AI RESEARCH
R2H-Diff: Guided Spectral Diffusion Model for RGB-to-Hyperspectral Reconstruction
arXiv CS.CV
•
ArXi:2605.05688v1 Announce Type: new RGB-to-hyperspectral image reconstruction is a highly ill-posed inverse problem, since multiple plausible spectral distributions may correspond to the same RGB observation. Existing regression-based methods usually learn a deterministic mapping, which limits their ability to model reconstruction uncertainty and often leads to over-smoothed spectral responses.