Results 31 to 40 of about 243,543 (304)
A space–time approach in digital image correlation: Movie-DIC [PDF]
, 2011 A new method is proposed to estimate arbitrary velocity fields from a time series of images acquired by a single camera. This approach, here focused on a single spatial plus a time dimension, is specialized to the decomposition of the velocity field over
GUÉRARD, Sandra +7 more
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Time‐resolved integrated digital image correlation [PDF]
International Journal for Numerical Methods in Engineering, 2015 SummaryThis paper discusses a method that provides the direct identification of constitutive model parameters by intimately integrating the finite element method (FEM) with digital image correlation (DIC), namely, directly connecting the experimentally obtained images for all time increments to the unknown material parameters. The problem is formulated
Neggers, J. +4 more
openaire +3 more sources
Single-axis combined shearography and digital speckle photography instrument for full surface strain characterization [PDF]
, 2005 Full characterization of the surface strain requires the measurement of six displacement gradient components of the surface strain tensor. The out-of-plane displacement gradient component may be directly measured using the full-field speckle ...
Fu, S. +3 more
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A Metallic Fracture Estimation Method Using Digital Image Correlation [PDF]
, 2022 This paper proposes a metallic fracture estimation method that combines digital image correlation and convolutional neural networks, based on a proven theory that the strain distribution of a component changes when a crack occurs in a structure. By using
Weifei Qian +5 more
core +1 more source
On image gradients in digital image correlation
International Journal for Numerical Methods in Engineering, 2015 SummaryIn digital image correlation (DIC), the unknown displacement field is typically identified by minimizing the linearized form of the brightness conservation equation, while the minimization scheme also involves a linearization, yielding a two‐step linearization with four implicit assumptions.
J. Neggers +3 more
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EVALUATION OF CORRELATIONAL INFORMATION IN DIGITIZED CELL IMAGES [PDF]
Journal of Histochemistry & Cytochemistry, 1974 The processing of digitized cell images by computer may yield information not only about a set of cell image properties but also about their mutual dependencies. Observation of the covariance matrix of image properties of cellular material showing a response to chemotherapeutic treatment, ionizing radiation or antigenic challenge or following a ...
P H, Bartels +5 more
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Identification of Lüders bands using digital image correlation [PDF]
The Holistic Approach to Environment, 2019 This paper presents the characterization of Lüders bands by digital image correlation on niobium microalloyed steel during a static tensile testing.
Tin Brlić +4 more
doaj +1 more source
Application of Digital Image Correlation to Cement Paste [PDF]
The 18th International Conference on Experimental Mechanics, 2018 In this paper digital image correlation (DIC) has been applied to study the deformation process of cementitious material at very early age. After mixing of cement-based materials, the cement hydration process begins. Consequently, the ongoing chemical reactions result in a 3D deformation process (shrinkage).
Evin Dildar Dzaye +2 more
openaire +2 more sources
Digital image correlation: displacement accuracy estimation
EPJ Web of Conferences, 2010 The aim of this collaborative work is to study the uncertainties associated with Digital Image Correlation techniques (DIC). More specifically, the link between displacement uncertainties and several correlation parameters chosen by the user and relative
Wattrisse B. +3 more
doaj +1 more source
Meta-lens digital image correlation
Opto-Electronic AdvancesWith the same level of measurement accuracy, more portable and miniaturized measurement systems will have greater advantages, providing users with more flexible and convenient measurement solutions.
Zhou Zhao +11 more
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