학술논문

A Water Segmentation Algorithm for SAR Image Based on Dense Depthwise Separable Convolution
Document Type
article
Source
Leida xuebao, Vol 8, Iss 3, Pp 400-412 (2019)
Subject
Synthetic Aperture Radar (SAR)
Water segmentation
Deep learning
Dense separable convolution
Feature extraction
Electricity and magnetism
QC501-766
Language
English
Chinese
ISSN
2095-283X
Abstract
Water segmentation of real SAR images is of great significance in military and civilian applications such as ship target detection and disaster monitoring. To solve the issues of poor robustness and inaccurate segmentation of traditional water segmentation algorithms, this paper first establishes a SAR water segmentation dataset based on the GF3 satellite and then presents a segmentation network architecture based on depthwise separable convolution. The network takes real SAR images as inputs, extracts high-dimensional features through depthwise separable and dilated convolutions, constructs an up-sampling and decoding module based on bilinear interpolation, and then outputs the corresponding segmentation results. The segmentation results of a water segmentation dataset show that the proposed segmentation method remarkably improves the segmentation accuracy, the segmentation robustness and running speed than traditional method. Therefore, the findings demonstrate the excellent practical engineering value of the proposed algorithm.