Welcome to samgeo¶

A Python package for segmenting geospatial data with the Segment Anything Model (SAM) 🗺️

Introduction¶

The segment-geospatial package draws its inspiration from segment-anything-eo repository authored by Aliaksandr Hancharenka. To facilitate the use of the Segment Anything Model (SAM) for geospatial data, I have developed the segment-anything-py and segment-geospatial Python packages, which are now available on PyPI and conda-forge. My primary objective is to simplify the process of leveraging SAM for geospatial data analysis by enabling users to achieve this with minimal coding effort. I have adapted the source code of segment-geospatial from the segment-anything-eo repository, and credit for its original version goes to Aliaksandr Hancharenka.

🆓 Free software: MIT license
📖 Documentation: https://samgeo.gishub.org

Citations¶

Wu, Q., & Osco, L. (2023). samgeo: A Python package for segmenting geospatial data with the Segment Anything Model (SAM). Journal of Open Source Software, 8(89), 5663. https://doi.org/10.21105/joss.05663
Osco, L. P., Wu, Q., de Lemos, E. L., Gonçalves, W. N., Ramos, A. P. M., Li, J., & Junior, J. M. (2023). The Segment Anything Model (SAM) for remote sensing applications: From zero to one shot. International Journal of Applied Earth Observation and Geoinformation, 124, 103540. https://doi.org/10.1016/j.jag.2023.103540

Features¶

Download map tiles from Tile Map Service (TMS) servers and create GeoTIFF files
Segment GeoTIFF files using the Segment Anything Model (SAM) and HQ-SAM
Segment remote sensing imagery with text prompts
Create foreground and background markers interactively
Load existing markers from vector datasets
Save segmentation results as common vector formats (GeoPackage, Shapefile, GeoJSON)
Save input prompts as GeoJSON files
Visualize segmentation results on interactive maps
Segment objects from timeseries remote sensing imagery

Examples¶

Demos¶

Automatic mask generator

Interactive segmentation with input prompts

Input prompts from existing files

Interactive segmentation with text prompts

Tutorials¶

Video tutorials are available on my YouTube Channel.

Automatic mask generation

Using SAM with ArcGIS Pro

Interactive segmentation with text prompts

Using SAM with Desktop GIS¶

QGIS: Check out the Geometric Attributes plugin for QGIS. Credit goes to Bjorn Nyberg.
ArcGIS: Check out the Segment Anything Model (SAM) Toolbox for ArcGIS and the Resources for Unlocking the Power of Deep Learning Applications Using ArcGIS. Credit goes to Esri.

Computing Resources¶

The Segment Anything Model is computationally intensive, and a powerful GPU is recommended to process large datasets. It is recommended to have a GPU with at least 8 GB of GPU memory. You can utilize the free GPU resources provided by Google Colab. Alternatively, you can apply for AWS Cloud Credit for Research, which offers cloud credits to support academic research. If you are in the Greater China region, apply for the AWS Cloud Credit here.

Legal Notice¶

This repository and its content are provided for educational purposes only. By using the information and code provided, users acknowledge that they are using the APIs and models at their own risk and agree to comply with any applicable laws and regulations. Users who intend to download a large number of image tiles from any basemap are advised to contact the basemap provider to obtain permission before doing so. Unauthorized use of the basemap or any of its components may be a violation of copyright laws or other applicable laws and regulations.

Acknowledgements¶

This project is based upon work partially supported by the National Aeronautics and Space Administration (NASA) under Grant No. 80NSSC22K1742 issued through the Open Source Tools, Frameworks, and Libraries 2020 Program.

This project is also supported by Amazon Web Services (AWS). In addition, this package was made possible by the following open source projects. Credit goes to the developers of these projects.