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

doi:10.1117/12.2618566

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

Optical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

Long-range target identification is well studied in the Visible (Vis) and near-infrared (NIR) bands, and more recently in the shortwave infrared (SWIR). The longer wavelength of SWIR (1-1.7μm) improves target detection for both long ranges and under challenging atmospheric conditions because it is less limited by scattering and absorption in the atmosphere. For these reasons, SWIR sensors are proliferating on military platforms. The extended shortwave infrared (eSWIR) band spanning from 2 to 2.5μm is not typically limited by diffraction, and, as a result, the band benefits target acquisition both at long ranges and for degraded visual environments. Theoretical and experimental data compare eSWIR to Vis, NIR, and SWIR for atmospheric transmission, reflectivity, illumination, and sensor resolution and sensitivity. The experimental setup includes two testbeds, each with four cameras. The first is a wide field of view (FOV) testbed matching FOV at 20 degrees for each camera. The second is a narrow FOV telescope testbed to match instantaneous FOV (IFOV) for consistent resolution across all four bands at long ranges. Both the theory and experiment demonstrate advantages of using eSWIR for long-range target identification under degraded visual environments.

Original language	English (US)
Title of host publication	Infrared Imaging Systems
Subtitle of host publication	Design, Analysis, Modeling, and Testing XXXIII
Editors	Gerald C. Holst, David P. Haefner
Publisher	SPIE
ISBN (Electronic)	9781510650886
DOIs	https://doi.org/10.1117/12.2618566
State	Published - 2022
Event	Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII 2022 - Virtual, Online Duration: Jun 6 2022 → Jun 12 2022

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12106
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII 2022
City	Virtual, Online
Period	6/6/22 → 6/12/22

Keywords

NIR
SWIR
degraded visual environments
eSWIR
infrared
long-range imaging
target acquisition
target identification

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2618566

Cite this

Wiley, L., Follansbee, J., Leslie, P., Furxhi, O., Pimpinella, R., Brady, D., & Driggers, R. (2022). Target discrimination in the extended SWIR (eSWIR) band (2-2.5μm) compared to Vis, NIR, and SWIR in degraded visual environments. In G. C. Holst, & D. P. Haefner (Eds.), Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII Article 1210606 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12106). SPIE. https://doi.org/10.1117/12.2618566

Target discrimination in the extended SWIR (eSWIR) band (2-2.5μm) compared to Vis, NIR, and SWIR in degraded visual environments. / Wiley, Lindsey; Follansbee, Joshua; Leslie, Patrick et al.
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII. ed. / Gerald C. Holst; David P. Haefner. SPIE, 2022. 1210606 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12106).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wiley, L, Follansbee, J, Leslie, P, Furxhi, O, Pimpinella, R, Brady, D & Driggers, R 2022, Target discrimination in the extended SWIR (eSWIR) band (2-2.5μm) compared to Vis, NIR, and SWIR in degraded visual environments. in GC Holst & DP Haefner (eds), Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII., 1210606, Proceedings of SPIE - The International Society for Optical Engineering, vol. 12106, SPIE, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII 2022, Virtual, Online, 6/6/22. https://doi.org/10.1117/12.2618566

Wiley L, Follansbee J, Leslie P, Furxhi O, Pimpinella R, Brady D et al. Target discrimination in the extended SWIR (eSWIR) band (2-2.5μm) compared to Vis, NIR, and SWIR in degraded visual environments. In Holst GC, Haefner DP, editors, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII. SPIE. 2022. 1210606. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2618566

Wiley, Lindsey ; Follansbee, Joshua ; Leslie, Patrick et al. / Target discrimination in the extended SWIR (eSWIR) band (2-2.5μm) compared to Vis, NIR, and SWIR in degraded visual environments. Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII. editor / Gerald C. Holst ; David P. Haefner. SPIE, 2022. (Proceedings of SPIE - The International Society for Optical Engineering).

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

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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