Dr. Zbignevs Marcinkevics Profile

Dr. Zbignevs Marcinkevics

Principal Investigator at Univ of Latvia

SPIE Involvement:

Author

Publications (25)

SPIE Journal Paper | 14 November 2023 Open Access

Incremental residual polarization caused by aging in human skin

Viktor Dremin, Elena Zharkikh, Ivan Lopushenko, Zbignevs Marcinkevics, Alexander Bykov, Igor Meglinski

JBO, Vol. 29, Issue 05, 052912, (November 2023) https://doi.org/10.1117/12.10.1117/1.JBO.29.5.052912

KEYWORDS: Polarization, Skin, Scattering, Tissues, Absorption, Light scattering, Collagen, Polarized light, Blood, Optical properties

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Proceedings Article | 28 October 2020 Paper

Imaging photoplethysmography for evaluation of cutaneous sensory nerve fiber function

Z. Marcinkevics, A. Aglinska, U. Rubins, A. Mikale, A. Grabovskis

Proceedings Volume 11585, 1158507 (2020) https://doi.org/10.1117/12.2581705

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Proceedings Article | 28 October 2020 Paper

The assessment of gingivitis using remote photoplethysmography

Z. Marcinkevics, K. Ilango, P. Balode, U. Rubins, A. Grabovskis

Proceedings Volume 11585, 1158508 (2020) https://doi.org/10.1117/12.2581969

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Proceedings Article | 27 April 2020 Presentation

Polarization-sensitive hyperspectral imaging of human skin: From system design to clinical validation (Conference Presentation)

Alexander Bykov, Viktor Dremin, Zbignevs Marcinkevics, Andris Grabovskis, Evgenii Zherebtsov, Alexey Popov, Igor Meglinski, Alexander Doronin

Proceedings Volume 11389, 1138914 (2020) https://doi.org/10.1117/12.2556842

KEYWORDS: Skin, Hyperspectral imaging, Imaging systems, Reflectivity, Polarization, Cameras, Fiber optic illuminators, Polarizers, Blood, Algorithm development

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Proceedings Article | 11 March 2020 Paper

LED-bed therapy of cardiovascular disorders: a volunteer study

J. Spigulis, Z. Marcinkevics, Dz. Briljonoks, H. Kronberga

Proceedings Volume 11221, 112210R (2020) https://doi.org/10.1117/12.2560630

KEYWORDS: Light emitting diodes, Heart, Blood pressure, Body temperature, Temperature metrology, Cardiovascular system, Natural surfaces, Cardiovascular disorders, Near infrared, Tissues

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Proceedings Article | 9 September 2019 Presentation + Paper

Hybrid optical prototype for sepsis bedside diagnostics

M. Lācis, S. Kazune, Z. Marcinkevics, U. Rubins, A. Grabovskis

Proceedings Volume 11105, 111050P (2019) https://doi.org/10.1117/12.2529230

KEYWORDS: Skin, Diagnostics, Prototyping, Cameras, Thermography, Oxygen, Control systems, Blood, Light sources, Hybrid optics

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Proceedings Article | 22 July 2019 Paper

Assessment of age-related skin changes using hyperspectral polarization imaging

Alexander Bykov, Alexey Popov, Andris Grabovskis, Viktor Dremin, Evgeny Zherebtsov, Igor Meglinski, Zbignevs Marcinkevics

Proceedings Volume 11079, 1107918 (2019) https://doi.org/10.1117/12.2526359

KEYWORDS: Polarization, Skin, Hyperspectral imaging, Collagen, Tissues, Medicine, Proteins, Biomedical optics, In vivo imaging, Biological research

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Proceedings Article | 19 July 2019 Open Access

Remote photoplethysmography for assessment of oral mucosa

U. Rubins, Z. Marcinkevics, R. Muckle, I. Henkuzena, A. Roze, A. Grabovskis

Proceedings Volume 11073, 110731F (2019) https://doi.org/10.1117/12.2526979

KEYWORDS: Photoplethysmography, Video, Cameras, Light sources, Blood, Tissue optics, Video processing, Tissues, Modulation

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Proceedings Article | 19 July 2019 Paper

Remote photoplethysmography for skin perfusion monitoring using narrowband illumination

