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Deep learning model to classify burn scars in multispectral satellite imagery. A brief summary of the item is not available. Add a brief summary about the item.

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Item created: Jan 3, 2024 Item updated: Jan 1, 2025 Number of downloads: 3,635

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Description

One of the key challenges in monitoring wildfires lies in distinguishing burn scars from non-burnt areas and assessing the extent of damage.  This differentiation is crucial to assist emergency responders in their decision-making ability. Satellite imagery enriched with high temporal and spectral information, coupled with advancements in machine learning methods, present an avenue for automated monitoring and management of post-wildfire landscapes on a large scale. The burn scar deep learning model can emerge as an indispensable tool to tackle the task of accurately identifying and mapping the aftermath of wildfires from satellite imagery.

The Prithivi-100M-burn-scar model has been developed by NASA and IBM by finetuning their foundation model for earth observation - Prithvi-100m, using HLS Burn Scar Scenes dataset. Use this model to automate the process of identifying burn scars in multispectral satellite imagery. 

Using the model
Follow the guide to use the model. Before using this model, ensure that the supported deep learning libraries are installed. For more details, check Deep Learning Libraries Installer for ArcGIS.

Fine-tuning the model
This model can be fine-tuned using the ArcGIS API for Python. Follow the guide to fine-tune this model.

Input

Raster, mosaic dataset, or image service. These must be a 6-band composite raster derived from either  Harmonized Landsat 8 (HLSL30) or Harmonized Sentinel 2 (HLSS30). The model can also be used with level-2 products of Sentinel-2 and Landsat-8, yet it performs most effectively with HLSL30 and HLSS30.

The composite raster should contain the following 6 bands: Blue, Green, Red, Narrow NIR, SWIR, SWIR 2.

Band numbers for the above mentioned bands are: 

  • For HLSS30 and Sentinel-2: Band2, Band3, Band4, Band8A, Band11, Band12 
  • For HLSL30 and Landsat 8: Band2, Band3, Band4, Band5, Band6, Band7


Output
Classified raster with 2 classes (no burn and burn scar).

Applicable geographies

This model is expected to work well across the globe.

Model architecture

This model packages IBM and NASA's Prithvi-100M-burn-scar and uses a self-supervised encoder developed with a ViT architecture and Masked AutoEncoder (MAE) learning strategy.

Accuracy metrics

This model has an IoU of 0.73 on the burn scar class and 96.00 percent overall accuracy.

Training data
This model finetunes the pretrained Prithvi-100m model to segment the extent of burned area on multispectral satellite images from the  HLS Burn Scar Scenes dataset.

Limitations
This model may not give satisfactory results in areas near water bodies.

Sample results
Here are a few results from the model.





Citations
Phillips, C., Roy, S., Ankur, K., & Ramachandran, R. (2023). HLS Foundation Burnscars Dataset.

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https://downloads.esri.com/blogs/arcgisonline/esrilogo_new.png This work is licensed under the Esri Master License Agreement.

No special restrictions or limitations on using the item's content have been provided.

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          IBM, NASA

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