TY  - CONF
AU  - Buffat, Jim
AU  - Pato, Miguel
AU  - Alonso, Kevin
AU  - Auer, Stefan
AU  - Carmona, Emiliano
AU  - Maier, Stefan
AU  - Müller, Rupert
AU  - Rademske, Patrick
AU  - Rascher, Uwe
AU  - Scharr, Hanno
TI  - Retrieval of Sun-Induced Plant Fluorescence in the O$_2$-A Absorption Band from DESIS Imagery
VL  - 15625
CY  - Cham
PB  - Springer Nature Switzerland
M1  - FZJ-2025-04535
SN  - 978-3-031-91835-3
T2  - Lecture Notes in Computer Science
SP  - 81 - 100
PY  - 2025
AB  - We provide the first method allowing to retrieve spaceborne SIF maps at 30 m ground resolution with a strong correlation (r$^2$ = 0.6) to high-quality airborne estimates of sun-induced fluorescence (SIF)  ̇SIF estimates can provide explanatory information for many tasks related to agricultural management and physiological studies. While SIF products from airborne platforms are accurate and spatially well resolved, the data acquisition of such products remains science-oriented and limited to temporally constrained campaigns. Spaceborne SIF products on the other hand are available globally with often sufficient revisit times. However, the spatial resolution of spaceborne SIF products is too small for agricultural applications. In view of ESA’s upcoming FLEX mission we develop a method for SIF retrieval in the O2-A band of hyperspectral DESIS imagery to provide first insights for spaceborne SIF retrieval at high spatial resolution. To this end, we train a simulation-based selfsupervised network with a novel perturbation based regularizer and test performance improvements under additional supervised regularization of atmospheric variable prediction. In a validation study with corresponding HyPlant derived SIF estimates at 740 nm we find that our model reaches a mean absolute difference of 0.78 mW nm$^{−1}$ sr$^{−1}$ m$^{−2}$
T2  - ECCV 2024 Workshops
CY  - 29 Sep 2024 - 30 Sep 2024, Milano (Italy)
Y2  - 29 Sep 2024 - 30 Sep 2024
M2  - Milano, Italy
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.1007/978-3-031-91835-3_6
UR  - https://juser.fz-juelich.de/record/1048173
ER  -