This is the unofficial code of Deep Dual-resolution Networks for Real-time and Accurate Semantic Segmentation of Road Scenes. which achieve state-of-the-art trade-off between accuracy and speed on cityscapes and camvid, without using inference acceleration and extra data

chenjun

Last update: Dec 23, 2022

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Overview

Deep Dual-resolution Networks for Real-time and Accurate Semantic Segmentation of Road Scenes

Introduction

This is the unofficial code of Deep Dual-resolution Networks for Real-time and Accurate Semantic Segmentation of Road Scenes. which achieve state-of-the-art trade-off between accuracy and speed on cityscapes and camvid, without using inference acceleration and extra data!on single 2080Ti GPU, DDRNet-23-slim yields 77.4% mIoU at 109 FPS on Cityscapes test set and 74.4% mIoU at 230 FPS on CamVid test set.

The code mainly borrows from HRNet-Semantic-Segmentation OCR and the official repository, thanks for their work.

requirements

Here I list the software and hardware used in my experiment

pytorch==1.7.0
3080*2
cuda==11.1

Quick start

0. Data preparation

You need to download the Cityscapesdatasets. and rename the folder cityscapes, then put the data under data folder.

└── data
  ├── cityscapes
  └── list

1. Pretrained model

download the pretrained model on imagenet or the segmentation model from the official，and put the files in ${PROJECT}/pretrained_models folder

VAL

use the official pretrained model and our eval.py code. with ydhongHIT's advice now can reach the same accuracy in the paper. Thanks.

cd ${PROJECT}
python tools/eval.py --cfg experiments/cityscapes/ddrnet23_slim.yaml

model	Train Set	Test Set	OHEM	Multi-scale	Flip	mIoU	Link
DDRNet23_slim	unknown	eval	Yes	No	No	77.83	official
DDRNet23_slim	unknown	eval	Yes	No	Yes	78.42	official
DDRNet23	unknown	eval	Yes	No	No	79.51	official
DDRNet23	unknown	eval	Yes	No	Yes	79.98	official

Note

with the ALIGN_CORNERS: false in ***.yaml will reach higher accuracy.

TRAIN

download the imagenet pretrained model, and then train the model with 2 nvidia-3080

cd ${PROJECT}
python -m torch.distributed.launch --nproc_per_node=2 tools/train.py --cfg experiments/cityscapes/ddrnet23_slim.yaml

the own trained model coming soon

OWN model

model	Train Set	Test Set	OHEM	Multi-scale	Flip	mIoU	Link
DDRNet23_slim	train	eval	Yes	No	Yes	77.77	Baidu/password:it2s
DDRNet23_slim	train	eval	Yes	Yes	Yes	79.57	Baidu/password:it2s
DDRNet23	train	eval	Yes	No	Yes	~	None
DDRNet39	train	eval	Yes	No	Yes	~	None

Note

set the ALIGN_CORNERS: true in ***.yaml, because i use the default setting in HRNet-Semantic-Segmentation OCR.
Multi-scale with scales: 0.5,0.75,1.0,1.25,1.5,1.75. it runs too slow.
from ydhongHIT, can change the align_corners=True with better performance, the default option is False

Reference

[1] HRNet-Semantic-Segmentation OCR branch

[2] the official repository

Comments

DDRNet-23-slim, cannot reproduce results.
Hello, Thank you for the great work!

I am trying to reproduce the results of ddrnet-23_slim on Cityscapes val (77.83 mIoU) but could not do it.

I tried training for more than 484 epochs - 600 epochs and 1500 epochs with 2, 5 and 8 GPUs.

Evaluating with both heads model index 0 and model index 1

The best performance is around 74.2 mIoU.

I also noticed, the results do not match when you use different number of gpus but train for the same number of epochs.

Here are the training logs, 600epochs_5gpus_ddrnet23_slim_2021-06-02-20-21_train.txt 600epochs_8gpu_ddrnet23_slim_2021-06-03-09-32_train.txt 1500epochs_2gus_ddrnet23_slim_2021-06-04-18-36_train.txt

I would really appreciate your help. Thank you.
opened by rawalkhirodkar 6
Unable to reproduce the inference on my images from pre-trained models

I am trying to reproduce the model results on my own dataset from the pre-trained models on cityscapes but tools/eval.py is throwing errors each time I am trying and fixing the details. Can you just give me a gist of steps that I would need to take in order to get inference on my images from the pretrained model of ddrnet23_slim?

opened by Gourav2K 3
How to train / eval on only one GPU

I would highly appreciate if You were kind and tell me, how to eval and train this model on one GPU ?

