Karan Owalekar, Shailesh Deshpande
IEEE International Geoscience and Remote Sensing Symposium (IGARSS) · 2023
A one-shot approach to methane detection in hyperspectral imagery: a contrastive model compares an observed spectrum with a reference methane signature to predict methane presence, outperforming traditional approaches in accuracy and speed on AVIRIS data from the Aliso Canyon leak.
Karan Owalekar, Shailesh Deshpande, Arpan Pal
13th Workshop on Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing (WHISPERS) · 2023
Extends the one-shot detector with a triplet-loss objective that learns spectral embeddings for sharper separation between methane and background signatures, improving accuracy and speed over the earlier one-shot method on the same dataset.