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Gradient Correlation Functions in Digital Image Correlation [PDF]
Applied Sciences, 2019 The performance of seven different correlation functions applied in Digital Image Correlation has been investigated using simulated and experimentally acquired laser speckle patterns. The correlation functions were constructed as combinations of the pure
Mikael Sjödahl
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Optimized patterns for digital image correlation [PDF]
This work presents theoretical background on a novel class of strain sensor patterns. A combination of morphological image processing and Fourier analysis is used to characterize gray-scale images, according to specific criteria, and to synthesize ...
Bossuyt, Sven
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Reconstruction of Cylindrical Surfaces Using Digital Image Correlation [PDF]
Sensors, 2018 A technique for the reconstruction of cylindrical surfaces using optical images with an extension of least squares matching is presented. This technique is based on stereo-image acquisition of a cylindrical object, and it involves displacing the camera ...
Adilson Berveglieri +1 more
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Pixel-level robust digital image correlation [PDF]
Optics Express, 2013 Digital Image Correlation (DIC) is a well-established non-contact optical metrology method. It employs digital image analysis to extract the full-field displacements and strains that occur in objects subjected to external stresses. Despite recent DIC progress, many problematic areas which greatly affect accuracy and that can seldomly be avoided ...
Cofaru, Corneliu +2 more
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Materials Today, 2010 Digital image correlation (DIC) is a classic pattern recognition technique that is widely used for experimental measurements, mainly for: (1) surface displacement analysis in solid mechanics, and (2) particle image velocimetry (PIV) in fluid mechanics. DIC is based on using a correlation function to locate the best matching position of two images thus ...
McCormick, Nick, Lord, Jerry
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Mechanics-aided digital image correlation [PDF]
The Journal of Strain Analysis for Engineering Design, 2013 By construction, digital image correlation is an ill-posed problem. To circumvent this difficulty, regularization is often performed implicitly through the kinematic basis chosen to express the sought displacement fields. Conversely, a priori information on the mechanical behavior of the studied material is often available.
Tomicevic, Zvonimir +2 more
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Axial Force Measurement Using Digital Image Correlation
Nihon Kikai Gakkai ronbunshu, 2022 As a simple and highly accurate axial force management method during manufacturing and maintenance of bolt-tightened structures, we examined a method to calculate the axial force from images of the bolt head. In this method, the axial force is calculated
Takeshi INOUE +3 more
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On the Digital Image Correlation Technique
Materials Today: Proceedings, 2022 Abstract This study has been focused in the introduction of the theoretical and practical foundations of the Digital Image Correlation DIC technique to undergraduate students at EPN through the implementation of a Laboratory DIC practice. In the experimental test, an elastomer with different hole shapes is used as a test specimen, which should have a
Zabala Jorge +2 more
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Structural Identification Using Digital Image Correlation Technology
Engineering Proceedings, 2023 Structural health monitoring has gained increasing research interest, particularly due to the societal concerns tied to the aging of current civil structures and infrastructures.
Samira Azizi +2 more
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Microcontact printing on metallic surfaces for optical deformation measurements; pp. 184–188 [PDF]
Proceedings of the Estonian Academy of Sciences, 2017 The measurement of the properties and behaviour of material is of fundamental importance in modern engineering. In recent years a breakthrough method for measuring surface deformation has been represented by digital image correlation.
Federico Coren +6 more
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