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SRDA-Net: Super-Resolution Domain Adaptation Networks for Semantic Segmentation

2020-05-13 15:48:41
Enhai Liu, Zhenjie Tang, Bin Pan, Xia Xu, Tianyang Shi, Zhenwei Shi

Abstract

Recently, Unsupervised Domain Adaptation (UDA) was proposed to address the domain shift problem in semantic segmentation task, but it may perform poor when source and target domains belong to different resolutions. In this work, we design a novel end-to-end semantic segmentation network, Super- Resolution Domain Adaptation Network (SRDA-Net), which could simultaneously complete super-resolution and domain adaptation. Such characteristics exactly meet the requirement of semantic segmentation for remote sensing images which usually involve various resolutions. Generally, SRDA-Net includes three deep neural networks: a super-Resolution and Segmentation (RS) model focuses on recovering high-resolution image and predicting segmentation map; a pixel-level domain classifier (PDC) tries to distinguish the images from which domains; and output-space domain classifier (ODC) discriminates pixel label distribution from which domains. PDC and ODC are considered as the discriminators, and RS is treated as the generator. By the adversarial learning, RS tries to align the source with target domains on pixel-level visual appearance and output-space. Experiments are conducted on the two remote sensing datasets with different resolutions. SRDA-Net performs favorably against the state-of-the-art methods in terms of the mIoU metric.

Abstract (translated)

URL

https://arxiv.org/abs/2005.06382

PDF

https://arxiv.org/pdf/2005.06382.pdf


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