Dr. Nikiforos Kollias Profile

Dr. Nikiforos Kollias

Deceased

SPIE Involvement:

Author | Editor

Publications (22)

Proceedings Article | 14 March 2018 Presentation

In vivo characterizations of optical properties of human skin responses to visible light by diffuse reflectance spectroscopy (Conference Presentation)

Indermeet Kohli, Tasneem Mohammad, Cynthia Nicholson, Nikiforos Kollias, Henry Lim, Iltefat Hamzavi

Proceedings Volume 10467, 104670V (2018) https://doi.org/10.1117/12.2290175

KEYWORDS: Skin, Visible radiation, Absorbance, Diffuse reflectance spectroscopy, Optical filters, In vivo imaging, Optical properties, Solar radiation, Skin cancer, Ultraviolet radiation

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Proceedings Article | 27 April 2016 Presentation

Fluorescence excitation-emission matrix spectroscopy of vitiligo skin in vivo (Conference Presentation)

Jianhua Zhao, Vincent Richer, Mohammed Al Jasser, Soodabeh Zandi, Nikiforos Kollias, Sunil Kalia, Haishan Zeng, Harvey Lui

Proceedings Volume 9689, 968911 (2016) https://doi.org/10.1117/12.2214210

KEYWORDS: Luminescence, Skin, Fluorescence spectroscopy, Spectroscopy, In vivo imaging, Absorption, Tissue optics, Molecules, Photons, Inflammation

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Proceedings Article | 9 February 2012 Paper

Assessing human skin with diffuse reflectance spectroscopy and colorimetry

InSeok Seo, Yang Liu, Paulo Bargo, Nikiforos Kollias

Proceedings Volume 8207, 82070P (2012) https://doi.org/10.1117/12.910206

KEYWORDS: Skin, Colorimetry, Chromophores, Diffuse reflectance spectroscopy, Visualization, Eye, Reflectivity, Roads, Human subjects, Color vision

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Proceedings Article | 18 February 2011 Paper

Comparison of skin responses from macroscopic and microscopic UV challenges

InSeok Seo, Paulo Bargo, Melissa Chu, Eduardo Ruvolo, Nikiforos Kollias

Proceedings Volume 7883, 78830G (2011) https://doi.org/10.1117/12.879183

KEYWORDS: Skin, Ultraviolet radiation, Liquids, Waveguides, Optical fibers, Confocal microscopy, Microscopes, Visualization, Reflectivity, Video

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Proceedings Article | 18 February 2011 Paper

In vivo investigation of the evolution of skin barrier repair after mechanical injury

Steven Walston, Melissa Chu, Inseok Seo, Paulo Bargo, Nikiforos Kollias

Proceedings Volume 7883, 78830S (2011) https://doi.org/10.1117/12.879182

KEYWORDS: Skin, Confocal microscopy, Injuries, Luminescence, In vivo imaging, Confocal fluorescent microscopy, Reflectivity, Imaging systems, Digital cameras, Polarization

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SPIE Journal Paper | 1 November 2010 Open Access

Simultaneous assessment of pulsating and total blood in inflammatory skin lesions using functional diffuse reflectance spectroscopy in the visible range

InSeok Seo, Paulo Bargo, Nikiforos Kollias

JBO, Vol. 15, Issue 06, 060507, (November 2010) https://doi.org/10.1117/12.10.1117/1.3524191

KEYWORDS: Blood, Skin, Ultraviolet radiation, Heart, Absorbance, Diffuse reflectance spectroscopy, Visible radiation, Blood circulation, Tissue optics, Reflectivity

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Proceedings Article | 2 March 2010 Paper

In vivo comparative documentation of skin hydration by confocal Raman microscopy, SkinSensor, Skicon, and NovaMeter

Guojin Zhang, Aline Papillon, Eduardo Ruvolo, Paulo Bargo, Nikiforos Kollias

Proceedings Volume 7548, 75480M (2010) https://doi.org/10.1117/12.848215

KEYWORDS: Skin, Raman spectroscopy, Confocal microscopy, Microscopy, In vivo imaging, Light scattering, Diagnostics, Microscopes, Sensors, Optical testing

