to identify the optimal settings of an airbrush gun, in order to produce a pattern that is as close as possible to the desired one while minimizing the scatter of speckles sizes.
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Application of digital image correlation in investigating the bond between FRP and masonry
TL;DR: In this article, the authors used the digital image correlation (DIC) and feature tracking techniques for investigating the evolution of strains and deformation during uniaxial tensile tests and shear debonding tests in externally bonded reinforcement (EBR) technique in FRP-masonry systems.
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Full-field measurement and fracture characterisations of rocks under dynamic loads using high-speed three-dimensional digital image correlation
TL;DR: In this article, a series of dynamic tests was conducted on Hawkesbury sandstones using a split Hopkinson pressure bar (SHPB) at three different strain rates, and real-time images of the loaded specimen were captured by two high-speed cameras at a frame rate of 200,000 frames per second (fps) with a resolution of 256,×256 pixels.
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Localized deformation induced by heterogeneities in porous carbonate analysed by multi-scale digital image correlation
TL;DR: In this article, the 2D Digital Image Correlation (DIC) technique has been applied to sequences of images taken from carbonate samples during uniaxial compression tests.
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RGB-D datasets using microsoft kinect or similar sensors: a survey
TL;DR: This paper systematically survey popular RGB-D datasets for different applications including object recognition, scene classification, hand gesture recognition, 3D-simultaneous localization and mapping, and pose estimation to guide researchers in the selection of suitable datasets for evaluating their algorithms.