Zobrazeno 1 - 10
of 61
pro vyhledávání: '"M. Tziraki"'
Autor:
K Tourlakopoulos, M Tziraki, D Raptis, O Kotsiou, S Boutlas, G Rapti, I V Papathanasiou, D Papagiannis, Z Daniil, K I Gourgoulianis, F Malli
Publikováno v:
13.02 - Pulmonary embolism.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90f9def7f246bef2ae5f8af0c788fc36
https://doi.org/10.1183/13993003.congress-2022.3368
https://doi.org/10.1183/13993003.congress-2022.3368
Publikováno v:
SPIE BiOS conference on Optical Elastography and Tissue Biomechanics II
We present a dual wavelength endoscope which uses Endoscopic Laser Speckle Contrast Analysis (ELASCA) with the aim to image tissue blood flow and perfusion during surgical procedures. In this study we measure speckle decorelation times, which are ass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00b446dfefe3cd155c43d5e9c5635b2c
http://hdl.handle.net/10044/1/23353
http://hdl.handle.net/10044/1/23353
Autor:
Y. Gu, M. Itoh, M. R. Melloch, Z. Ansari, Paul M. W. French, Christopher Dunsby, Richard Jones, M. Tziraki, D. Parsons-Karavassilis, David D. Nolte, Jan Siegel, W. Headley
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 7:878-886
In this paper, we briefly review our work on low-coherence photorefractive holography and report on the current state of the art. We present what is, to the best of our knowledge, the fastest-ever three-dimensional (3-D) imaging system and present re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e998c69b94dd30ea16783b68b50fcc0b
https://doi.org/10.1109/2944.983288
https://doi.org/10.1109/2944.983288
Publikováno v:
Applied Physics B: Lasers and Optics. 70:151-154
We report on imaging through solid scattering media with photorefractive holography using sources of low temporal and spatial coherence. Holograms were recorded through samples of moderate thickness by using low-cost light-emitting diodes. The reduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2857c11f4ccf7563b3f861f1bf0b928b
https://doi.org/10.1007/s003400050023
https://doi.org/10.1007/s003400050023
Autor:
David D. Nolte, M. R. Melloch, Richard Jones, S.C.W. Hyde, Paul M. W. French, M. Tziraki, N.P. Barry, K. M. Kwolek, J. C. Dainty
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 4:360-369
We discuss a real-time coherence gated three-dimensional (3-D) imaging system, based on photorefractive holography with ultrashort pulses, which has been applied to imaging through turbid media with a view to developing biomedical instrumentation. Su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::264dd2acc9eb8f78a239162032775420
https://doi.org/10.1109/2944.686743
https://doi.org/10.1109/2944.686743
Publikováno v:
Applied Physics Letters. 75:1363-1365
We demonstrate an application of light-emitting diodes to photorefractive holography with multiple-quantum-well devices. Holograms corresponding to three-dimensional images with a depth resolution of less than 10 μm were recorded, with image acquisi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::656cbc0971eeb5bfd4b0c2eb8cebd84c
https://doi.org/10.1063/1.124694
https://doi.org/10.1063/1.124694
Autor:
Srdjan Saso, Maya Al-Memar, Jason Smith, Neil T. Clancy, M. Tziraki, T. Bourne, M Y Thum, Daniel S. Elson, B. Jones, Timothy Bracewell-Milnes
Publikováno v:
Ultrasound in Obstetrics & Gynecology. 46:53-53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b28c03cdd9feb826c602dff37639457
https://doi.org/10.1002/uog.15106
https://doi.org/10.1002/uog.15106
Autor:
Y. Gu, Jan Siegel, Paul M. W. French, M. Tziraki, David D. Nolte, Michael R. Melloch, Z. Ansari, Christopher Dunsby, D. Parsons-Karavassilis
Publikováno v:
SPIE Proceedings.
When imaging through scattering media it is easiest to visualise a pulse propagating through the material. As the light propagates it is scattered away from its original trajectory and it becomes diffuse, both spatially and temporally. It is importan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d101e6918d55e71eac58691cdcad2ec1
https://doi.org/10.1117/12.469019
https://doi.org/10.1117/12.469019
Autor:
Paul M. W. French, Christopher Dunsby, Y. Gu, W. Headley, Z. Ansari, David D. Nolte, Michael R. Melloch, M. Tziraki
Publikováno v:
Biomedical Topical Meeting.
Wide-field low coherence photorefractive holography has the potential to acquire depth-resolved images at up to 1000 frames/second, including through scattering media. We have applied it to microscopy using a diverse range of light sources.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54ead2a2a0f88cb254333bded28ca770
https://doi.org/10.1364/bio.2002.sug3
https://doi.org/10.1364/bio.2002.sug3
Autor:
Y. Gu, Z. Ansari, J. Siegel, C. Dunsby, M. Itoh, D. Parsons-Karavassilis, M. Tziraki, R. Jones, K. Dowling, P. M. W. French, D.D. Nolte, W. Headley, M.R. Melloch
Publikováno v:
Hybrid and Novel Imaging and New Optical Instrumentation for Biomedical Applications.
We report high speed (~ 470 frames/s) 3-D imaging using photorefractive holography with sources of diverse temporal and spatial coherence and discuss design considerations for real-world high bit-rate imaging systems. We also propose a new real-time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b13090cae839df269b9bb6062a04b05b
https://doi.org/10.1364/ecbo.2001.4434_28
https://doi.org/10.1364/ecbo.2001.4434_28