Applications for:

"Multispectral imaging through scattering media and around corners via spectral component separation" (2024) https://opg.optica.org/oe/fulltext.cfm?uri=oe-32-27-48786&id... .. https://news.ycombinator.com/item?id=42557904

"Multi-sensor characterization for an improved identification of polymers in WEEE recycling" (2024) [WEE: e-waste] https://news.ycombinator.com/item?id=42534637 ..

"Reversible optical data storage below the diffraction limit" (2023) https://news.ycombinator.com/item?id=42331986 :

>> [...] This is possible by multiplexing the storage in the spectral domain.

"Tongue Disease Prediction Based on Machine Learning Algorithms" (2024) https://www.mdpi.com/2227-7080/12/7/97 :

>> This study proposes a new imaging system to analyze and extract tongue color features at different color saturations and under different light conditions from five color space models (RGB, YcbCr, HSV, LAB, and YIQ).

"A self-healing multispectral transparent adhesive peptide glass" https://www.nature.com/articles/s41586-024-07408-x :

> Moreover, the supramolecular glass is an extremely strong adhesive yet it is transparent in a wide spectral range from visible to mid-infrared. This exceptional set of characteristics is observed in a simple bioorganic peptide glass composed of natural amino acids, presenting a multi-functional material

Further study:

/? hyperspectral, specra-: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...

Related applications:

Was looking into phase imaging and the four Stokes parameters S0,S1,S2,S3 and so on in assessing applications for the Parallel Axis Theorem: 2x2 "superpixel" imaging can capture the ((-45, 45), (L Circuluar, R Circular)) polarization information necessary to infer phase (and non-quantum optical entanglement is polarization)

Is polarimetric imaging (per-pixel polarization information) hyperspectral or hyperspectropolarimetrical?

spectropolarimetry: https://www.google.com/search?client=firefox-b-1-d&q=spectro...

Spectropolarimetry -> Polarimetry: https://en.wikipedia.org/wiki/Polarimetry

For example a division-of-focal-plane (DoFP) camera / image sensor has 2x2 pixels.