Method Details


Details for method 'DCNAS+ASPP'

 

Method overview

name DCNAS+ASPP
challenge pixel-level semantic labeling
details Existing NAS algorithms usually compromise on restricted search space or search on proxy task to meet the achievable computational demands. To allow as wide as possible network architectures and avoid the gap between realistic and proxy setting, we propose a novel Densely Connected NAS (DCNAS) framework, which directly searches the optimal network structures for the multi-scale representations of visual information, over a large-scale target dataset without proxy. Specifically, by connecting cells with each other using learnable weights, we introduce a densely connected search space to cover an abundance of mainstream network designs. Moreover, by combining both path-level and channel-level sampling strategies, we design a fusion module and mixture layer to reduce the memory consumption of ample search space, hence favor the proxyless searching.
publication DCNAS: Densely Connected Neural Architecture Search for Semantic ImageSegmentation
project page / code
used Cityscapes data fine annotations, coarse annotations
used external data
runtime n/a
subsampling no
submission date November, 2020
previous submissions

 

Average results

Metric Value
IoU Classes 84.3039
iIoU Classes 68.4976
IoU Categories 92.6744
iIoU Categories 84.6444

 

Class results

Class IoU iIoU
road 98.9045 -
sidewalk 88.6849 -
building 94.5442 -
wall 67.9927 -
fence 66.996 -
pole 73.8727 -
traffic light 80.2904 -
traffic sign 83.7932 -
vegetation 94.3068 -
terrain 74.795 -
sky 96.2117 -
person 89.3011 77.2781
rider 77.9525 60.9795
car 96.7254 92.4803
truck 79.5956 55.5111
bus 94.9976 69.6897
train 86.9096 62.0622
motorcycle 75.2176 59.3201
bicycle 80.6826 70.6601

 

Category results

Category IoU iIoU
flat 98.8792 -
nature 94.0865 -
object 79.1939 -
sky 96.2117 -
construction 94.6235 -
human 89.3264 78.1007
vehicle 96.3997 91.188

 

Links

Download results as .csv file

Benchmark page