Results 11 to 20 of about 11,614 (198)

Demonstration of a family of X-ray dark-field retrieval approaches on a common set of samples. [PDF]

J Synchrotron Radiat
This study aims to guide users of dark‐field imaging in selecting the most suitable technique for their imaging goals. To this end, we provide a summary table and highlight opportunities for future research into the sources of dark‐field contrast across emerging methods.There are various imaging setups capable of capturing dark‐field images, each with ...
Alloo SJ, How YY, Ahlers JN, Paganin DM, Croughan MK, Morgan KS.   +5 more
europepmc   +2 more sources

High-speed quantitative X-ray multi-contrast imaging with deep learning based modulated pattern analysis. [PDF]

J Synchrotron Radiat
This work presents a neural‐network framework that accelerates X‐ray multi‐contrast imaging—simultaneously delivering absorption, phase, and dark‐field, while maintaining high spatial resolution, and outperforms correlation‐based methods in speed, achieving a favorable balance between resolution and throughput.
Qiao Z, Yao Y, Chen H, Du G, Wen P, Guan Z, Tong Y, Shi X, Jiang H.   +8 more
europepmc   +2 more sources

Coherence evaluation and first demonstration of multi-contrast X-ray computed tomography on NanoTerasu BL09W with an X-ray Talbot interferometer. [PDF]

J Synchrotron Radiat
Coherence properties were evaluated and multi‐contrast X‐ray computed tomography was demonstrated using an X‐ray Talbot interferometer on the NanoTerasu beamline BL09W. The results confirm the high spatial coherence and imaging performance of the source, paving the way for advanced X‐ray phase imaging.We report on the coherence evaluation of the ...
Ueda R, Liang X, Kamezawa C, Sumiishi H, Bishago Y, Nishio T, Yoshida J, Daimon M, Hiramoto S, Voegeli W, Shirasawa T, Vagovič P, Yamane H, Nakamura T, Yashiro W.   +14 more
europepmc   +2 more sources

Deep Learning-Based Wrapped Phase Denoising Method for Application in Digital Holographic Speckle Pattern Interferometry

Applied Sciences, 2020
This paper presents a new processing method for denoising interferograms obtained by digital holographic speckle pattern interferometry (DHSPI) to serve in the structural diagnosis of artworks.
Ketao Yan, Lin Chang, Michalis Andrianakis, Vivi Tornari, Yingjie Yu   +4 more
doaj   +1 more source

Dynamic Deformation Measurement of Specular Surface with Deflectometry and Speckle Digital Image Correlation

Sensors, 2020
The deformation measurement of a specular surface is of great importance during the quality inspection and installation of optical elements or wafers, especially those with large apertures.
Yao Hu, Shaopu Wang, Xuemin Cheng, Chengqiang Xu, Qun Hao   +4 more
doaj   +1 more source

Effect of the Speckle Size on the Quality of Speckle Pattern in DSPI System

IEEE Access, 2019
In order to detect the deformation and strain of materials accurately, the key is to obtain the phase information caused by dynamic loading in digital speckle pattern interferometry (DSPI).
Zhisong Li, Ping Zhong, Xin Tang, Jiayao Ling, Jiawei Chen, Guoxing He   +5 more
doaj   +1 more source

Modern optical astronomy: technology and impact of interferometry [PDF]

