Mr. Joshua Follansbee Profile

Joshua Follansbee

at Wyant College of Optical Sciences

SPIE Involvement:

Author

Publications (17)

SPIE Journal Paper | 10 December 2024

Performance comparison of continuous-wave and laser range-gate with continuous-wave time-of-flight and laser range-gate with range resolve active imaging systems

Joshua Teague, Orges Furxhi, Joshua Follansbee, Mark Spencer, Ronald Driggers

OE, Vol. 63, Issue 12, 123102, (December 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.12.123102

KEYWORDS: Imaging systems, Continuous wave operation, Active imaging, Sensors, Visibility, Pulsed laser operation, Performance modeling, Optical engineering, Light sources and illumination, Systems modeling

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Proceedings Article | 7 October 2024 Presentation + Paper

Illumination power requirements for an MCT APD vs. a COTS camera at 1.645um

Joshua Follansbee, Kayla Frye, Nicholas Hui, Casey Clark, Ronald Driggers, Matthew Kalensky

Proceedings Volume 13149, 1314909 (2024) https://doi.org/10.1117/12.3027363

KEYWORDS: Cameras, Avalanche photodetectors, Sensors, Nonuniformity corrections, Commercial off the shelf technology, Signal to noise ratio, Short wave infrared radiation, Light sources and illumination, Pulsed laser operation, Photons

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Proceedings Article | 4 October 2024 Presentation + Paper

Active imaging testbed development and field studies of SWIR and eSWIR active imaging

Joshua Follansbee, Joshua Teague, C. Kyle Renshaw, Ronald Driggers

Proceedings Volume 13149, 1314906 (2024) https://doi.org/10.1117/12.3026259

KEYWORDS: Short wave infrared radiation, Cameras, Active imaging, Telescopes, Light sources and illumination, Imaging systems, Design, Reflection, Nonuniformity corrections

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Proceedings Article | 10 June 2024 Presentation

Performance comparison of continuous-wave time-of-flight (CWToF) and laser-range gated with range-resolve (LRGRR) to laser-range-gated (LRG) and continuous-wave (CW) active-imaging systems

Joshua Teague, Orges Furxhi, Joshua Follansbee, Ronald Driggers, Mark Spencer

Proceedings Volume 13045, 130450K (2024) https://doi.org/10.1117/12.3013961

KEYWORDS: Continuous wave operation, Imaging systems, Active imaging, Image resolution, Design and modelling, Performance modeling

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Proceedings Article | 7 June 2024 Presentation + Paper

Detector size selection for long-range targeting performance in the extended shortwave infrared band

Lindsey Wiley, Adam Beheathland, Joshua Follansbee, Jeff Voss, Richard Pimpinella, Ron Driggers

Proceedings Volume 13045, 1304504 (2024) https://doi.org/10.1117/12.3012973

KEYWORDS: Sensors, Light sources and illumination, Imaging systems, Dark current, Cameras, Systems modeling, Short wave infrared radiation, Atmospheric modeling, Signal to noise ratio, Performance modeling

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Proceedings Article | 7 June 2024 Poster + Paper

Experimental comparison of imaging illumination modes for long-range target imaging in near-IR verse SWIR bands

Eunmo Kang, Oles Fylypiv, Jeremy Mares, Joshua Follansbee, Ron Driggers, C. Kyle Renshaw

Proceedings Volume 13045, 1304515 (2024) https://doi.org/10.1117/12.3013822

KEYWORDS: Active imaging, Short wave infrared radiation, Sensors, Near infrared, Continuous wave operation, Pulsed laser operation, Light sources and illumination, Speckle, Target acquisition, Visual process modeling

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Proceedings Article | 7 June 2024 Presentation + Paper

Image-plane speckle contrast and F[lambda]/d in active imaging systems

Joshua Follansbee, Eric Mitchell, C. Kyle Renshaw, Ronald Driggers

Proceedings Volume 13045, 1304508 (2024) https://doi.org/10.1117/12.3013515

KEYWORDS: Speckle, Sensors, Speckle pattern, Imaging systems, Active imaging, Simulations, Monte Carlo methods, Light sources and illumination, Target detection, Optical coherence, Infrared systems engineering

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Proceedings Article | 7 June 2024 Presentation + Paper

Imaging sensor band comparison for situational awareness in wildfires

Patrick Leslie, Joshua Follansbee, Thomas Watson, Shane Jordan, Lindsey Wiley, Eddie Jacobs, Ronald Driggers

Proceedings Volume 13045, 130450R (2024) https://doi.org/10.1117/12.3014050

KEYWORDS: Reflection, Sensors, Long wavelength infrared, Short wave infrared radiation, Forest fires, Calibration, Emissivity, Situational awareness sensors, Reflectivity, Fire

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SPIE Journal Paper | 2 May 2024

Image-plane speckle contrast and Fλ/d in active imaging systems

Joshua Follansbee, Eric Mitchell, Christopher Kyle Renshaw, Ronald Driggers

OE, Vol. 63, Issue 05, 053101, (May 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.5.053101

