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High-speed digital-image correlation method
Optics Letters, 2009Provided that the software and hardware equipment in a digital-image correlation method is unchanged, the only major factor affecting integer-pixel correlation computation precision and the integer-pixel processing time is the size of the computing window.
Min, Wang, Hao, Wang, Yuwan, Cen
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Digital Image Correlation (DIC)
2021Digital image correlation (DIC) is a full-field non-contacting optical method that can capture the shape, motion, and deformation of solid objects. The basis of the method is the matching of the gray values of points from an image of the surface of an object before and after deformation.
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Kernel based Digital Image Correlation
International Journal of Signal Processing, Image Processing and Pattern Recognition, 2015Digital image correlation (DIC) is an effective displacement field measurement method featuring non-contact and full-field, which has been successfully applied in lots of fields, especially in the field of experimental mechanics. Unfortunately, the traditional DIC technique (TDIC) depends on the output values of image sensor heavily that usually noised
Huan Shen, Peize Zhang, Xiang Shen
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Augmented Lagrangian Digital Image Correlation
Experimental Mechanics, 2018Digital image correlation (DIC) is a powerful experimental technique for measuring full-field displacement and strain. The basic idea of the method is to compare images of an object decorated with a speckle pattern before and after deformation, and thereby to compute the displacement and strain fields.
Yang, J., Bhattacharya, K.
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Improved Digital Image Correlation method
Optics and Lasers in Engineering, 2016Abstract Digital Image Correlation (DIC) is a powerful technique which is used to correlate two image segments to determine the similarity between them. A correlation image is formed which gives a peak known as correlation peak. If the two image segments are identical the peak is known as auto-correlation peak otherwise it is known as cross ...
Asloob Ahmad Mudassar, Saira Butt
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Three-dimensional facial digitization using advanced digital image correlation
Applied Optics, 2018Presented in this paper is an effective technique to acquire the three-dimensional (3D) digital images of the human face without the use of active lighting and artificial patterns. The technique is based on binocular stereo imaging and digital image correlation, and it includes two key steps: camera calibration and image matching.
Hieu Nguyen +3 more
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High-speed digital-image correlation method: comment
Optics Letters, 2010We comment on the recent letter by Wang et al. [Opt. Lett. 34, 1955 (2009)], in which the authors presented a high-speed digital image correlation (DIC) method. We consider that the so-called high-speed DIC method has considerable deficiencies and that the Letter is misleading in terms of applicability and measurement accuracy as well as processing ...
Zhaoyang, Wang +4 more
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2016
In order to detect the occurrence of failure in a material, visual observation is a very intuitive approach. Although global failure is many times easier to observe visually, more dedicated analysis is required to detect small changes indicating the occurrence of first failure.
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In order to detect the occurrence of failure in a material, visual observation is a very intuitive approach. Although global failure is many times easier to observe visually, more dedicated analysis is required to detect small changes indicating the occurrence of first failure.
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Self-adaptive Isogeometric Global Digital Image Correlation and Digital Height Correlation
This work explores the full potential of isogeometric shape functions for global digital image correlation. To this end, a novel DIC and DHC (digital height correlation) methodology have been developed based on adaptive refinement of isogeometric shape functions.Hoefnagels, J.P.M. +4 more
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Overview of Digital Image Correlation
2015This chapter provides an introduction to the methods for measuring the field of displacement and strain on the surface of a specimen by means of digital image correlation (DIC) techniques. Both its two-dimensional and three-dimensional versions are presented. A simplified overview of the algorithms underlying such a method is provided.
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