Title
MACU-Net for Semantic Segmentation of Fine-Resolution Remotely Sensed Images
Abstract
Semantic segmentation of remotely sensed images plays an important role in land resource management, yield estimation, and economic assessment. U-Net, a deep encoder-decoder architecture, has been used frequently for image segmentation with high accuracy. In this letter, we incorporate multiscale features generated by different layers of U-Net and design a multiscale skip connected and asymmetric-convolution-based U-Net (MACU-Net), for segmentation using fine-resolution remotely sensed images. Our design has the following advantages: (1) the multiscale skip connections combine and realign semantic features contained in both low-level and high-level feature maps; (2) the asymmetric convolution block strengthens the feature representation and feature extraction capability of a standard convolution layer. Experiments conducted on two remotely sensed data sets captured by different satellite sensors demonstrate that the proposed MACU-Net transcends the U-Net, U-Netpyramid pooling layers (PPL), U-Net 3+, among other benchmark approaches. Code is available at https://github.com/lironui/MACU-Net.
Year
DOI
Venue
2022
10.1109/LGRS.2021.3052886
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
Keywords
DocType
Volume
Convolution, Semantics, Remote sensing, Image segmentation, Kernel, Feature extraction, Decoding, Asymmetric convolution block (ACB), fine-resolution remotely sensed images, semantic segmentation
Journal
19
ISSN
Citations 
PageRank 
1545-598X
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Rui Li11916.31
Shunyi Zheng202.03
Chenxi Duan302.03