Phy-CoSF: Physics-Guided Continuous Spectral Fields Reconstruction and Super-Resolution for Snapshot Compressive Imaging

Researchers introduced Phy-CoSF, a physics-guided method for hyperspectral reconstruction from CASSI snapshot measurements.

The model uses a two-phase design that combines deep unfolding with implicit neural representations.

Its continuous spectral fields module converts discrete training bands into continuous spectral rendering at arbitrary wavelengths.

This improves reconstruction quality and spectral resolution, pushing snapshot hyperspectral imaging beyond fixed-band outputs.