Enhancing Crop Field Segmentation with Super-Resolved Sentinel-2 Imagery: A Deep Learning Approach Leveraging Multitemporal Edge Detection
Bibliographic record
Abstract
This study explores the potential of integrating super-resolved Sentinel-2 imagery to improve crop field segmentation, addressing the challenges in accurately delineating small and/or irregularly shaped agricultural fields. By combining multitemporal edge detection with deep learning techniques, segmentation accuracy is significantly improved. Super-resolution, implemented via an Enhanced Super-Resolution Generative Adversarial Network (ESRGAN), increases the spatial resolution of Sentinel-2 imagery from 10 meters to 2.5 meters, enabling finer detail extraction. A ResUNet model trained on standard 10 m resolution datasets demonstrates strong performance when applied to super-resolved imagery, showcasing its adaptability. Further improvements are achieved when models are specifically trained on super-resolved datasets. Results demonstrate enhanced segmentation in complex agricultural landscapes, such as the Fucino Plain (Italy), Punjab (India), and Suzhou (China), with ground truth-based validation in Quebec (Canada).
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".