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Automated extraction of coastline from satellite imagery

Automated extraction of coastline from satellite imagery. H.Liu and K.C. Jezek. Why? Autonomous Navigation Geographical Exploration Coastal Erosion Monitoring and Modelling Coastal Resource Inventory and Management. Boundary Detection Problem Edge Detection Image Segmentation.

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Automated extraction of coastline from satellite imagery

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  1. Automated extraction of coastline from satellite imagery H.Liu and K.C. Jezek

  2. Why? Autonomous Navigation Geographical Exploration Coastal Erosion Monitoring and Modelling Coastal Resource Inventory and Management. Boundary Detection Problem Edge Detection Image Segmentation Introduction

  3. Methodology Overview • Pre-segmentation • Segmentation • Post-segmentation

  4. Pre-segmentation Processing Algorithms • Noise Removal • Edge Enhancement

  5. Image Segmentation • Local Thresholds • Bimodal Gaussian Curve

  6. Image Segmentation • PDF • Lenvenberg-Margardt method • Canny Edge Detector

  7. Image Segmentation

  8. Image Segmentation • Where to start? • Solve the quadratic • Image segmentation

  9. Post Segmentation Processing • Region Grouping and Labelling • Delineating • Vectorization

  10. Application Example • Antarctic Imaging Campaign in 1997 • SAR Images

  11. Discussion and Conclusions • Image Quality • Improvements • Liu & Jezek 2004

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