Open Source Sentinel-2 Super-Resolution

Sentinel-2 Super-Resolution

Our Workflows Super-Resolute the 10- and 20m bands of Sentinel-2, create a SR product that profits from the high Revisit Rate of S2.

Open Source

Code and Model Weights are open sourced, making the Workflow and their Products available for all members of the Remote Sensing Community.

Explainability

The Models are designed with Explainability in mind, some come with Confidence Metrics so users can decide wether the product is useful for their application

Enhancing Spatial Details

The globally applicable models are able to reconstruct an impressive amount of detail for both the 10m RGB-NIR bands as well as the 20m bands of S2. We have a range of models, from lightweight SWIN to large latent diffusion models, enabling the user to select the model based on their specific need.

Sentinel-2 Super-Res
Sentinel-2 Super-Res

Preservation of Spectral Information

A special focus is on preserving the actual spectral information, the goal is to keep the actual reflectance values true to the phenomena on the ground. Since downstream applications rely on the spectral accuracy, our products are more than just hallucinated enhancement.

Explainable AI for trustworthy results

In order to convince remote sensing specialists of the viability of SR products, we produce condifence metrics along with the models to allow users to gauge the applicability of the SR product to their specific problem

Super-Res Uncertainty
				
					# Import Package
import sen2sr

# Load Model
model = mlstac.load("model/SEN2SRLite").compiled_model()

# Predict - pass Model and Image Tensor
superX = sen2sr.predict_large(model=model,X=X)
				
			

Easy Intergration in existing Workflows

Use OpenSR models quickly and easily through our pip packages, enabling the super-resolution of your images in just a few lines of code.

recent news

No-Code SR Demo is now live!

This demo, aimed at non-technical users, allows you to enter your coordinates and create a super-resolution product on your custom Sentinel-2 acquisition. Immediately judge wether SR can be useful for you application!

OpenSR Team @Living Planet Symposium

The OpenSR team joined ESA’s Living Planet Symposium 2025 to present our latest advances in Sentinel-2 super-resolution, dataset standards, and workflows. From latent diffusion models to FAIR-compliant data access with TACO, our tools aim to make high-resolution Earth observation more accessible and actionable.

New Release: OpenSR-UseCases Package

A lightweight validation toolkit to benchmark segmentation performance across low-, super-, and high-resolution imagery. Quantifies how well super-resolution models improve object detection and segmentation accuracy in real-world tasks. Ideal for researchers who want to go beyond visual inspection and measure actual downstream performance gains.

New Preprint: A Radiometrically and Spatially Consistent Super-Resolution Framework for Sentinel-2

We’ve published a new preprint presenting SEN2SR, a deep learning framework for super-resolving Sentinel-2 imagery with radiometric and spatial fidelity. The model leverages harmonized synthetic data, hard constraints, and xAI tools to achieve artifact-free enhancements at 2.5 m resolution.

RGB-NIR Latent Diffusion Super-Resolution Model Released!

Our Latent diffusion model, including weights, for the RGB-NIR bands of Sentinel-2 has been released.

New Publication: LDSR-S2 Model Paper

Our diffusion-based super-resolution model for Sentinel-2 imagery has been published in IEEE JSTARS! The open-access paper introduces a latent diffusion approach with pixelwise uncertainty maps—pushing the boundaries of trustworthy generative modeling in Earth observation.

SEN2NAIP v2.0 Released — A Major Boost for Sentinel-2 Super-Resolution

We’ve released SEN2NAIP v2.0, a large-scale dataset designed for training and validating super-resolution models on Sentinel-2 imagery. The dataset includes thousands of real and synthetic HR-LR image pairs, making it a cornerstone for future SR research in Earth Observation.

New Publication: SEN2NAIP published in ‘Scientific Data’

The dataset paper has been published in 'Scientific Data'.

The OpenSR team contributes to Flood Mapping for the Valencian Flash Floods

Our team at the University of Valencia has released an interactive satellite flood map of the recent Valencia flash floods, using Landsat-8 and Sentinel-2 imagery combined with a machine learning segmentation model. Leveraging super-resolution techniques, we enhanced Sentinel-2 data to 2.5m resolution, enabling more precise flood extent mapping for post-disaster analysis.

OpenSR-Utils Preview Released: A package to handle patching, tiling and overlapping for SR Products

We’ve released a preview of OpenSR-Utils, a Python package to apply super-resolution models on raw Sentinel-2 imagery. With multi-GPU support, georeferenced output, and automatic patching, it’s a practical toolkit for real-world remote sensing pipelines.

SUPERIX: Intercomparison Excercise

Presenting SUPERIX: a community-driven benchmark to rigorously compare super-resolution models for Sentinel-2 data. Using real-world datasets and tailored metrics, SUPERIX aims to uncover the true impact of SR techniques on remote sensing accuracy.

Team attends ESA SUREDOS Workshop in Frascati

Our team attended the ESA SUREDOS Workshop to discuss the role of super-resolution in enhancing Earth Observation data. The event explored cutting-edge deep learning techniques and the importance of reliable, domain-specific validation for scientific and operational EO applications.

New Publication: OpenSR-Test theoretical framework has been published

OpenSR-test is now published in IEEE GRSL! Our new paper introduces a rigorous benchmark for evaluating super-resolution in remote sensing with real-world datasets and meaningful metrics.

OpenSR-Test Framework and Datasets Released

Our framework to validate supre-resolution results is now published. It can take any SR model and create sophisticated validation metrics over mutliple datasets, enhancing the comparability of methodologies.

OpenSR-Degradation Released: Package to create Syntehtic Training Data

We’ve released OpenSR-Degradation, a toolkit to generate synthetic Sentinel-2-like imagery from NAIP using statistical, deterministic, and variational models. This open-source pipeline enables large-scale training and benchmarking for cross-sensor super-resolution.