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Proceedings Article | 2 March 2010 Paper

Use of spectral imaging for documentation of skin parameters in face lift procedure

Eduardo Ruvolo, Paulo Bargo, Tim Dietz, Robin Scamuffa, Kurt Shoemaker, Barry DiBernardo, Nikiforos Kollias

Proceedings Volume 7548, 75480A (2010) https://doi.org/10.1117/12.848213

KEYWORDS: Chromophores, Skin, Surgery, Absorption, Calibration, Multispectral imaging, Imaging systems, Absorbance, Imaging spectroscopy, Scattering

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Proceedings Article | 2 March 2010 Paper

Imaging inflammatory acne: lesion detection and tracking

Gabriela Cula, Paulo Bargo, Nikiforos Kollias

Proceedings Volume 7548, 75480I (2010) https://doi.org/10.1117/12.848214

KEYWORDS: Skin, Polarizers, Sensors, Light sources, Image analysis, Inflammation, Optical inspection, Imaging systems, Cameras, Light

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Proceedings Article | 2 March 2010 Paper

Assessment of microcirculation frequency components through functional diffuse reflectance spectroscopy: a promising tool for noninvasive skin diagnosis

Paulo Bargo, InSeok Seo, Nikiforos Kollias

Proceedings Volume 7548, 75480O (2010) https://doi.org/10.1117/12.848217

KEYWORDS: Skin, Blood circulation, Absorbance, Blood, Diffuse reflectance spectroscopy, Reflectivity, Tissues, Absorption, Light sources, Visible radiation

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Proceedings Article | 23 February 2009 Paper

Quantitative assessment of wound-healing process as a response to laser-induced micro-injuries

Yang Liu, Paulo Bargo, Nikiforos Kollias

Proceedings Volume 7161, 71610W (2009) https://doi.org/10.1117/12.811917

KEYWORDS: Skin, Confocal microscopy, Wound healing, Laser therapeutics, Reflectivity, Microscopes, Video microscopy, Collagen, Biopsy, Infrared radiation

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Proceedings Article | 19 February 2009 Paper

Assessing facial wrinkles: automatic detection and quantification

Gabriela Cula, Paulo Bargo, Nikiforos Kollias

Proceedings Volume 7161, 71610J (2009) https://doi.org/10.1117/12.811608

KEYWORDS: Image enhancement, Skin, Image filtering, Image processing, Reliability, Algorithm development, In vivo imaging, Image analysis, Detection and tracking algorithms, Digital filtering

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Proceedings Article | 19 February 2009 Paper

Fluorescence spectroscopy for endogenous porphyrins in human facial skin

I. Seo, S. H. Tseng, G. Cula, P. Bargo, N. Kollias

Proceedings Volume 7161, 716103 (2009) https://doi.org/10.1117/12.811913

KEYWORDS: Luminescence, Skin, Fluorescence spectroscopy, Diffuse reflectance spectroscopy, Optical filters, Bacteria, Xenon, Lamps, Light sources, Blood

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SPIE Journal Paper | 1 September 2007 Open Access

In vivo documentation of cutaneous inflammation using spectral imaging

Georgios Stamatas, Nikiforos Kollias

JBO, Vol. 12, Issue 05, 051603, (September 2007) https://doi.org/10.1117/12.10.1117/1.2798704

KEYWORDS: Skin, Inflammation, Imaging spectroscopy, Absorption, Chromophores, Tissues, In vivo imaging, Near infrared, Visualization, Visible radiation

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Proceedings Article | 22 February 2006 Paper

Noninvasive quantitative documentation of cutaneous inflammation in vivo using spectral imaging

Georgios Stamatas, Nikiforos Kollias

Proceedings Volume 6078, 60780P (2006) https://doi.org/10.1117/12.647078

KEYWORDS: Skin, Imaging spectroscopy, Inflammation, Absorption, Visible radiation, Near infrared, Scattering, Chromophores, In vivo imaging, Tissues

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SPIE Journal Paper | 1 March 2004 Open Access

