Method Details


Details for method 'LRR-4x'

 

Method overview

name LRR-4x
challenge pixel-level semantic labeling
details We introduce a CNN architecture that reconstructs high-resolution class label predictions from low-resolution feature maps using class-specific basis functions. Our multi-resolution architecture also uses skip connections from higher resolution feature maps to successively refine segment boundaries reconstructed from lower resolution maps. The model used for this submission is based on VGG-16 and it was trained using both coarse and fine annotations. The segmentation predictions were not post-processed using CRF.
publication Laplacian Pyramid Reconstruction and Refinement for Semantic Segmentation
Golnaz Ghiasi, Charless C. Fowlkes
ECCV 2016
http://arxiv.org/abs/1605.02264
project page / code https://github.com/golnazghiasi/LRR
used Cityscapes data fine annotations, coarse annotations
used external data ImageNet
runtime n/a
subsampling no
submission date August, 2016
previous submissions 1

 

Average results

Metric Value
IoU Classes 71.8457
iIoU Classes 47.8678
IoU Categories 88.4369
iIoU Categories 73.8574

 

Class results

Class IoU iIoU
road 97.9466 -
sidewalk 81.4949 -
building 91.3642 -
wall 50.5313 -
fence 52.6702 -
pole 59.4291 -
traffic light 66.8257 -
traffic sign 72.7336 -
vegetation 92.5145 -
terrain 70.1296 -
sky 95.0208 -
person 81.3265 60.9935
rider 60.1384 39.7131
car 94.2722 86.7025
truck 51.17 30.3524
bus 67.7346 40.0588
train 54.5749 34.4976
motorcycle 55.5963 35.3911
bicycle 69.5947 55.2336

 

Category results

Category IoU iIoU
flat 98.444 -
nature 92.1846 -
object 66.8819 -
sky 95.0208 -
construction 91.5382 -
human 81.8707 62.7312
vehicle 93.118 84.9836

 

Links

Download results as .csv file

Benchmark page