Figure 7
From: Detection of REEs with lightweight UAV-based hyperspectral imaging
(A) Pre-processing steps of UAV-based hyperspectral data20. (B) Spectral check of the RIKOLA hyperspectral imager with 1 nm and 8 nm spectral sampling respectively compared to a reference fluorescent lamp with known emissions of Hg (404.66 nm, 435.83 nm and 546.08 nm) and Ba (611.08 nm).
