RESA

PyTorch implementation of the paper "RESA: Recurrent Feature-Shift Aggregator for Lane Detection".

Our paper has been accepted by AAAI2021.

Introduction

• RESA shifts sliced feature map recurrently in vertical and horizontal directions and enables each pixel to gather global information.
• RESA achieves SOTA results on CULane and Tusimple Dataset.

Get started

1. Clone the RESA repository

   git clone https://github.com/zjulearning/resa.git
   

   We call this directory as $RESA_ROOT

2. Create a conda virtual environment and activate it (conda is optional)

   conda create -n resa python=3.8 -y
   conda activate resa

3. Install dependencies

   # Install pytorch firstly, the cudatoolkit version should be same in your system. (you can also use pip to install pytorch and torchvision)
   conda install pytorch torchvision cudatoolkit=10.1 -c pytorch
   
   # Or you can install via pip
   pip install torch torchvision
   
   # Install python packages
   pip install -r requirements.txt

4. Data preparation

   Download CULane and Tusimple. Then extract them to $CULANEROOT and $TUSIMPLEROOT. Create link to data directory.

   cd $RESA_ROOT
   mkdir -p data
   ln -s $CULANEROOT data/CULane
   ln -s $TUSIMPLEROOT data/tusimple

   For CULane, you should have structure like this:

   $CULANEROOT/driver_xx_xxframe    # data folders x6
   $CULANEROOT/laneseg_label_w16    # lane segmentation labels
   $CULANEROOT/list                 # data lists
   

   For Tusimple, you should have structure like this:

   $TUSIMPLEROOT/clips # data folders
   $TUSIMPLEROOT/lable_data_xxxx.json # label json file x4
   $TUSIMPLEROOT/test_tasks_0627.json # test tasks json file
   $TUSIMPLEROOT/test_label.json # test label json file
   
   

   For Tusimple, the segmentation annotation is not provided, hence we need to generate segmentation from the json annotation.

   python scripts/generate_seg_tusimple.py --root $TUSIMPLEROOT
   # this will generate seg_label directory

5. Install CULane evaluation tools.

   This tools requires OpenCV C++. Please follow here to install OpenCV C++. Or just install opencv with command sudo apt-get install libopencv-dev

   Then compile the evaluation tool of CULane.

   cd $RESA_ROOT/runner/evaluator/culane/lane_evaluation
   make
   cd -

   Note that, the default opencv version is 3. If you use opencv2, please modify the OPENCV_VERSION := 3 to OPENCV_VERSION := 2 in the Makefile.

Training

For training, run

python main.py [configs/path_to_your_config] --gpus [gpu_ids]

For example, run

python main.py configs/culane.py --gpus 0 1 2 3

Testing

For testing, run

python main.py c[configs/path_to_your_config] --validate --load_from [path_to_your_model] [gpu_num]

For example, run

python main.py configs/culane.py --validate --load_from culane_resnet50.pth --gpus 0 1 2 3

python main.py configs/tusimple.py --validate --load_from tusimple_resnet34.pth --gpus 0 1 2 3

We provide two trained ResNet models on CULane and Tusimple, downloading our best performed model (Tusimple: GoogleDrive/BaiduDrive(code:s5ii), CULane: GoogleDrive/BaiduDrive(code:rlwj) )

Citation

@misc{zheng2020resa,
      title={RESA: Recurrent Feature-Shift Aggregator for Lane Detection}, 
      author={Tu Zheng and Hao Fang and Yi Zhang and Wenjian Tang and Zheng Yang and Haifeng Liu and Deng Cai},
      year={2020},
      eprint={2008.13719},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}