Localization with Sampling-Argmax

[Paper] [arXiv] [Project Page]

Localization with Sampling-Argmax
Jiefeng Li, Tong Chen, Ruiqi Shi, Yujing Lou, Yong-Lu Li, Cewu Lu
NeurIPS 2021

Differentiable Sampling

Requirements

• Python 3.6+
• PyTorch >= 1.2
• torchvision >= 0.3.0

Install

1. Install PyTorch

conda install pytorch==1.2.0 torchvision==0.4.0 cudatoolkit=10.0

2. Install sampling_argmax

python setup.py develop

Fetch data

Please download data from MSCOCO, Human3.6M and MTFL. Download and extract them under ./data, and make them look like this:

|-- exp
|-- sampling_argmax
|-- configs
|-- data
`-- |-- coco
        |-- annotations
        |-- train2017
        `-- val2017
    |-- h36m
        |-- annotations
        `-- images
    |-- mtfl
    `-- |-- AFLW
        |---net_7876
        |---lfw_5590
        |-- training.json
        `-- testing.json

Train from scratch

# COCO Keypoint
./scripts/train_pose.sh configs/coco/256x192_res50_lr1e-3_1x-simple-integral.yaml coco_samp
# Human3.6M
./scripts/train_pose.sh configs/h36m/256x192_adam_lr1e-3-simple_3d_base_1x_h36mmpii.yaml h36m_samp
# MTFL
./scripts/train_mtfl.sh configs/mtfl/256x192_res50_lr1e-3_1x-mtfl-simple-integral.yaml mtfl_samp

Evaluation

# COCO Keypoint
./scripts/validate_pose.sh configs/coco/256x192_res50_lr1e-3_1x-simple-integral.yaml ${CKPT}
# Human3.6M
./scripts/validate_pose.sh configs/h36m/256x192_adam_lr1e-3-simple_3d_base_1x_h36mmpii.yaml ${CKPT}
# MTFL
./scripts/validate_mtfl.sh configs/mtfl/256x192_res50_lr1e-3_1x-mtfl-simple-integral.yaml ${CKPT}

Results

COCO Keypoint

Results on COCO validation set:

Method	AP @0.5:0.95	AP @0.5	AP @0.75
Samp. Uni.	68.2	87.2	75.0
Samp. Tri.	69.8	87.9	76.2
Samp. Gau.	68.3	87.3	75.2

Human3.6M

Results on S9 and S11:

Method	MPJPE	PA-MPJPE
Samp. Uni.	49.6	39.1
Samp. Tri.	49.5	39.1
Samp. Gau.	50.9	39.0

MTFL

Results on MTFL:

Method	Abs	Rel
Samp. Uni.	3.00	6.86
Samp. Tri.	2.98	6.82
Samp. Gau.	2.94	6.96

If you find our code or paper useful, please consider citing

@inproceedings{li2021localization,
    title={Localization with Sampling-Argmax},
    author={Li, Jiefeng and Chen, Tong and Shi, Ruiqi and Lou, Yujing and Li, Yong-Lu and Lu, Cewu},
    booktitle={Advances in Neural Information Processing Systems (NeurIPS)},
    year={2021}
}