The Multimodal Learning for Earth and Environment Workshop (MultiEarth 2023) is the second annual CVPR workshop aimed at leveraging the significant amount of remote sensing data that is continuously being collected to aid in the monitoring and analysis of the health of Earth ecosystems. Detailed information, including public challenge data download links, can be found on the workshop’s webpage at https://sites.google.com/view/rainforest-challenge. The goal of the workshop is to bring together the Earth and environmental science communities as well as the multimodal representation learning communities to examine new ways to leverage technological advances in support of environmental monitoring. In addition, through a series of public challenges, the MultiEarth Workshop hopes to provide a common benchmark for remote sensing multimodal information processing. There are two main categories of public challenges as part of the MultiEarth Workshop
There are three sub-challenges associated with this effort.
1A. Detection of deforestation
1B. Detection of fire / burned regions
1C. SAR to visible image translation; enables easily interpretable all-weather monitoring
There are two sub-challenges associated with this effort.
1A. Prediction of deforestation
1B. Prediction of collected imagery. An image generation task given historical data.
Multi-modal data collected from Landsat-5, Landsat-8, Sentinel-1, and Sentinel-2 along with deforestation and fire datasets are provided for use as part of these challenges at https://sites.google.com/view/rainforest-challenge. The data is provided in the form of NetCDF files as well as zipped tiff images. A small sample of the data formats is provided in this repository at here.
This repository holds tools for working with the large quantity of remote sensing data provided for these challenges.
Clone the repository and install with pip by running
$ git clone https://github.com/MIT-AI-Accelerator/multiearth-challenge && cd multiearth-challenge
$ pip install .This will automatically install the jupyter, matplotlib, netcdf4, numba, numpy, and xarray dependencies along with the package.
There are several dataset classes that are provided for loading MultiEarth data held in NetCDF formatted files and iterating through paired samples that are applicable to different types of challenge tasks. These paired samples will include imagery along with associated metadata such as collection date and sensor band.
ImageSegmentationDataset is a dataset designed for an image segmentation task, such as might be used in the detection of deforestation or burned region sub-challenges. It stores MultiEarth data and can be used to retrieve an image and its corresponding segmented image. Example usage and additional details can be found in the example_segmentation.ipynb notebook.
SARToVisibleDataset is a dataset designed for the sub-challenge of generating a distribution of visible images from a single SAR image. It stores MultiEarth data and can be used to retrieve a single source SAR image and a set of visible images from the same location. Note: unlike the previous datasets, there is only one source image and possibly multiple target images. Additionally, the SAR and EO images are not co-collected. Example usage and additional details can be found in the example_translation.ipynb notebook.
ImagePredictionDataset is a dataset designed for the "Long-term Prediction of Environmental Trends" category of challenges. It stores MultiEarth data and can be used to retrieve a set of past images and a target image from a future date, all for the same location in the Amazon. Example usage and additional details can be found in the example_prediction.ipynb notebook.
In addition to providing the data in the form of NetCDF files, tiff files in the same format as the data provided as part of the MultiEarth 2022 challenge are also being made available. This is the same data as that in the NetCDF files, but provided in an alternate format. Simple functions for parsing these files are provided in https://github.com/MIT-AI-Accelerator/multiearth-challenge/blob/main/src/multiearth_challenge/tiff_file_tools.py. Example usage and additional details can be found in the example_tiff_utils.ipynb notebook.
Research was sponsored by the United States Air Force Research Laboratory and the United States Air Force Artificial Intelligence Accelerator and was accomplished under Cooperative Agreement Number FA8750-19-2-1000. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the United States Air Force or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein.
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