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From Spectra to Biophysical Insights: End-to-End Learning with a Biased Radiative Transfer Model

5 Mar 2024arXiv:2403.02922archive 2025-07-28

Yihang She, Clement Atzberger, Andrew Blake, Srinivasan Keshav

Advances in machine learning have boosted the use of Earth observation data for climate change research. Yet, the interpretability of machine-learned representations remains a challenge, particularly in understanding forests' biophysical reactions to climate change. Traditional methods in remote sensing that invert radiative transfer models (RTMs) to retrieve biophysical variables from spectral data often fail to account for biases inherent in the RTM, especially for complex forests. We propose to integrate RTMs into an auto-encoder architecture, creating an end-to-end learning approach. Our method not only corrects biases in RTMs but also outperforms traditional techniques for variable retrieval like neural network regression. Furthermore, our framework has potential generally for inverting biased physical models. The code is available on https://github.com/yihshe/ai-refined-rtm.git.

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bhattacharyya_distance yihshe/ai-refined-rtm/visuals/analysis_rtm.py official repository ran MIT (permissive) · 58d1160dc8971833 · report
exp1 yihshe/ai-refined-rtm/rtm_torch/Resources/special.py official repository ran fingerprinted MIT (permissive) · 451253a5efe9741e · report
jeffreys_matusita_distance yihshe/ai-refined-rtm/visuals/analysis_rtm.py official repository ran fingerprinted MIT (permissive) · f2e2ec42ed3507c5 · report
para_sampling yihshe/ai-refined-rtm/rtm_unittest.py official repository ran fingerprinted MIT (permissive) · f6847fdd3ba74eba · report
r_square yihshe/ai-refined-rtm/visuals/analysis_rtm_neurips.py official repository ran fingerprinted MIT (permissive) · 1b0abb9a588ab3d5 · report
to_tensor yihshe/ai-refined-rtm/rtm_torch/Resources/array2tensor.py official repository ran MIT (permissive) · 414df878160add26 · report

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Earth ObservationRetrieval

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