Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session M15: Physics in Medicine: Innovations in Imaging
11:30 AM–1:30 PM,
Wednesday, March 17, 2021
Sponsoring
Unit:
GMED
Chair: Urban Simoncic
Abstract: M15.00004 : Development and characterization of a modular hyperspectral imaging system*
12:06 PM–12:18 PM
Live
Presenter:
Jost Stergar
(Univ of Ljubljana)
Authors:
Jost Stergar
(Univ of Ljubljana)
Luka Rogelj
(Univ of Ljubljana)
Rok Dolenec
(Univ of Ljubljana)
Urban Simoncic
(Univ of Ljubljana)
Matija Milanic
(Univ of Ljubljana)
We present the development and characterization of a highly modular, custom built, visible and near-infrared HSI system with a custom broadband LED light source and variable field of view and resolution. System was calibrated using emission lines of standard gas lamps. Both spatial and spectral scales were calibrated, with spatial step as low as 65 μm and spectral step of 0.5 nm. Actual spectral resolutions was evaluated to be 2.9 nm, while spatial resolution was 0.1 mm. Stability and homogeneity of illumination were also verified. The instrument was compared with a reference spectrometer using thin glass cells filled with ink. Its clinical potential is also demonstrated by examples from biomedical field, such as a standard cuff test and pre-clinical murine abdominal wall imaging.
Following the calibration and verification, the system is confirmed as a reliable, highly modular and modifiable instrument that can be adapted and used in general or very specific problems in fields of biomedical research, material sciences, food QA, cultural heritage and others.
*Funding: ARRS P1-0389 and J2-8171
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