Blood stasis contributions to the perception of skin pigmentation

Georgios Stamatas, Nikiforos Kollias

JBO, Vol. 9, Issue 02, (March 2004) https://doi.org/10.1117/12.10.1117/1.1647545

KEYWORDS: Skin, Blood, Absorption, Chromophores, Diffuse reflectance spectroscopy, Visualization, Scattering, Ultraviolet radiation, Optical fibers, Tissues

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Proceedings Article | 2 July 2003 Paper

Hyperspectral image acquisition and analysis of skin

Georgios Stamatas, Costas Balas, Nikiforos Kollias

Proceedings Volume 4959, (2003) https://doi.org/10.1117/12.479491

KEYWORDS: Skin, Hyperspectral imaging, Chromophores, Absorption, Light scattering, Image acquisition, Image analysis, Blood, Image filtering, Algorithm development

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Proceedings Article | 1 May 2002 Paper

Visual versus spectroscopic analysis of skin color reactions: separation of contributing chromophores

Georgios Stamatas, Nikiforos Kollias

Proceedings Volume 4613, (2002) https://doi.org/10.1117/12.465258

KEYWORDS: Skin, Visualization, Spectroscopy, Chromophores, Diffuse reflectance spectroscopy, Absorption, Visual analytics, Optical fibers, Molecules, Visible radiation

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Proceedings Article | 4 May 2001 Paper

Functional reflectance spectroscopy of skin

Nikiforos Kollias, Robert Gillies

Proceedings Volume 4241, (2001) https://doi.org/10.1117/12.431521

KEYWORDS: Skin, Scattering, Light scattering, Chromophores, Absorbance, Absorption, Mie scattering, Visible radiation, Superposition, Reflectance spectroscopy

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Proceedings Article | 22 June 1999 Paper

UV radiation at the fluorescence excitation maxima produces significant changes in the fluorescence of skin

Nikiforos Kollias, W. Tian, George Zonios, Lorenzo Brancaleon, Robert Gillies

Proceedings Volume 3590, (1999) https://doi.org/10.1117/12.350994

KEYWORDS: Luminescence, Skin, Ultraviolet radiation, Collagen, Chromophores, Monochromators, Quantum efficiency, Absorption, Proteins, Photomedicine

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Proceedings Article | 1 July 1993 Paper

Photodynamic therapy of malignant skin tumors with Benzoporphyrin derivative-monoacid ring A (BPD-MA): preliminary observations

Harvey Lui, Luciann Hruza, Nikiforos Kollias, Joanne Wimberly, Vincent Salvatori, R. Rox Anderson

Proceedings Volume 1876, (1993) https://doi.org/10.1117/12.147033

KEYWORDS: Tumors, Skin, Photodynamic therapy, Sodium, Visible radiation, Optical filters, Logic, Clinical trials, Argon ion lasers, Tunable lasers

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Proceedings Article | 18 June 1993 Paper

Monitoring of benzoporphyrin derivative monoacid ring A (BPD-MA) in skin tumors by fluorescence during photodynamic therapy: preliminary observations

Nikiforos Kollias, Harvey Lui, Joanne Wimberly, R. Rox Anderson

Proceedings Volume 1881, (1993) https://doi.org/10.1117/12.146329

KEYWORDS: Luminescence, Tumors, Skin, Photodynamic therapy, Calibration, Fluorescence spectroscopy, Signal detection, Laser scattering, Scattering, Tissues

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Showing 5 of 22 publications

Proceedings Volume Editor (20)

SPIE Conference Volume | 1 March 2017

Photonics in Dermatology and Plastic Surgery

SPIE Conference Volume | 18 May 2016

Photonic Therapeutics and Diagnostics XII

SPIE Conference Volume | 24 March 2015

Photonic Therapeutics and Diagnostics XI

SPIE Conference Volume | 18 March 2014

Photonic Therapeutics and Diagnostics X

SPIE Conference Volume | 15 March 2013

Photonic Therapeutics and Diagnostics IX

Showing 5 of 20 publications

Conference Committee Involvement (20)