I was changed GPUS: (0, 1) to GPUS: (0,) and not working.

opened by MateKristof 1
Could you share your training log?

Could you share your training log? I used the ddrnet23_slim's default setting (experiments/cityscapes/ddrnet23_slim.yaml) with 1000 Epochs but got only 0.6223 mIoU. thanks.

=> saving checkpoint to output/cityscapes/ddrnet23_slimcheckpoint.pth.tar Loss: 0.396, MeanIU: 0.6223, Best_mIoU: 0.6223 [0.96390848 0.76018533 0.88509226 0.32266355 0.43711438 0.54837026 0.62688693 0.70588259 0.91061873 0.5774142 0.93025264 0.7288157 0.41738881 0.89958299 0.27927647 0.50435703 0.23100624 0.38669031 0.70799136] Epoch: [999/1000] Iter:[0/92], Time: 4.41, lr: [1.995262314968881e-05], Loss: 0.317782, Acc:0.815917 Epoch: [999/1000] Iter:[10/92], Time: 1.06, lr: [1.798967935132047e-05], Loss: 0.330938, Acc:0.799646 Epoch: [999/1000] Iter:[20/92], Time: 0.91, lr: [1.6002587191915764e-05], Loss: 0.326241, Acc:0.789909 Epoch: [999/1000] Iter:[30/92], Time: 0.85, lr: [1.3987608745552127e-05], Loss: 0.331387, Acc:0.794377 Epoch: [999/1000] Iter:[40/92], Time: 0.80, lr: [1.1939715118663247e-05], Loss: 0.329101, Acc:0.795018 Epoch: [999/1000] Iter:[50/92], Time: 0.77, lr: [9.851793876099303e-06], Loss: 0.327667, Acc:0.797766 Epoch: [999/1000] Iter:[60/92], Time: 0.76, lr: [7.71304625589395e-06], Loss: 0.324819, Acc:0.797479 Epoch: [999/1000] Iter:[70/92], Time: 0.75, lr: [5.505178031253932e-06], Loss: 0.327130, Acc:0.796518 Epoch: [999/1000] Iter:[80/92], Time: 0.74, lr: [3.190465676883869e-06], Loss: 0.324793, Acc:0.797461 Epoch: [999/1000] Iter:[90/92], Time: 0.73, lr: [6.36089096925948e-07], Loss: 0.324365, Acc:0.794952

opened by polor1010 1
> > 同问

同问

你好，我也有这个疑问，请问您调换权重值实验了吗？我指标只有77，离79差的有点多，方便交流一下吗

我跑了slim版本的是75多，按照论文设置权重的话精度还会降低一些，你呢

Originally posted by @J0kerrr164 in https://github.com/chenjun2hao/DDRNet.pytorch/issues/22#issuecomment-1188930457

opened by scl666 0
image, label, _, name, *border_padding = batch

Hi, I cannot find the defined variable "border _padding " in function testval in file function.py. could you pls. tell me ? thanks !

image, label, _, name, *border_padding = batch

opened by Yaoxingtian 1
how can I reach the same accuracy in the paper?

Hi, bro, I train DDRNet-23 without pretrained model using 1024x1024 resolution. While it get 0.71mIoU metric. I want to know how can I reach the same accuracy in the paper? what is your trick? thanks

opened by coallar 0
bug

https://github.com/chenjun2hao/DDRNet.pytorch/blob/bc0e193e87ead839dbc715c48e6bfb059cf21b27/lib/utils/utils.py#L35 "and" should be "or"

opened by laocan 0

This is the unofficial code of Deep Dual-resolution Networks for Real-time and Accurate Semantic Segmentation of Road Scenes. which achieve state-of-the-art trade-off between accuracy and speed on cityscapes and camvid, without using inference acceleration and extra data

Related tags

Overview

Deep Dual-resolution Networks for Real-time and Accurate Semantic Segmentation of Road Scenes

Introduction

requirements

Quick start

0. Data preparation

1. Pretrained model

VAL

TRAIN

OWN model

Reference

Comments

Owner

chenjun

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