Dr. Gregory H. Bearman Profile

Dr. Gregory H. Bearman

Consultant

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 10 June 2024 Poster

Poster

Fish fillet species identification and quality assessment using multi-mode spectroscopy and machine learning

Mitchell Sueker, Nicholas MacKinnon, Gregory Bearman, Sierra Ward, Sayed Asaduzzaman, Yasser Ahmed, Jianwei Qin, Moon Kim, Fartash Vasefi, Kaylee Husarik, Kouhyar Tavakolian, Hossein Kashani Zadeh

Proceedings Volume PC13060, PC130600K (2024) https://doi.org/10.1117/12.3014193

KEYWORDS: Spectroscopy, Machine learning, Statistical modeling, Spectroscopes, Fluorescence spectroscopy, Education and training, Data modeling, Visible radiation, Tissues, Systems modeling

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Proceedings Article | 10 June 2024 Poster

Poster

Identification of bacterial leaf streak and scab in wheat using multimode imaging and deep learning

Sayed Asaduzzaman, Gregory Bearman, Stanislav Sokolov, Gabriel Dusek, Andrew Friskop, Hamed Taheri Gorji, Kaylee Husarik, Jianwei Qin, Moon Kim, Fartash Vasefi, Hossein Kashani Zadeh

Proceedings Volume PC13060, PC130600L (2024) https://doi.org/10.1117/12.3014194

KEYWORDS: Diseases and disorders, Deep learning, RGB color model, Deep convolutional neural networks, Data modeling, Neurological disorders, Image segmentation, Image enhancement, Agriculture, Infrared radiation

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Proceedings Article | 7 June 2024 Presentation

Presentation

Multimode spectroscopy for food quality, adulteration, and traceability (QAT) applications

Hossein Kashani Zadeh, Mitchell Sueker, Sayed Asaduzzaman, Nicholas MacKinnon, Gregory Bearman, Jianwei Qin, Rosalee Hellberg, Fartash Vasefi, Kaylee Husarik, Moon Kim, Kouhyar Tavakolian

Proceedings Volume PC13060, PC130600C (2024) https://doi.org/10.1117/12.3014191

KEYWORDS: Spectroscopy, Data modeling, Support vector machines, Statistical analysis, Short wave infrared radiation, Safety, Reflectivity, Quality systems, Performance modeling, Machine learning

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Proceedings Article | 8 November 2020 Presentation + Paper

Presentation + Paper

Hyperspectral band selection for food fraud application using self-organizing maps (SOM)

John Chauvin, Fartash Vasefi, Kouhyar Tavakolian, Hossein Salehfar, Gregory Bearman, Nicholas MacKinnon, Jianwei Qin, Diane Chan, Moon Kim

Proceedings Volume 11525, 115250Z (2020) https://doi.org/10.1117/12.2580611

KEYWORDS: Wavelet packet decomposition, Luminescence, Hyperspectral imaging, Genetics, Machine learning, Infrared radiation, Infrared imaging, Image classification

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Proceedings Article | 22 February 2013 Paper

Paper

In vivo skin chromophore mapping using a multimode imaging dermoscope (SkinSpect™)

Nicholas MacKinnon, Fartash Vasefi, Eugene Gussakovsky, Gregory Bearman, Robert Chave, Daniel Farkas

Proceedings Volume 8587, 85870U (2013) https://doi.org/10.1117/12.2005587

KEYWORDS: Skin, RGB color model, Data modeling, Polarization, Tissues, Chromophores, Reflectivity, Melanoma, Tissue optics, Luminescence

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SPIE Journal Paper | 1 January 2011 Open Access

Open Access

Multispectral imaging of tissue absorption and scattering using spatial frequency domain imaging and a computed-tomography imaging spectrometer

Jessie Weber, Anthony Durkin, Bruce Tromberg, David Cuccia, William Johnson, Daniel Wilson, Gregory Bearman, Mike Hsu, Alexander Lin, Devin Binder

JBO, Vol. 16, Issue 1, 011015, (January 2011) https://doi.org/10.1117/12.10.1117/1.3528628

KEYWORDS: Absorption, Scattering, Tissue optics, Tissues, Spatial frequencies, Optical properties, Multispectral imaging, Spectroscopy, Brain mapping, Brain

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SPIE Journal Paper | 1 January 2007 Open Access

Open Access

Snapshot hyperspectral imaging in ophthalmology

William Johnson, Daniel Wilson, Wolfgang Fink, Mark Humayun, Gregory Bearman

JBO, Vol. 12, Issue 01, 014036, (January 2007) https://doi.org/10.1117/12.10.1117/1.2434950

KEYWORDS: Hyperspectral imaging, Oxygen, Cameras, Sensors, Spectroscopy, Ophthalmology, Retina, Oximetry, Image sensors, Absorption

