Integral Human Pose Regression
The major contributors of this repository include Xiao Sun, Chuankang Li, Bin Xiao, Fangyin Wei, Yichen Wei.
Introduction
Integral Regression is initially described in an ECCV 2018 paper. (Slides).
We build a 3D pose estimation system based mainly on the Integral Regression, placing second in the ECCV2018 3D Human Pose Estimation Challenge. Note that, the winner Sarandi et al. also uses the Integral Regression (or soft-argmax) with a better augmented 3D dataset in their method indicating the Integral Regression is the currently state-of-the-art 3D human pose estimation method.
The Integral Regression is also known as soft-argmax. Please refer to two contemporary works (Luvizon et al. and Nibali et al.) for a better comparision and more comprehensive understanding.
Disclaimer
This is an official implementation for Integral Human Pose Regression based on Pytorch. It is worth noticing that:
- The original implementation is based on our internal Mxnet version. There are slight differences in the final accuracy and running time due to the plenty details in platform switch.
License
© Microsoft, 2017. Licensed under an MIT license.
Citing Papers
If you find Integral Regression useful in your research, please consider citing:
@article{sun2017integral,
title={Integral human pose regression},
author={Sun, Xiao and Xiao, Bin and Liang, Shuang and Wei, Yichen},
journal={arXiv preprint arXiv:1711.08229},
year={2017}
}
Main Results
Train on CHALL_H80K train, evaluate on CHALL_H80K val.
description | box det. | dataset | backbone | patch size | flip test | ensemble | MPJPE(mm) | model |
---|---|---|---|---|---|---|---|---|
original baseline | No | HM36 | ResNet-50 | - | No | No | 115.9 | |
+person box det. | Yes | HM36 | ResNet-50 | 256*256 | No | No | 86.5(25.4%) | |
+MPII data | Yes | HM36+MPII | ResNet-50 | 256*256 | No | No | 62.2(28.1%) | |
+deeper | Yes | HM36+MPII | ResNet-152 | 256*256 | No | No | 61.2(1.6%) | |
+larger image | Yes | HM36+MPII | ResNet-152 | 288*384 | No | No | 58.5(4.4%) | |
+COCO data | Yes | HM36+MPII+COCO | ResNet-152 | 288*384 | No | No | 57.5(1.7%) | download |
+flip test | Yes | HM36+MPII+COCO | ResNet-152 | 288*384 | Yes | No | 56.9(1.0%) | download |
+model ensemble | Yes | HM36+MPII+COCO | ResNet-152 | 288*384 | Yes | Yes | 55.3(2.8%) | download |
Train on CHALL_H80K train+val, evaluate on CHALL_H80K test.
description | box det. | dataset | backbone | patch size | flip test | ensemble | MPJPE(mm) | model |
---|---|---|---|---|---|---|---|---|
challenge result | Yes | HM36+MPII+COCO | ResNet-152 | 288*384 | Yes | Yes | 47 | download |
Environment
Python Version: 3.6
OS: CentOs7 (Other Linux system is also OK)
CUDA: 9.0 (least 8.0)
Installation
We recommend installing python from Anaconda, installing pytorch following guide on PyTorch according to your specific CUDA & python version. In addition, you need to install dependencies below.
pip install scipy
pip install matplotlib
pip install opencv-python
pip install easydict
pip install pyyaml
Preparation for Training & Testing
- Download Human3.6M(ECCV18 Challenge) image from Human3.6M Dataset
- Download MPII image from MPII Human Pose Dataset
- Download cache file from Dropbox
- Organize data like this
${PROJECT_ROOT}
`-- data
`-- mpii
|-- images
|-- annot
|-- mpii_train_cache
|-- mpii_valid_cache
`-- hm36
|-- images
|-- annot
|-- HM36_train_cache
|-- HM36_validmin_cache
`-- hm36_eccv_challenge
`-- Train
|-- IMG
|-- POSE
`-- Val
|-- IMG
|-- POSE
`-- Test
|-- IMG
|-- HM36_eccv_challenge_Train_cache
|-- HM36_eccv_challenge_Test_cache
|-- HM36_eccv_challenge_Val_cache
Usage
We have placed some example config files in experiments folder, and you can use them straight forward. Don't modify them unless you know exactly what it means.
Train
For Integral Human Pose Regression, cd to pytorch_projects/integral_human_pose
Integral Regression
python train.py --cfg=experiments/hm36/resnet50v1_ft/d-mh_ps-256_deconv256x3_min-int-l1_adam_bs32-4gpus_x300-270-290/lr1e-3.yaml --dataroot=../../data/
Direct Joint Regression
python train.py --cfg=experiments/hm36/resnet50v1_ft/d-mh_ps-256_dj_l1_adam_bs32-4gpus_x140-90-120/lr1e-3.yaml --dataroot=../../data/
For 3D pose estimation system of ECCV18 Challenge, cd to pytorch_projects/hm36_challenge
python train.py --cfg=experiments/hm36/resnet152v1_ft/d-mh_ps-256_deconv256x3_min-int-l1_adam_bs24-4gpus_x300-270-290/lr1e-3.yaml --dataroot=../../data/
By default, logging and model will be saved to log and output folder respectively.
Test
To run evaluation on CHALL_H80K Val dataset
- Download model
- Place it under $project_root/model/hm36_challenge
- cd to $project_root/pytorch_projects/hm36_challenge
- execute command below
python test.py --cfg experiments/hm36/resnet152v1_ft/d-mch_384x288_deconv256x3_min-int-l1_adam_bs12-4gpus/lr1e-4_x300-270-290.yaml --model=../../model/hm36_challenge/model_chall_train_152ft_384x288.pth.tar