Title
Local Fusion Attention Network for Semantic Segmentation of Building Facade Point Clouds
Abstract
Automatic building facade point cloud semantic segmentation is an important step in 3-D urban building reconstruction. How to correctly segment the components (e.g., windows, walls, and columns) from the building facade is still a challenging task. According to the characteristics of building facade point clouds, we introduce local fusion attention network (LFA-Net), an efficient neural network that learns LFA features from building facade point clouds, for better capturing the local neighborhood structure information of each point. The core of LFA-Net is the LFA module, which consists of three neural units: local graph attention (LGA), local aggregation attention (LAA), and fusion attention (FA). The LFA-Net is the standard encoder-decoder architecture. Experiments demonstrate that our LFA-Net outperforms the state-of-the-art methods on the large-scale building facade point cloud dataset.
Year
DOI
Venue
2022
10.1109/LGRS.2021.3126735
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
Keywords
DocType
Volume
Buildings, Three-dimensional displays, Semantics, Image segmentation, Aggregates, Task analysis, Neural networks, Building facade, fusion attention (FA), local aggregation attention (LAA), local graph attention (LGA), semantic segmentation
Journal
19
ISSN
Citations 
PageRank 
1545-598X
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Yanfei Su100.68
Weiquan Liu200.68
Ming Cheng35413.93
Zhimin Yuan401.01
Cheng Wang511829.56