2 papers
physics.optics2025
Hyperspectral Reconstruction using Discrete LED-Structured Illumination
John C. Howell, Pieter H. Neethling, Tjaart P. J. Kruger
We consider the use of digital signal processing to reconstruct continuous reflectance spectra using a small finite set of randomly illuminated light emitting diodes (LEDs). We sim…
physics.ed-ph2024
Raspberry Pi multispectral imaging camera system (PiMICS): a low-cost, skills-based physics educational tool
John C. Howell, Brian Flores, Juan Javier Naranjo +9
We report on an educational pilot program for low-cost physics experimentation run in Ecuador, South Africa, and the United States. The program was developed after having needs-bas…