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Proceedings Article | 23 March 2005 Paper

Paper

Volume holographic spectral imaging

Zhenyu Li, Demetri Psaltis, Wenhai Liu, William Johnson, Gregory Bearman

Proceedings Volume 5694, (2005) https://doi.org/10.1117/12.611350

KEYWORDS: Holograms, Volume holography, Diffraction, Imaging spectroscopy, Quantum dots, Spectroscopy, Imaging systems, Holography, Spatial resolution, Multiplexing

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Proceedings Article | 30 December 2004 Paper

Paper

An all-reflective computed tomography imaging spectrometer

William Johnson, Daniel Wilson, Gregory Bearman, Johan Backlund

Proceedings Volume 5660, (2004) https://doi.org/10.1117/12.568505

KEYWORDS: Computer generated holography, Microelectromechanical systems, Mirrors, Spectroscopy, Reflectivity, Staring arrays, Modulation transfer functions, Tomography, Optical design, Computed tomography

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Proceedings Article | 17 June 2002 Paper

Paper

Sensitive imaging of spectrally overlapping flourochromes using the LSM 510 META

Mary Dickinson, Christopher Waters, Gregory Bearman, Ralf Wolleschensky, Sebastian Tille, Scott Fraser

Proceedings Volume 4620, (2002) https://doi.org/10.1117/12.470686

KEYWORDS: Sensors, Imaging systems, Optical filters, Microscopy, Multispectral imaging, Green fluorescent protein, Linear filtering, Image filtering, Proteins, Fluorescence resonance energy transfer

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Proceedings Article | 6 June 2002 Paper

Paper

High-Q whispering-gallery mode sensor in liquids

Jay Nadeau, Vladimir Ilchenko, Dmitri Kossakovski, Gregory Bearman, Lute Maleki

Proceedings Volume 4629, (2002) https://doi.org/10.1117/12.469488

KEYWORDS: Optical spheres, Sensors, Molecules, Resonators, Proteins, Absorption, Liquids, Diffusion, Glasses, Chemistry

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SPIE Journal Paper | 1 July 2001 Open Access

Open Access

Ablation spectra of the human cornea

David Cohen, Roy Chuck, Gregory Bearman, Peter McDonnell, Warren Grundfest

JBO, Vol. 6, Issue 03, (July 2001) https://doi.org/10.1117/12.10.1117/1.1380670

KEYWORDS: Cornea, Luminescence, Laser ablation, Tissues, Excimer lasers, Principal component analysis, Laser tissue interaction, Surgery, Laser therapeutics, Ultraviolet radiation

SPIE Journal Paper | 1 July 2001 Open Access

Open Access

Resolution of multiple GFP color variants and dyes using two-photon microscopy and imaging spectroscopy

Rusty Lansford, Gregory Bearman, Scott Fraser

JBO, Vol. 6, Issue 03, (July 2001) https://doi.org/10.1117/12.10.1117/1.1383780

KEYWORDS: Green fluorescent protein, Optical filters, Imaging spectroscopy, Fluorescent proteins, RGB color model, Microscopy, Image filtering, Tunable filters, Composites, Principal component analysis

SPIE Journal Paper | 1 July 2000 Open Access

Open Access

Consequences of scattering for spectral imaging of turbid biological tissue

Mark Arnoldussen, David Cohen, Gregory Bearman, Warren Grundfest

JBO, Vol. 5, Issue 03, (July 2000) https://doi.org/10.1117/12.10.1117/1.430000

KEYWORDS: Tissue optics, Scattering, Imaging spectroscopy, Backscatter, Natural surfaces, Reflectors, Imaging systems, Tissues, Systems modeling, Sensors

Proceedings Article | 14 March 2000 Paper

Paper

Imaged backscatter from three-dimensional tissue structure

Mark Arnoldussen, David Cohen, Gregory Bearman, Warren Grundfest

Proceedings Volume 3920, (2000) https://doi.org/10.1117/12.379599

KEYWORDS: Photons, Tissue optics, Backscatter, Tissues, Scattering, Natural surfaces, Absorption, Light scattering, Chromophores, 3D modeling

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Proceedings Article | 26 July 1999 Paper

Paper

Application of infrared fiber optic imaging in atherosclerotic plaques

Bujin Guo, S. Casscells, Gregory Bearman, Janice McNatt, Morteza Naghevi, Basit Malik, Khawar Gul, James Willerson

Proceedings Volume 3698, (1999) https://doi.org/10.1117/12.354505

KEYWORDS: Infrared imaging, Infrared radiation, Thermography, Glasses, Fiber optics, Inflammation, Infrared cameras, Arteries, In vivo imaging, Calibration

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Proceedings Article | 6 May 1999 Paper

