Work

hsi-preproc-toolbox: Reproducible radiometric preprocessing for UAV VNIR hyperspectral imagery in post-mining environments

Year: 2026
Type: software
Abstract: An open-source Python toolbox implementing a standardized radiometric preprocessing workflow for UAV-borne VNIR hyperspectral imagery acquired in post-mining environments. The workflow formalizes the transformation from raw digital numbers to surface reflectance via per-band dark current subtraction, single-panel empirical line calibration (NIST-traceable 50% Spectralon, median-based DN estimator), optional Savitzky-Golay smoothing, and integrated quality control (panel saturation screening, hold-out validation, negative-reflectance filtering, spectral-outlier removal). Designed to support multi-temporal monitoring across heterogeneous post-mining targets including mine waste, mine-affected waters, rehabilitating vegetation, and corroded infrastructure. Although the reference implementation targets the HAIP BlackBird V2 sensor, the workflow is structured so that it can be adapted to other UAV hyperspectral systems when equivalent calibration inputs and sensor metadata are provided. This software accompanies the paper: Flores, H., Rudolph, T., Benndorf, J. (2026). Standardizing UAV Hyperspectral Data for Monitoring Post-Mining Environments: A Reproducible Preprocessing Framework. Green and Smart Mining Engineering.
Language: English
Open Access status: green
OpenAlex ID: W7155195597
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