Dr. Lioudmila Tchvialeva Profile

Dr. Lioudmila Tchvialeva

at BC Cancer Agency Research Ctr

SPIE Involvement:

Author

Publications (22)

Proceedings Article | 15 March 2023 Presentation

Development of a Stokes vector polarization speckle system for in vivo clinical applications (Conference Presentation)

Daniel Louie, Lioudmila Tchvialeva, Tim Lee

Proceedings Volume PC12382, PC123820D (2023) https://doi.org/10.1117/12.2647636

KEYWORDS: Polarization, Speckle, In vivo imaging, Polarimetry, Backscatter, Speckle pattern, Wave plates, Systems modeling, Stochastic processes, Motion measurement

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Proceedings Article | 21 December 2021 Paper

Polarization-based skin cancer detection in vivo

Lioudmila Tchvialeva, Daniel Louie, Yuheng Wang, Sunil Kalia, Harvey Lui, Tim Lee

Proceedings Volume 12126, 121262P (2021) https://doi.org/10.1117/12.2621081

KEYWORDS: Polarization, Skin, Skin cancer, Cancer, Polarimetry, In vivo imaging, Diagnostics, Optical properties, Photodiodes, Melanoma

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SPIE Journal Paper | 8 March 2021 Open Access

Constructing a portable optical polarimetry probe for in-vivo skin cancer detection

Daniel Louie, Lioudmila Tchvialeva, Sunil Kalia, Harvey Lui, Tim Lee

JBO, Vol. 26, Issue 03, 035001, (March 2021) https://doi.org/10.1117/12.10.1117/1.JBO.26.3.035001

KEYWORDS: Polarization, Speckle, Polarimetry, Skin cancer, Tissue optics, Sensors, Skin, Semiconductor lasers, In vivo imaging, Photodiodes

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Proceedings Article | 19 February 2020 Paper

Polarization sensitive optical coherence tomography for assessing skin roughness

Xin Zhou, Daniel Louie, Sina Maloufi, Lin Huang, Qihao Liu, Lioudmila Tchvialeva, Tim Lee, Shuo Tang

Proceedings Volume 11211, 112110A (2020) https://doi.org/10.1117/12.2547139

KEYWORDS: Skin, Polarization, Optical coherence tomography, Melanoma, Natural surfaces, Skin cancer, Surface roughness, Tissues, Scattering, Absorption

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Proceedings Article | 26 February 2019 Presentation + Paper

One-shot Stokes polarimetry for low-cost skin cancer detection

Daniel Louie, Lioudmila Tchvialeva, Sunil Kalia, Harvey Lui, Tim Lee

Proceedings Volume 10869, 1086904 (2019) https://doi.org/10.1117/12.2509268

KEYWORDS: Polarization, Skin cancer, Speckle, Polarimetry, Semiconductor lasers, Optical filters, Sensors, Photodiodes, Skin, Cancer

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SPIE Journal Paper | 15 December 2018 Open Access

Degree of optical polarization as a tool for detecting melanoma: proof of principle

Daniel Louie, Jamie Phillips, Lioudmila Tchvialeva, Sunil Kalia, Harvey Lui, Wei Wang, Tim K. Lee

JBO, Vol. 23, Issue 12, 125004, (December 2018) https://doi.org/10.1117/12.10.1117/1.JBO.23.12.125004

KEYWORDS: Skin, Polarization, Melanoma, Polarimetry, In vivo imaging, Surface roughness, Skin cancer, Scattering, Photodiodes, Cancer

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Proceedings Article | 14 February 2018 Paper

Stokes polarimetry probe for skin lesion evaluation: preliminary results

Daniel Louie, Lioudmilla Tchvialeva, Sunil Kalia, Harvey Lui, Tim Lee

Proceedings Volume 10467, 104670X (2018) https://doi.org/10.1117/12.2288761

KEYWORDS: Polarization, Skin, Polarimetry, Speckle, Sensors, Clinical trials, Surface roughness, In vivo imaging, Melanoma, Skin cancer

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Proceedings Article | 18 January 2018 Paper

