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 |