Method Details


Details for method 'DRN_CRL_Coarse'

 

Method overview

name DRN_CRL_Coarse
challenge pixel-level semantic labeling
details DRN_CoarseSemantic image segmentation, which aims at assigning pixel-wise category, is one of challenging image understanding problems. Global context plays an important role on local pixel-wise category assignment. To make the best of global context, in this paper, we propose dense relation network (DRN) and context-restricted loss (CRL) to aggregate global and local information. DRN uses Recurrent Neural Network (RNN) with different skip lengths in spatial directions to get context-aware representations while CRL helps aggregate them to learn consistency. Compared with previous methods, our proposed method takes full advantage of hierarchical contextual representations to produce high-quality results. Extensive experiments demonstrate that our methods achieves significant state-of-the-art performances on Cityscapes and Pascal Context benchmarks, with mean-IoU of 82.8\% and 49.0\% respectively.
publication Dense Relation Network: Learning Consistent and Context-Aware Representation For Semantic Image Segmentation
Yueqing Zhuang
ICIP
project page / code https://github.com/zhuangyqin/DRN.git
used Cityscapes data fine annotations, coarse annotations
used external data ImageNet
runtime n/a
subsampling no
submission date February, 2018
previous submissions

 

Average results

Metric Value
IoU Classes 82.8251
iIoU Classes 61.0911
IoU Categories 91.7957
iIoU Categories 80.6953

 

Class results

Class IoU iIoU
road 98.8327 -
sidewalk 87.7225 -
building 93.9729 -
wall 65.0772 -
fence 64.1969 -
pole 70.0829 -
traffic light 77.3928 -
traffic sign 81.5929 -
vegetation 93.9152 -
terrain 73.4523 -
sky 95.8108 -
person 88.0006 71.382
rider 74.9025 53.8852
car 96.4639 90.8624
truck 80.8379 48.2226
bus 92.1434 53.9168
train 88.4703 55.9683
motorcycle 72.0538 50.1788
bicycle 78.7563 64.3124

 

Category results

Category IoU iIoU
flat 98.7664 -
nature 93.6501 -
object 76.0393 -
sky 95.8108 -
construction 94.1512 -
human 88.0986 72.419
vehicle 96.0536 88.9717

 

Links

Download results as .csv file

Benchmark page