River channel segmentation in polarimetric SAR images: Watershed transform combined with average contrast maximisation

作者:

Highlights:

• A new approach to river channel segmentation from polarimetric SAR images.

• It combines the watershed segmentation with average contrast maximisation.

• The over-segmentation is reduced using gradient reconstruction.

• The average segmentation time for an image of 1383 × 821 pixels amounts to 1.73  s.

• The average overlap value index amounts to 90% in the experiments completed.

摘要

•A new approach to river channel segmentation from polarimetric SAR images.•It combines the watershed segmentation with average contrast maximisation.•The over-segmentation is reduced using gradient reconstruction.•The average segmentation time for an image of 1383 × 821 pixels amounts to 1.73  s.•The average overlap value index amounts to 90% in the experiments completed.

论文关键词:Synthetic Aperture Radar (SAR),Polarimetric synthetic aperture radar,River channel segmentation,Watershed segmentation,Over–segmentation reduction,Morphological image processing

论文评审过程:Received 1 August 2016, Revised 6 April 2017, Accepted 7 April 2017, Available online 8 April 2017, Version of Record 19 April 2017.

论文官网地址:https://doi.org/10.1016/j.eswa.2017.04.018