A novel coarse-fine search scheme for digital image correlation method

Zhang, Zhifeng; Kang, Yilan; Wang, Huaiwen; Qin, Qing Hua; Qiu, Yu; Li, Xiaoqi

doi:10.1016/j.measurement.2006.03.008

Cited by 110 publications

(46 citation statements)

References 30 publications

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“…Different applications were found and various processing methods were developed aimed at increasing resolution (e.g. Peters et al 1983;Bruck et al 1989;Chen et al 1993;Vendroux and Knauss 1998;Pitter et al 2001;Schreier and Sutton 2002;Wang and Kang 2002;Ma and Guanchang 2003;Pilch et al 2004;Zhang et al 2006;Pan and Li 2011;Rechenmacher et al 2011;Hassan et al 2017). Currently the error in displacement measurements can be as small as 0.01 pixel size.…”

Section: Digital Image Correlationmentioning

confidence: 99%

Computational monitoring in real time: review of methods and applications

Dyskin

Başarır

Doherty

et al. 2018

Geomech. Geophys. Geo-energ. Geo-resour.

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Continuous monitoring of mechanical parameters determining the state of natural and manmade systems is essential in a wide range of engineering disciplines from mechanical to civil and geotechnical engineering. To be effective, the monitoring response time needs to be commensurate with the characteristic time of variation of the processes being monitored e.g. from seconds as for example in some machinery, to weeks and months for mining excavations and years in the case of structures. The methods of measurement can therefore differ significantly for different applications. In spite of this, the methods of information processing-the computational monitoring-have considerable commonality. This review focuses on the methods of computational monitoring in solid and structural mechanics problems in different engineering applications. The traditional methods of monitoring are reviewed along with the corresponding computational and measurement methods. The basic principles of the computational monitoring in real time are established.

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Section: Digital Image Correlationmentioning

confidence: 99%

Computational monitoring in real time: review of methods and applications

Dyskin

Başarır

Doherty

et al. 2018

Geomech. Geophys. Geo-energ. Geo-resour.

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“…Although the proposed algorithm has reduced the determination time of the local deformation, its accuracy is decreased since it does not consider distortion of the deformed subset. In 2006, Zhang et al [30] proposed a novel coarse-fine searching scheme which reduced the computational complexity by as much as 3 percent in comparison with the conventional coarsefine searching scheme. In their work, an affine transform was used to manually determine the approximate location of each pixel in the reference and the deformed images.…”

Section: Improvement Of 2d-dic Algorithms Regarding Their Computationmentioning

confidence: 99%

A Review of Surface Deformation and Strain Measurement Using Two-Dimensional Digital Image Correlation

Khoo¹,

Karuppanan²,

Tan³

2016

Metrology and Measurement Systems

101

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Among the full-field optical measurement methods, the Digital Image Correlation (DIC) is one of the techniques which has been given particular attention. Technically, the DIC technique refers to a non-contact strain measurement method that mathematically compares the grey intensity changes of the images captured at two different states: before and after deformation. The measurement can be performed by numerically calculating the displacement of speckles which are deposited on the top of object's surface. In this paper, the Two-Dimensional Digital Image Correlation (2D-DIC) is presented and its fundamental concepts are discussed. Next, the development of the 2D-DIC algorithms in the past 33 years is reviewed systematically. The improvement of 2D-DIC algorithms is presented with respect to two distinct aspects: their computation efficiency and measurement accuracy. Furthermore, analysis of the 2D-DIC accuracy is included, followed by a review of the DIC applications for two-dimensional measurements.

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“…The matching procedure is commonly considered as one of the most important parts in stereo vision method, can be performed using the subset-based matching technology which is adopted in the 2D-DIC method [5,6]. The principal concept of the 2D-DIC is to match the same object points with subsets between two images before and after load.…”

Section: D Matching Based On Dicmentioning

confidence: 99%

Deformation Test System of Transmission Tower Based on Binocular Vision Method

Jia¹,

Zhang²,

Feng

et al. 2017

MATEC Web Conf.

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Abstract.A test system to measure the deformation of the transmission tower based on binocular vision method is introduced in this work. The test system can achieve the accurate monitoring of the transmission tower deformation, and provide deformation data for the reliability analysis of the transmission tower provides both in static and dynamic measurement. The test system is successfully applied in a tower type test.

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A novel coarse-fine search scheme for digital image correlation method

Cited by 110 publications

References 30 publications

Computational monitoring in real time: review of methods and applications

Computational monitoring in real time: review of methods and applications

A Review of Surface Deformation and Strain Measurement Using Two-Dimensional Digital Image Correlation

Deformation Test System of Transmission Tower Based on Binocular Vision Method

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