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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - BARNet
T2 - Boundary-Aware Refined Network for Automatic Building Extraction in Very High-Resolution Urban Aerial Images
AU - Jin, Yuwei
AU - Xu, Wenbo
AU - Zhang, Ce
AU - Luo, Xin
AU - Jia, Haitao
PY - 2021/2/14
Y1 - 2021/2/14
N2 - The convolutional neural networks (CNNs), such as U-Net, have shown competitive performance in automatic extraction of buildings from very high-resolution (VHR) remotely sensed imagery. However, due to the unstable multi-scale context aggregation, the insufficient combination of multi-level features, and the lack of consideration about semantic boundary, most existing CNNs produce incomplete segmentation for large-scale buildings and result in predictions with huge uncertainty at building boundaries. This paper presents a novel network embedded a special boundary-aware loss, called Boundary-aware Refined Network (BARNet), to address the gap above. The unique property of BARNet is the gated-attention refined fusion unit (GARFU), the denser atrous spatial pyramid pooling (DASPP) module, and the boundary-aware (BA) loss. The performance of BARNet is tested on two popular benchmark datasets that include various urban scenes and diverse patterns of buildings. Experimental results demonstrate that the proposed method outperforms several state-of-the-art (SOTA) benchmark approaches in both visual interpretation and quantitative evaluations.
AB - The convolutional neural networks (CNNs), such as U-Net, have shown competitive performance in automatic extraction of buildings from very high-resolution (VHR) remotely sensed imagery. However, due to the unstable multi-scale context aggregation, the insufficient combination of multi-level features, and the lack of consideration about semantic boundary, most existing CNNs produce incomplete segmentation for large-scale buildings and result in predictions with huge uncertainty at building boundaries. This paper presents a novel network embedded a special boundary-aware loss, called Boundary-aware Refined Network (BARNet), to address the gap above. The unique property of BARNet is the gated-attention refined fusion unit (GARFU), the denser atrous spatial pyramid pooling (DASPP) module, and the boundary-aware (BA) loss. The performance of BARNet is tested on two popular benchmark datasets that include various urban scenes and diverse patterns of buildings. Experimental results demonstrate that the proposed method outperforms several state-of-the-art (SOTA) benchmark approaches in both visual interpretation and quantitative evaluations.
KW - VHR aerial images
KW - building extraction
KW - convolutional neural network
KW - feature fusion
KW - context aggregation
KW - boundary
U2 - 10.3390/rs13040692
DO - 10.3390/rs13040692
M3 - Journal article
VL - 13
JO - Remote Sensing
JF - Remote Sensing
SN - 2072-4292
IS - 4
M1 - 692
ER -