KEYWORDS: Speckle, Sensors, Imaging systems, Active imaging, Speckle pattern, Simulations, Optical engineering, Monte Carlo methods, Modulation transfer functions, Light sources and illumination

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SPIE Journal Paper | 31 January 2024 Open Access

Performance benefits of charge-domain gain in active shortwave infrared targeting

Derek Burrell, Joshua Follansbee, Orges Furxhi, Mark Spencer, John Lund, C. Kyle Renshaw, Ronald Driggers

OE, Vol. 63, Issue 01, 013104, (January 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.1.013104

KEYWORDS: Sensors, Shortwaves, Cameras, Visibility, Short wave infrared radiation, Dark current, Continuous wave operation, Optical engineering, Light sources and illumination, Indium gallium arsenide

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SPIE Journal Paper | 28 September 2023

Target acquisition performance comparison of active continuous-wave and range-gated imaging systems at 1.6 and 2.1 μm

Joshua Follansbee, Derek Burrell, Orges Furxhi, C. Kyle Renshaw, John Lund, Ronald Driggers

OE, Vol. 62, Issue 09, 094107, (September 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.9.094107

KEYWORDS: Short wave infrared radiation, Reflectivity, Imaging systems, Systems modeling, Performance modeling, Sensors, Active imaging, Visibility, Target acquisition, Atmospheric modeling

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Proceedings Article | 14 June 2023 Presentation + Paper

Comparison of reflective band (Vis, NIR, SWIR, eSWIR) performance in daytime reduced illumination conditions

Lindsey Wiley, Richard Cavanaugh, Joshua Follansbee, Derek Burrell, Robert Grimming, Rich Pimpinella, Jeff Voss, Orges Furxhi, Ron Driggers

Proceedings Volume 12533, 125330A (2023) https://doi.org/10.1117/12.2663402

KEYWORDS: Clouds, Light sources and illumination, Short wave infrared radiation, Near infrared, Cameras, Sun, Atmospheric modeling, Multiple scattering, Signal to noise ratio, Sensors

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Proceedings Article | 14 June 2023 Presentation + Paper

Signal and performance model for imaging systems with SPAD detectors

Orges Furxhi, Joshua Follansbee, Derek Burrell

Proceedings Volume 12533, 125330B (2023) https://doi.org/10.1117/12.2663503

KEYWORDS: Single photon avalanche diodes, Electrons, Histograms, Photons, Systems modeling, Imaging systems, Signal detection, LIDAR, Dark current, Cameras

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SPIE Journal Paper | 14 November 2022

Target discrimination in the extended shortwave infrared band (2 to 2.5μm) compared with visible, near-infrared, and SWIR in degraded visual environments

Lindsey Wiley, Joshua Follansbee, Patrick Leslie, Orges Furxhi, Rich Pimpinella, David Brady, Ronald Driggers

OE, Vol. 61, Issue 11, 113103, (November 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.11.113103

KEYWORDS: Short wave infrared radiation, Near infrared, Atmospheric modeling, Infrared radiation, Cameras, Shortwaves, Reflectivity, Visibility, Driver's vision enhancers, Visibility through fog

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SPIE Journal Paper | 19 September 2022

Drone detection performance in the reflective bands: visible, near infrared, short wave infrared, and extended short wave infrared

Joshua Follansbee, Lindsey Wiley, Patrick Leslie, Charles Revello, Ronald Driggers

OE, Vol. 61, Issue 09, 095106, (September 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.9.095106

KEYWORDS: Reflectivity, Short wave infrared radiation, Near infrared, Cameras, Visible radiation, Signal to noise ratio, Sensors, Infrared radiation, Infrared detectors, Target detection

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Proceedings Article | 27 May 2022 Presentation + Paper

Target discrimination in the extended SWIR (eSWIR) band (2-2.5µm) compared to Vis, NIR, and SWIR in degraded visual environments

Lindsey Wiley, Joshua Follansbee, Patrick Leslie, Orges Furxhi, Rich Pimpinella, David Brady, Ronald Driggers

Proceedings Volume 12106, 1210606 (2022) https://doi.org/10.1117/12.2618566

KEYWORDS: Short wave infrared radiation, Near infrared, Cameras, Visualization, Visibility through fog, Visibility, Reflectivity, Atmospheric modeling, Driver's vision enhancers, Atmospheric particles

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Proceedings Article | 27 May 2022 Presentation + Paper

Drone detection in the reflective bands: Vis, NIR, SWIR, eSWIR

Joshua Follansbee, Lindsey Wiley, Patrick Leslie, Charles Revello, Ronald Driggers

Proceedings Volume 12106, 121060A (2022) https://doi.org/10.1117/12.2618721

KEYWORDS: Reflectivity, Short wave infrared radiation, Near infrared, Signal to noise ratio, Cameras, Sensors, Target detection, Atmospheric particles, Visual process modeling, Performance modeling

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Showing 5 of 17 publications

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