Sparse R-CNN: End-to-End Object Detection with Learnable Proposals, CVPR2021

Overview

Sparse R-CNN: End-to-End Object Detection with Learnable Proposals

License: MIT

Paper (CVPR 2021)

Sparse R-CNN: End-to-End Object Detection with Learnable Proposals

Updates

  • (02/03/2021) Higher performance is reported by using stronger backbone model PVT.
  • (23/02/2021) Higher performance is reported by using stronger pretrain model DetCo.
  • (02/12/2020) Models and logs(R101_100pro_3x and R101_300pro_3x) are available.
  • (26/11/2020) Models and logs(R50_100pro_3x and R50_300pro_3x) are available.
  • (26/11/2020) Higher performance for Sparse R-CNN is reported by setting the dropout rate as 0.0.

Models

Method inf_time train_time box AP download
R50_100pro_3x 23 FPS 19h 42.8 model | log
R50_300pro_3x 22 FPS 24h 45.0 model | log
R101_100pro_3x 19 FPS 25h 44.1 model | log
R101_300pro_3x 18 FPS 29h 46.4 model | log

Models and logs are available in Baidu Drive by code wt9n.

Notes

  • We observe about 0.3 AP noise.
  • The training time is on 8 GPUs with batchsize 16. The inference time is on single GPU. All GPUs are NVIDIA V100.
  • We use the models pre-trained on imagenet using torchvision. And we provide torchvision's ResNet-101.pkl model. More details can be found in the conversion script.
Method inf_time train_time box AP codebase
R50_300pro_3x 22 FPS 24h 45.0 detectron2
R50_300pro_3x.detco 22 FPS 28h 46.5 detectron2
PVTSmall_300pro_3x 13 FPS 50h 45.7 mmdetection
PVTv2-b2_300pro_3x 11 FPS 76h 50.1 mmdetection

Installation

The codebases are built on top of Detectron2 and DETR.

Requirements

  • Linux or macOS with Python ≥ 3.6
  • PyTorch ≥ 1.5 and torchvision that matches the PyTorch installation. You can install them together at pytorch.org to make sure of this
  • OpenCV is optional and needed by demo and visualization

Steps

  1. Install and build libs
git clone https://github.com/PeizeSun/SparseR-CNN.git
cd SparseR-CNN
python setup.py build develop
  1. Link coco dataset path to SparseR-CNN/datasets/coco
mkdir -p datasets/coco
ln -s /path_to_coco_dataset/annotations datasets/coco/annotations
ln -s /path_to_coco_dataset/train2017 datasets/coco/train2017
ln -s /path_to_coco_dataset/val2017 datasets/coco/val2017
  1. Train SparseR-CNN
python projects/SparseRCNN/train_net.py --num-gpus 8 \
    --config-file projects/SparseRCNN/configs/sparsercnn.res50.100pro.3x.yaml
  1. Evaluate SparseR-CNN
python projects/SparseRCNN/train_net.py --num-gpus 8 \
    --config-file projects/SparseRCNN/configs/sparsercnn.res50.100pro.3x.yaml \
    --eval-only MODEL.WEIGHTS path/to/model.pth
  1. Visualize SparseR-CNN
python demo/demo.py\
    --config-file projects/SparseRCNN/configs/sparsercnn.res50.100pro.3x.yaml \
    --input path/to/images --output path/to/save_images --confidence-threshold 0.4 \
    --opts MODEL.WEIGHTS path/to/model.pth

Third-party resources

License

SparseR-CNN is released under MIT License.

Citing

If you use SparseR-CNN in your research or wish to refer to the baseline results published here, please use the following BibTeX entries:

@article{peize2020sparse,
  title   =  {{SparseR-CNN}: End-to-End Object Detection with Learnable Proposals},
  author  =  {Peize Sun and Rufeng Zhang and Yi Jiang and Tao Kong and Chenfeng Xu and Wei Zhan and Masayoshi Tomizuka and Lei Li and Zehuan Yuan and Changhu Wang and Ping Luo},
  journal =  {arXiv preprint arXiv:2011.12450},
  year    =  {2020}
}
Owner
Peize Sun
PhD student, The University of Hong Kong, Computer Vision
Peize Sun
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