Applications of polarization speckle in skin cancer detection and monitoring

Tim Lee, Lioudmila Tchvialeva, Jamie Phillips, Daniel Louie, Jianhua Zhao, Wei Wang, Harvey Lui, Sunil Kalia

Proceedings Volume 10612, 106121B (2018) https://doi.org/10.1117/12.2305383

KEYWORDS: Polarization, Speckle, Skin, Skin cancer, Cancer, Diffuse reflectance spectroscopy, Melanoma, Reflectivity, Speckle pattern, Scattering

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Proceedings Article | 19 April 2017 Presentation

Skin microrelief as a diagnostic tool (Conference Presentation)

Lioudmila Tchvialeva, Jamie Phillips, Haishan Zeng, David McLean, Harvey Lui, Tim Lee

Proceedings Volume 10037, 1003706 (2017) https://doi.org/10.1117/12.2249800

KEYWORDS: Cancer, Skin, Speckle, Melanoma, Diagnostics, Skin cancer, Calibration, Surface roughness, Silicon, Laser development

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Proceedings Article | 6 February 2017 Presentation + Paper

Findings toward the miniaturization of a laser speckle contrast device for skin roughness measurements

Daniel Louie, Lioudmilla Tchvialeva, Haishan Zeng, Tim Lee

Proceedings Volume 10037, 100370J (2017) https://doi.org/10.1117/12.2253227

KEYWORDS: Skin, Speckle, Semiconductor lasers, Polarization, In vivo imaging, CCD cameras, Thermal effects, Medical devices, Calibration, Cameras, Backscatter, Scattering, Skin cancer

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SPIE Journal Paper | 11 July 2016 Open Access

Backscattering of linearly polarized light from turbid tissue-like scattering medium with rough surface

Alexander Doronin, Lioudmila Tchvialeva, Igor Markhvida, Tim Lee, Igor Meglinski

JBO, Vol. 21, Issue 07, 071117, (July 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.7.071117

KEYWORDS: Light scattering, Scattering, Natural surfaces, Tissue optics, Surface roughness, Backscatter, Reflection, Photons, Polarization, Phase shifts

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Proceedings Article | 4 March 2014 Paper

Enhanced diagnostic of skin conditions by polarized laser speckles: phantom studies and computer modeling

Lioudmila Tchvialeva, Tim Lee, Igor Markhvida, Haishan Zeng, Alexander Doronin, Igor Meglinski

Proceedings Volume 8926, 89260X (2014) https://doi.org/10.1117/12.2040192

KEYWORDS: Skin, Speckle, Polarization, Light scattering, Scattering, Speckle pattern, Skin cancer, Optical properties, Monte Carlo methods, Diagnostics

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Proceedings Article | 21 February 2013 Paper

Depolarization of light by rough surface of scattering phantoms

Lioudmila Tchvialeva, Igor Markhvida, Tim Lee, Alexander Doronin, Igor Meglinski

Proceedings Volume 8592, 859217 (2013) https://doi.org/10.1117/12.2002868

KEYWORDS: Scattering, Light scattering, Polarization, Monte Carlo methods, Skin, Tissues, Surface roughness, Natural surfaces, Speckle pattern, Speckle

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SPIE Journal Paper | 12 December 2012 Open Access

Polarization speckle imaging as a potential technique for in vivo skin cancer detection

Lioudmila Tchvialeva, Gurbir Dhadwal, Harvey Lui, Sunil Kalia, Haishan Zeng, David McLean, Tim Lee

JBO, Vol. 18, Issue 06, 061211, (December 2012) https://doi.org/10.1117/12.10.1117/1.JBO.18.6.061211

KEYWORDS: Polarization, Speckle pattern, Skin, Skin cancer, Melanoma, In vivo imaging, Speckle, Speckle imaging, Diagnostics, Raman spectroscopy

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Proceedings Article | 2 February 2012 Paper

Eliminating the effect of bulk scattering when measuring skin surface roughness using speckle contrast: a skin phantom study

