Intra-class spectra in the Pavia University ground truth vary more than labels suggest, and a threshold-based unsupervised method isolates spectrally more homogeneous regions, questioning ground-truth-based evaluation.
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Classification non supervis{\'e}es d'acquisitions hyperspectrales cod{\'e}es : quelles v{\'e}rit{\'e}s terrain ?
Intra-class spectra in the Pavia University ground truth vary more than labels suggest, and a threshold-based unsupervised method isolates spectrally more homogeneous regions, questioning ground-truth-based evaluation.