Paper

Effects of scattering in layered biological tissue on imaging spectroscopy data

Mark Arnoldussen, David Cohen, Gregory Bearman, Warren Grundfest

Proceedings Volume 3605, (1999) https://doi.org/10.1117/12.347570

KEYWORDS: Tissue optics, Reflectivity, Imaging spectroscopy, Scattering, Photon transport, Monte Carlo methods, Imaging systems, Tissues, Natural surfaces, Reflection

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Proceedings Article | 21 April 1999 Paper

Paper

Video-rate spectral imaging system for fluorescence microscopy

Bridget Ford, Curtis Volin, Andrew Rouse, Yashvinder Sabharwal, Ronald Lynch, Arthur Gmitro, Gregory Bearman, Michael Descour

Proceedings Volume 3603, (1999) https://doi.org/10.1117/12.346744

KEYWORDS: Microscopes, Luminescence, Confocal microscopy, Endoscopes, Imaging systems, Spectroscopy, Tissue optics, Cameras, Imaging spectroscopy, Microscopy

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Proceedings Article | 18 January 1999 Paper

Paper

Development of radiometric system models for performance comparison of proposed instruments

Betina Pavri, Gregory Bearman, Jack Margolis, Philip Moynihan, Karen Liu

Proceedings Volume 3533, (1999) https://doi.org/10.1117/12.336866

KEYWORDS: Instrument modeling, Spectroscopy, Systems modeling, Performance modeling, Fourier transforms, Signal to noise ratio, Electronic filtering, Radio optics, Motion models, Optical filters

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Proceedings Article | 16 October 1998 Paper

Paper

Video-rate spectral imaging of fluorescence phonomena

Bridget Ford, Curtis Volin, Michael Descour, John Garcia, Daniel Wilson, Paul Maker, Gregory Bearman

Proceedings Volume 3438, (1998) https://doi.org/10.1117/12.328119

KEYWORDS: Luminescence, Microscopes, Spectroscopy, Reconstruction algorithms, Data acquisition, Cameras, Imaging arrays, Imaging spectroscopy, Video, Optical filters

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Proceedings Article | 10 April 1998 Paper

Paper

High-speed spectral imager for imaging transient fluorescence phenomena

Michael Descour, Bridget Ford, Daniel Wilson, Paul Maker, Gregory Bearman

Proceedings Volume 3259, (1998) https://doi.org/10.1117/12.307327

KEYWORDS: Microscopes, Luminescence, Diffraction, Reconstruction algorithms, Spectroscopy, Imaging arrays, Imaging systems, Raster graphics, Imaging spectrometry, Data acquisition

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Proceedings Article | 6 January 1995 Paper

Paper

Multispectral imager for the agricultural user

Jessica Faust, Thomas Chrien, Gregory Bearman

Proceedings Volume 2345, (1995) https://doi.org/10.1117/12.198899

KEYWORDS: Imaging systems, Cameras, Agriculture, Spectrometers, Data acquisition, Process control, Vignetting, Multispectral imaging, Visualization, Printing

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Proceedings Article | 1 July 1992 Paper

Paper

Laser damage tests on InSb photodiodes at 1.064 um and 0.532 um

Gregory Bearman, Craig Staller, J. Colin Mahoney

Proceedings Volume 1686, (1992) https://doi.org/10.1117/12.60528

KEYWORDS: Diodes, Semiconductor lasers, Photodiodes, Black bodies, Sensors, Bandpass filters, Laser induced damage, Electronics, Data acquisition, Mirrors

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Showing 5 of 23 publications

Proceedings Volume Editor (5)

SPIE Conference Volume | 23 March 2005

Spectral Imaging: Instrumentation, Applications, and Analysis III

SPIE Conference Volume | 25 July 2003

First Jet Propulsion Laboratory In Situ Instruments Workshop

SPIE Conference Volume | 2 July 2003

Spectral Imaging: Instrumentation, Applications, and Analysis II

SPIE Conference Volume | 2 July 2001

Biomarkers and Biological Spectral Imaging

SPIE Conference Volume | 14 March 2000

Spectral Imaging: Instrumentation, Applications, and Analysis

Conference Committee Involvement (6)

Spectral Imaging: Instrumentation, Applications, and Analysis

23 January 2005 | San Jose, CA, United States

Spectral Imaging: Instrumentation, Applications, and Analysis

26 January 2003 | San Jose, CA, United States

First Jet Propulsion Laboratory In Situ Instruments Workshop

1 January 2003 | Bellingham, United States

Molecular Probes and Dyes: Development, Application, and Detection

22 January 2002 | San Jose, CA, United States

Biomarkers and Biological Spectral Imaging

23 January 2001 | San Jose, CA, United States

Showing 5 of 6 Conference Committees

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