A self-attention based global feature enhancing network for semantic segmentation of large-scale urban street-level point clouds

Qi Chen,Zhenxin Zhang,Siyun Chen, Siyuan Wen,Hao Ma,Zhihua Xu

International Journal of Applied Earth Observation and Geoinformation（2022）

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摘要

•A novel network for semantic segmentation of large-scale urban point clouds.•A self-attention-based channel-wisely enhanced global feature is constructed.•A weighted semantic mapping module for highly accurate semantic segmentation.

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关键词

Urban street,Large-scale point clouds,Semantic segmentation,Attention mechanism,Global feature

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