, 2002
The present `state of the art' and the path to future progress in high spatial resolution imaging interferometry is reviewed. The review begins with a treatment of the fundamentals of stellar optical interferometry, the origin, properties, optical ...
Ables, J. G., Aime, C., Akeson, R., Anderson, J. A., Angel, J. R. P., Angel, J. R. P., Angel, J. R. P., Angel, J. R.,, Antoshkin, L. V., Aretxaga, I., Armstrong, J.,, Arnold, L., Ayers, G. R., Baba, N., Baba, N., Baba, N., Babcock, H. W., Babcock, H. W., Bagnuolo, W. G., Jr., Baldwin, J., Baldwin, J., Baldwin, J., Baldwin, J. E., Baldwin, J. E., Balick, B., Barlow, M. J., Barnaby, D., Beckers, J. M., Bedding, T., Bedding, T. R., Beichman, C., Benson, J., Berger, J., Berio, P., Berio, P., Bester, M., Blazit, A., Blöcker, T., Boccaletti, A., Boccaletti, A., Boden, A.,, Bonneau, D.,, Bonneau, D.,, Bouvier, J., Bracewell, R. N., Brandl, B., Brandner, W., Bruns, D., Burge, J. H., Burns, D., Burns, D., Butler, R.,, Cadot, O., Callados, M.,, Carleton, N., Cassinelli, J., Charbonneau, D., Clampin, M., Clampin, M., Close, L., Colavita, M., Colavita, M., Colavita, M.,, Conan, J.-M., Conan, R., Cooper, D., Cornwell, T. J.,, Coudé du Foresto, V., Coulman, C. E., Coulman, C. E., Currie, D., Danchi, W. C., Danchi, W. C., Dantowitz, R., Davidge, T. J., Davidge, T. J., Davis, J., Davis, J., Davis, J., Davis, J., Dayton, D., Dejonghe, J., Denker, C., Derie, F., DiBenedetto, G. P., Drummond, J., Dullemond, C. P., Dyck, H., Dyck, H., Ebstein, S., Eke, V., Elias, N. M., Falcke, H., Faucherre, M., Fienup, J. R., Fischer, O., Fizeau, H., Foy, R., Foy, R., Fried, D. L., Fugate, R., Gauger, A., Gerchberg, R. W., Gies, R., Glindemann, A., Golimowski, D. A., Gonsalves, S. A., Gorham, P. W., Greenwood, D. P., Haguenauer, P., Hajian, A., Hale, D., Hale, D., Hanbury Brown, R., Hanbury Brown, R., Haniff, C., Harmanec, P., Hartley, M., Harvey, J. W., Harvey, J. W., Hawley, S. A., Hege, E., Hestroffer, D., Heydari, M., Hill, J. M., Hinz, P., Hofmann, K.-H., Hummel, C., Hutchings, J., Hutchings, J., Hutchings, J., Högbom, J., Jefferies, S., Jennison, R. C., Karovska, M., Kenworthy, M., Kervella, P., Knox, K., Koechlin, L., Korff, D., Kunz, M., Labeyrie, A., Labeyrie, A., Labeyrie, A., Labeyrie, A., Labeyrie, A., Labeyrie, A., Labeyrie, A., Labeyrie, A., Labeyrie, A., Lai, O., Lai, O., Lane, B., Lannes, A., Lawson, P., Lawson, P., Lawson, P. R., Lawson, P. R., Ledoux, C., Lee, J., Lefèvre, H. C., Liang, J., Lindengren, L., Lipman, E., Liu, Y. C., Lloyd-Hart, M., Lloyd-Hart, M., Lohmann, A., Lopez, B., Lovelock, J. E., Lucy, L., Lynds, C., Léger, A., Machida, Y., Mackay, C. D., Magain, P., Malbet, F., Marco, O., Masciadri, E., Mason, B., Mason, B. D., Mayor, M., McAlister, H., Mennesson, B., Men’shchikov, A., Michelson, A. A., Michelson, A. A., Millan-Gabet, R., Monnier, J., Monnier, J., Monnier, J., Morel, S., Morel, S., Mouillet, D., Mourard, D., Mourard, D., Mozurkewich, D., Márquez, I., Nakajima, T., Nakajima, T., Natta, A., Nelkin, M., Nisenson, P., Nisenson, P., Nordgren, T., Northcott, M. J., Nota, A., Nulsen, P., Padilla, C., Papaliolios, C., Papaliolios, C., Pauls, T., Paxman, R., Pedretti, E., Pedretti, E., Pehlemann, E., Penny, A., Perrin, G., Perrin, G., Perrin, G., Perryman, M. A. C., Poulet, F., Pourbaix, D., Prieur, J., Quirrenbach, A., Quirrenbach, A., Quirrenbach, A., Rabbia, Y., Ragazzoni, R., Reinheimer, T., Richardson, W. H., Ridgway, S. T., Rimmele, T. R., Robbe, S., Robertson, N. A., Roddier, C., Roddier, F., Roddier, F., Roddier, F., Roddier, F., Roggemann, M. C., Rouan, D., Rouan, D., Rouan, D., Rousselet-Perraut, K., Rousset, G., Ryan, S., Saha, S. K., Saha, S. K., Saha, S. K., Saha, S. K., Saha, S. K., Saha, S. K., Sams, B. J., Sato, K., Schertl, D., Schöller, M., Seldin, J., Seldin, J., Serabyn, E., Shannon, C. J., Shao, M., Shao, M., Shao, M., Sicardy, B., Simon, M., Stee, P., Stee, P., Swapan K. Saha, Tango, W. J., Tatarski, V. I., Thom, C., Thompson, L. A., Timothy, J. G., Torres, G., Townes, C. H., Traub, W. A., Traub, W. A., Traub, W. A., Troxel, S. E., Tuthill, P., Tuthill, P., Tuthill, P. G., Tuthill, P. G., Tuthill, P. G., Ulrich, M., Unwin, S., Vakili, F., Vakili, F., van Belle, G., van Belle, G., van Belle, G., Von der Lühe, O., Walkup, J. F., Wallace, J., Weigelt, G., Weigelt, G., Weigelt, G., Weigelt, G., Weigelt, G., Weinberger, A., Wilken, V., Wilson, R., Wittkowski, M., Wittkowski, M., Wittkowski, M., Wittkowski, M., Wood, P., Wood, P., Worden, S. P., Wyngaard, J. C., Young, A. T., Young, J.   +312 more
core   +2 more sources

The stress and strain distribution in X10CrMoVNb9-1 power engineering steel after long time degradation studied by the ESPI system [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022
Maintenance of assets and equipment in power plants is essential for their safety and is required to help the plant stay active. In this paper, the specimens manufactured from a pipe of X10CrMoVNb9-1 (P91) power engineering steel in the as-received state
Mateusz Kopec
doaj   +1 more source

Stress and Strain Fields Analysis by Method ESPI with Use of Fixture for Shear Examination Arcan [PDF]

Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2013
This article describes the possibilities of utilizing of ESPI - Electronic Speckle Pattern Interferometry for system Q-100 application for strain and stress analysis on surface of flat specimens predominantly loaded by shear deformation.
Matúš KALINA, Luboš PEČENKA, František ŠIMČÁK   +2 more
doaj   +1 more source

Quantitative analysis of speckle-based X-ray dark-field imaging using numerical wave-optics simulations

Scientific Reports, 2021
The dark-field signal measures the small-angle scattering strength and provides complementary diagnostic information. This is of particular interest for lung imaging due to the pronounced small-angle scatter from the alveolar microstructure.
Sebastian Meyer, Serena Z. Shi, Nadav Shapira, Andrew D. A. Maidment, Peter B. Noël   +4 more
doaj   +1 more source