Muthukumaran
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impact-comms-update
Browse fileschanges from the NASA-IMPACT O&C team
README.md
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---
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### Model and Inputs
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The
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1. Blue
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2. Green
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@@ -27,19 +27,19 @@ The pretrained [Prithvi-100m](https://huggingface.co/ibm-nasa-geospatial/Prithvi
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5. SWIR 1
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6. SWIR 2
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![](burn_scar.png)
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It is important to point out that the HLS
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### Code
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Code for
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Configuration used for
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### Results
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The experiment by running the mmseg stack for 50 epochs using the above config led to an IoU of **0.72** on the burn scar class and **0.96** overall accuracy. It is noteworthy that this leads to a
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### Inference and demo
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The github repo includes an inference script that allows to run the burn scar model for inference on HLS images. These
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### Citation
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---
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### Model and Inputs
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The pre-trained [Prithvi-100m](https://huggingface.co/ibm-nasa-geospatial/Prithvi-100M/blob/main/README.md) parameter model is fine-tuned to detect burn scars on HLS data from the [HLS burn scar scenes dataset](https://huggingface.co/datasets/ibm-nasa-geospatial/hls_burn_scars). This dataset includes input tiles of 512x512x6, where 512 is the height and width and 6 is the number of bands. The bands are:
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1. Blue
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2. Green
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5. SWIR 1
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6. SWIR 2
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![](burn_scar.png)
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It is important to point out that the HLS burn scar scenes dataset includes a single timestep, while the Prithvi-100m was pretrained with three timesteps. The difference highlights the flexibility of this model to adapt to different downstream tasks and requirements.
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### Code
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Code for fine-tuning is available through [Github](https://github.com/NASA-IMPACT/hls-foundation-os/tree/main/fine-tuning-examples)
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Configuration used for fine-tuning is available through [config](https://github.com/NASA-IMPACT/hls-foundation-os/blob/main/fine-tuning-examples/configs/firescars_config.py
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).
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### Results
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The experiment conducted by running the mmseg stack for 50 epochs using the above config led to an IoU of **0.72** on the burn scar class and **0.96** overall accuracy. It is noteworthy that this leads to a reasonably good model, but further developement will most likely improve performance.
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### Inference and demo
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The github repo includes an inference script that allows to run the burn scar model for inference on HLS images. These inputs have to be in geotiff format, including the channels described above (Blue, Green, Red, Narrow NIR, SWIR, SWIR 2) in reflectance units [0-1]. A **demo** that leverages the same code can be found **[here](https://huggingface.co/spaces/ibm-nasa-geospatial/Prithvi-100M-Burn-scars-demo)**.
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### Citation
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