Lioudmila Tchvialeva, Igor Markhvida, David McLean, Harvey Lui, Haishan Zeng, Tim Lee

Proceedings Volume 8230, 823004 (2012) https://doi.org/10.1117/12.912255

KEYWORDS: Skin, Scattering, Speckle, Surface roughness, Light scattering, Polarization, Calibration, Signal attenuation, Optical properties, Speckle pattern

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Proceedings Article | 23 November 2011 Paper

Applying laser speckle images to skin science: skin lesion differentiation by polarization

Tim Lee, Lioudmila Tchvialeva, Gurbir Dhadwal, Bahman Sotoodian, Sunil Kalai, Haishan Zeng, Harvey Lui, David McLean

Proceedings Volume 8338, 83381E (2011) https://doi.org/10.1117/12.919976

KEYWORDS: Skin, Polarization, Skin cancer, Speckle, Melanoma, In vivo imaging, Diagnostics, Cancer, Surface roughness, Light sources

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Proceedings Article | 16 June 2011 Paper

Laser speckle contrast vs. depolarization: a solid skin phantom study

Lioudmila Tchvialeva, Gurbir Dhadwal, Diana Diao, Harvey Lui, David McLean, Tim Lee

Proceedings Volume 8090, 809018 (2011) https://doi.org/10.1117/12.890050

KEYWORDS: Speckle, Polarization, Scattering, Skin, Light scattering, Solids, Surface roughness, Tissue optics, Laser scattering, Geometrical optics

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Proceedings Article | 14 September 2010 Paper

Towards automatic detection of malignant melanoma by laser speckle

T. Lee, L. Tchvialeva, H. Lui, H. Zeng, D. McLean

Proceedings Volume 7387, 73871D (2010) https://doi.org/10.1117/12.870692

KEYWORDS: Speckle, Skin, Tissue optics, Melanoma, Light scattering, Scattering, Surface roughness, Skin cancer, Polarization, Speckle pattern

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Proceedings Article | 14 September 2010 Paper

Aspects of speckle contrast metrology

L. Tchvialeva, I. Markhvida, T. Lee

Proceedings Volume 7387, 73871U (2010) https://doi.org/10.1117/12.870674

KEYWORDS: Speckle, Cameras, Speckle pattern, Metrology, Tissue optics, Light sources, Error analysis, Metals, CCD cameras, Statistical analysis

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Proceedings Article | 19 February 2009 Paper

Optical discrimination of surface reflection from volume backscattering in speckle contrast for skin roughness measurements

Lioudmila Tchvialeva, Haishan Zeng, Igor Markhvida, Gurbir Dhadwal, Lianne McLean, David McLean, Harvey Lui, Tim Lee

Proceedings Volume 7161, 71610I (2009) https://doi.org/10.1117/12.811916

KEYWORDS: Speckle, Skin, Optical filters, Light scattering, Polarization, Tissue optics, Scattering, Speckle pattern, Reflection, Laser scattering

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SPIE Journal Paper | 1 July 2008 Open Access

Using a zone model to incorporate the influence of geometry on polychromatic speckle contrast

Lioudmila Tchvialeva, Tim Lee, Igor Markhvida, David McLean, Harvey Lui, Haishan Zeng

OE, Vol. 47, Issue 07, 074201, (July 2008) https://doi.org/10.1117/12.10.1117/1.2955797

KEYWORDS: Speckle, Speckle pattern, Light sources, Geometrical optics, Coherence (optics), Diffusers, Surface roughness, Optical engineering, Cancer, Skin cancer

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Proceedings Article | 15 September 2006 Paper

Geometry influence on polychromatic speckle contrast

Lioudmila Tchvialeva, Tim Lee, Igor Markhvida, David McLean, Harvey Lui, Haishan Zeng

Proceedings Volume 6341, 63411V (2006) https://doi.org/10.1117/12.695470

KEYWORDS: Speckle pattern, Speckle, Light sources, Diffusers, Temporal coherence, Biomedical optics, Coherence (optics), Diffraction, Cancer, Medical research

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Showing 5 of 22 publications

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