Z. Marcinkevics, U. Rubins, A. Grabovskis, A. Aglinska, A. Caica

Proceedings Volume 11073, 110730D (2019) https://doi.org/10.1117/12.2527221

KEYWORDS: Skin, Cameras, Photoplethysmography, Light sources, Doppler effect, Optical filters, Tissue optics, Video, Blood, Light emitting diodes

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Proceedings Article | 20 February 2019 Presentation + Paper

Imaging photoplethysmography for assessment of chronic pain patients

U. Rubins, Z. Marcinkevics, I. Logina, A. Grabovskis, E. Kviesis-Kipge

Proceedings Volume 10885, 1088508 (2019) https://doi.org/10.1117/12.2508393

KEYWORDS: Skin, Photoplethysmography, Video, Nerve, Cameras, Fiber optic illuminators, Axons, Doppler effect, Diagnostics, Light emitting diodes

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Proceedings Article | 17 May 2018 Paper

Snapshot hyperspectral system for noninvasive skin blood oxygen saturation monitoring

U. Rubins, Z. Marcinkevics, J. Cimurs, A. Grabovskis, E. Kviesis-Kipge

Proceedings Volume 10685, 106853Y (2018) https://doi.org/10.1117/12.2306985

KEYWORDS: Skin, Cameras, Oxygen, Light emitting diodes, Prototyping, RGB color model, Blood, Blood oxygen saturation, Tissue optics, Light scattering

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Proceedings Article | 17 May 2018 Open Access

Hyperspectral evaluation of skin blood oxygen saturation at baseline and during arterial occlusion

U. Rubins, A. Grabovskis, J. Cimurs, Z. Marcinkevics, A. Caica

Proceedings Volume 10685, 106851A (2018) https://doi.org/10.1117/12.2306131

KEYWORDS: Skin, Blood, Capillaries, Tissues, Oxygen, Blood oxygen saturation, Statistical analysis, Hyperspectral imaging, Diagnostics, Scattering

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Proceedings Article | 7 December 2017 Paper

Evaluation of nitroglycerin effect on remote photoplethysmogram waveform acquired at green and near infra-red illumination

Z. Marcinkevics, U. Rubins, A. Caica, A. Grabovskis

Proceedings Volume 10592, 105920E (2017) https://doi.org/10.1117/12.2297385

KEYWORDS: Hemodynamics, Skin, Heart, Resistance, Video, Video processing, Signal processing, Signal to noise ratio, Photoplethysmography, Infrared imaging

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Proceedings Article | 7 December 2017 Paper

Remote photoplethysmography system for unsupervised monitoring regional anesthesia effectiveness

Z. Marcinkevics, M. Lange, U. Rubins, A. Miscuks

Proceedings Volume 10592, 1059203 (2017) https://doi.org/10.1117/12.2297158

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Proceedings Article | 28 July 2017 Paper

Comparison of remote photoplethysmography signals acquired by ultra-low noise camera and conventional camera during physiological tests

Z. Marcinkevics, U. Rubins

Proceedings Volume 10411, 104110T (2017) https://doi.org/10.1117/12.2284657

KEYWORDS: Cameras, Skin, Blood

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Proceedings Article | 15 February 2017 Paper

Novel hybrid technology for early diagnostics of sepsis

Inga Saknite, Andris Grabovskis, Uldis Rubins, Zbignevs Marcinkevics, Edgars Kviesis-Kipge, Sigita Kazune, Janis Spigulis, Karina Volceka

Proceedings Volume 10057, 100570F (2017) https://doi.org/10.1117/12.2253597

KEYWORDS: Diagnostics, Tissues, Hyperspectral imaging, Oxygen, Thermography, Cameras, Imaging spectroscopy, Blood circulation, Visualization, Skin, Image segmentation, RGB color model, Blood

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SPIE Journal Paper | 30 March 2016 Open Access

Imaging photoplethysmography for clinical assessment of cutaneous microcirculation at two different depths

Zbignevs Marcinkevics, Uldis Rubins, Janis Zaharans, Aleksejs Miščuks, Evelina Urtane, Liga Ozolina-Moll

JBO, Vol. 21, Issue 03, 035005, (March 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.3.035005

KEYWORDS: Photoplethysmography, Skin, Imaging systems, Video, Light sources, Cameras, Blood, Capillaries, In vivo imaging, Software development

