Shoreline Extraction from RADARSAT-2 Intensity Imagery Using a Narrow Band Level Set Segmentation Approach

Abstract

This paper presents a semi-automated method for shoreline extraction from RADARSAT-2 intensity imagery. First, a preprocessing is applied to enhance the contrast of the SAR image. Second, thresholding combined with morphological filtering is employed to segment the SAR image into the land and the sea. Third, narrow band level set segmentation is implemented to refine the segmentation result. In the last step, morphological filters are utilized to eliminate any remaining spurious segments. Boundaries between the land and the sea are delineated into shorelines based on the segmentation result. Experiment on RADARSAT-2 intensity images demonstrates that the proposed method is promising.

Keywords:

• Shoreline mapping
• RADARSAT-2
• level set segmentation
• narrow band

Acknowledgements

The authors would like to thanks the three anonymous reviewers for their valuable comments and suggestions.