Learning a Dilated Residual Network for SAR Image Despeckling (2017-09-09T00:00:00.000000Z)

TL;DR

A novel deep learning approach by learning a non-linear end-to-end mapping between the noisy and clean SAR images with a dilated residual network (SAR-DRN), which shows superior performance over the state-of-the-art methods on both quantitative and visual assessments.

Abstract

In this paper, to break the limit of the traditional linear models for synthetic aperture radar (SAR) image despeckling, we propose a novel deep learning approach by learning a non-linear end-to-end mapping between the noisy and clean SAR images with a dilated residual network (SAR-DRN). SAR-DRN is based on dilated convolutions, which can both enlarge the receptive field and maintain the filter size and layer depth with a lightweight structure. In addition, skip connections and residual learning strategy are added to the despeckling model to maintain the image details and reduce the vanishing gradient problem. Compared with the traditional despeckling methods, the proposed method shows superior performance over the state-of-the-art methods on both quantitative and visual assessments, especially for strong speckle noise.

Authors

Qiangqiang Yuan

3 papers

Qiang Zhang

2 papers

Jie Li

1 papers

TL;DR

Abstract

Authors

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