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@github-actions github-actions released this 04 Jun 16:24
· 63 commits to main since this release
v1.5.1
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CoastSeg v1.5.1 Release Notes

Advancing SAR-Based Shoreline Extraction

This release builds upon the foundational work initiated by Katie Devore and Dylan L. Anderson, focusing on enhancing shoreline extraction from Synthetic Aperture Radar (SAR) imagery.
The current models available for shoreline extraction were originally designed for RGB, NIR, and SWIR imagery and are serving as placeholders until development is finished on models better suited for SAR data.
We are actively developing a more robust solution to improve accuracy and reliability in SAR-based shoreline detection.

What's New

🛰️ SAR Data Integration

CoastSeg now supports downloading and processing SAR data, enabling users to analyze coastal regions under various conditions, including cloud cover and low-light scenarios.

Note: Currently, users can only download SAR imagery with:

  • "transmitterReceiverPolarisation": ["VH"]
  • "instrumentMode": "IW"

🧪 Experimental SAR Workflow

An initial SAR processing pipeline has been introduced, allowing users to experiment with SAR data for shoreline extraction.
This feature is in its early stages, and we welcome feedback to refine and enhance its capabilities.

🧰 SAR Support in Both Workflows

Users can now utilize SAR imagery in both the CoastSat and Zoo workflows:

  • CoastSat Workflow: Download SAR imagery and apply Otsu thresholding to delineate shorelines.

  • Zoo Workflow: Apply existing RGB models to SAR imagery or use custom models via the 5_zoo_workflow_local_model.py script.

SAR jpg SAR shoreline extraction

Issues Closed

Contributors

We extend our sincere thanks to the following contributors for their invaluable support in this release:

  • @2320sharon for their contributions to the project.
  • @dbuscombe-usgs and @mlundine for their assistance in developing the SAR data processing capabilities.
  • @Cjanda12 for beta testing this release and providing essential feedback.
  • @krd57 and Dylan L. Anderson for their work on developing CoastSeg.Arctic and sharing their code for downloading and processing SAR imagery.

Full Changelog

For a detailed list of changes, please refer to the full changelog.

We appreciate your continued support and contributions as we work towards more advanced and accurate shoreline extraction methods using SAR imagery.

Contributors

ddbuscombe, 2320sharon, and 3 other contributors
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