基于轻量级Transformer的城市路网提取方法

冯志成,杨杰,陈智超

Urban road network extraction method based on lightweight Transformer

Zhicheng FENG,Jie YANG,Zhichao CHEN

表 2 RoadViT的消融实验

Tab.2 Ablation experiments of RoadViT

模型 编码器 数据增强 动态加权损失 金字塔解码器 P/106 FLOPs/109 RIoU/% RoadViT MobileViT — — — 1.06 1.00 47.6 √ — — 1.06 1.00 53.6 — √ — 1.06 1.00 49.5 — — √ 1.25 1.18 50.5 — √ √ 1.25 1.18 51.4 √ √ — 1.06 1.00 55.7 √ — √ 1.25 1.18 56.5 √ √ √ 1.25 1.18 57.0 RoadViT-m MobileViT-xs √ √ √ 2.35 3.02 58.7 RoadViT-l MobileViT-s √ √ √ 5.97 6.01 59.7