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SPIE Journal Paper | 26 March 2015 Open Access

Errata: Two-stage multi-Gaussian fitting of conduit artery photoplethysmography waveform during induced unilateral hemodynamic events

Andris Grabovskis, Zbignevs Marcinkevics, Uldis Rubins, Juris Imants Aivars

JBO, Vol. 20, Issue 03, 039801, (March 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.3.039801

KEYWORDS: Arteries, Hemodynamics, Biomedical optics, Atomic, molecular, and optical physics, Spectroscopy, Biology, Physiology, Photoplethysmography

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SPIE Journal Paper | 9 March 2015 Open Access

Two-stage multi-Gaussian fitting of conduit artery photoplethysmography waveform during induced unilateral hemodynamic events

Andris Grabovskis, Zbignevs Marcinkevics, Uldis Rubins, Juris Imants Aivars

JBO, Vol. 20, Issue 03, 035001, (March 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.3.035001

KEYWORDS: Arteries, Hemodynamics, Blood circulation, Resistance, Resolution enhancement technologies, Statistical analysis, Amplifiers, Ultrasonography, Diagnostics, Photoplethysmography

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Proceedings Article | 8 May 2014 Paper

Wearable photoplethysmography device prototype for wireless cardiovascular monitoring

O. Rubenis, A. Grabovskis, E. Kviesis-Kipge, Z. Marcinkevics, V. Mecnika

Proceedings Volume 9129, 91292I (2014) https://doi.org/10.1117/12.2051330

KEYWORDS: Sensors, Photodiodes, Prototyping, In vivo imaging, Signal to noise ratio, Light emitting diodes, Capacitors, Electrocardiography, Interference (communication), Photoplethysmography

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Proceedings Article | 18 November 2013 Paper

Assessment of conduit artery vasomotion using photoplethysmography

Karlis Kanders, Andris Grabovskis, Zbignevs Marcinkevics, Juris Imants Aivars

Proceedings Volume 9032, 90320L (2013) https://doi.org/10.1117/12.2044705

KEYWORDS: Arteries, Sensors, Blood vessels, Software development, Electrocardiography, Blood, Optical testing, Autoregressive models, Capillaries, Photoplethysmography

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Proceedings Article | 18 November 2013 Paper

Evaluation of a multispectral diffuse optical spectroscopy device for assessment of cardiometabolic risk related alterations of body composition

Z. Marcinkevics, K. Volceka, L. Ozolina-Moll, J. Zaharans

Proceedings Volume 9032, 903208 (2013) https://doi.org/10.1117/12.2044685

KEYWORDS: Light emitting diodes, Tissue optics, Sensors, Tissues, Prototyping, Abdomen, Ultrasonography, Light, Optical testing, Photodetectors

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SPIE Journal Paper | 1 February 2013 Open Access

Effect of probe contact pressure on the photoplethysmographic assessment of conduit artery stiffness

Andris Grabovskis, Zbignevs Marcinkevics, Uldis Rubins, Edgars Kviesis-Kipge

JBO, Vol. 18, Issue 02, 027004, (February 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.2.027004

KEYWORDS: Arteries, Biomedical optics, Transducers, Ultrasonography, Reflectivity, Sensors, Standards development, Skin, Linear filtering, Photoplethysmography

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Proceedings Article | 8 May 2012 Paper

Photoplethysmography system for blood pulsation detection in unloaded artery conditions

O. Rubenis, U. Rubins, A. Grabovskis, Z. Marcinkevics, V. Lusa

Proceedings Volume 8427, 84270L (2012) https://doi.org/10.1117/12.922649

KEYWORDS: Arteries, Blood, Tissues, Signal processing, Heart, Amplifiers, Skin, Sensors, Light emitting diodes, Photoplethysmography

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Proceedings Article | 16 June 2011 Paper

Usability of photoplethysmography method in estimation of conduit artery stiffness

V. Lusa, M. Majauska, Z. Marcinkevics, J. Aivars, A. Grabovskis, A. Kalinina, Z. Lukstina

Proceedings Volume 8090, 80900X (2011) https://doi.org/10.1117/12.889801

KEYWORDS: Arteries, Sensors, Signal processing, Ultrasonography, Blood, Video processing, Diagnostics, Blood pressure, Photodiodes, Photoplethysmography

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Showing 5 of 25 publications

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