AutoVideo: An Automated Video Action Recognition System
AutoVideo is a system for automated video analysis. It is developed based on D3M infrastructure, which describes machine learning with generic pipeline languages. Currently, it focuses on video action recognition, supporting various state-of-the-art video action recognition algorithms. It also supports automated model selection and hyperparameter tuning. AutoVideo is developed by DATA Lab at Texas A&M University.
- Paper: https://arxiv.org/abs/2108.04212
- Tutorial: [Towards Data Science] AutoVideo: An Automated Video Action Recognition System
- Related Project: TODS: Automated Time-series Outlier Detection System
There are some other video analysis libraries out there, but this one is designed to be highly modular. AutoVideo is highly extendible thanks to the pipeline language, where each model is wrapped as a primitive with some hyperparameters. This allows us to easily support other algorithms for other video analysis tasks, which will be our future efforts. It is also convenient to search models and hyperparameters with the pipeline language.
An overview of the library is shown as below. Each module in AutoVideo is wrapped as a primitive with some hyperparameters. A pipeline consists of a series of primitives from pre-processing to action recognition. AutoVideo is equipped with tuners to search models and hyperparameters. We welcome contributions to enrich AutoVideo with more primitives. You can find instructions in Contributing Guide.
Cite this work
If you find this repo useful, you may cite:
Zha, Daochen, et al. "AutoVideo: An Automated Video Action Recognition System." arXiv preprint arXiv:2108.0421 (2021).
@article{zha2021autovideo,
title={AutoVideo: An Automated Video Action Recognition System},
author={Zha, Daochen and Bhat, Zaid and Chen, Yi-Wei and Wang, Yicheng and Ding, Sirui and Jain, Anmoll and Bhat, Mohammad and Lai, Kwei-Herng and Chen, Jiaben and Zou, Na and Hu, Xia},
journal={arXiv preprint arXiv:2108.04212},
year={2021}
}
Installation
Make sure that you have Python 3.6 and pip installed. Currently the code is only tested in Linux system. First, install torch and torchvision with
pip3 install torch
pip3 install torchvision
To use the automated searching, you need to install ray-tune and hyperopt with
pip3 install 'ray[tune]' hyperopt
We recommend installing the stable version of autovideo with pip:
pip3 install autovideo
Alternatively, you can clone the latest version with
git clone https://github.com/datamllab/autovideo.git
Then install with
cd autovideo
pip3 install -e .
Toy Examples
To try the examples, you may download hmdb6 dataset, which is a subset of hmdb51 with only 6 classes. All the datasets can be downloaded from Google Drive. Then, you may unzip a dataset and put it in datasets.
Fitting and saving a pipeline
python3 examples/fit.py
Some important hyperparameters are as follows.
--alg: the supported algorithm. Currently we supporttsn,tsm,i3d,eco,eco_full,c3d,r2p1d, andr3d.--pretrained: whether loading pre-trained weights and fine-tuning.--gpu: which gpu device to use. Empty string for CPU.--data_dir: the directory of the dataset--log_dir: the path for sainge the log--save_dir: the path for saving the fitted pipeline
Loading a fitted pipeline and producing predictions
After fitting a pipeline, you can load a pipeline and make predictions.
python3 examples/produce.py
Some important hyperparameters are as follows.
--gpu: which gpu device to use. Empty string for CPU.--data_dir: the directory of the dataset--log_dir: the path for saving the log--load_dir: the path for loading the fitted pipeline
Loading a fitted pipeline and recogonizing actions
After fitting a pipeline, you can also make predicitons on a single video. As a demo, you may download the fitted pipeline and the demo video from Google Drive. Then, you can use the following command to recogonize the action in the video:
python3 examples/recogonize.py
Some important hyperparameters are as follows.
--gpu: which gpu device to use. Empty string for CPU.--video_path: the path of video file--log_dir: the path for saving the log--load_dir: the path for loading the fitted pipeline
Fitting and producing a pipeline
Alternatively, you can do fit and produce without saving the model with
python3 examples/fit_produce.py
Some important hyperparameters are as follows.
--alg: the supported algorithm.--pretrained: whether loading pre-trained weights and fine-tuning.--gpu: which gpu device to use. Empty string for CPU.--data_dir: the directory of the dataset--log_dir: the path for saving the log
Automated searching
In addition to running them by yourself, we also support automated model selection and hyperparameter tuning:
python3 examples/search.py
Some important hyperparameters are as follows.
--alg: the searching algorithm. Currently, we supportrandomandhyperopt.--num_samples: the number of samples to be tried--gpu: which gpu device to use. Empty string for CPU.--data_dir: the directory of the dataset
Supported Algorithms
Advanced Usage
Beyond the above examples, you can also customize the configurations.
Configuring the hypereparamters
Each model in AutoVideo is wrapped as a primitive, which contains some hyperparameters. An example of TSN is here. All the hyperparameters can be specified when building the pipeline by passing a config dictionary. See examples/fit.py.
Configuring the search space
The tuner will search the best hyperparamter combinations within a search sapce to improve the performance. The search space can be defined with ray-tune. See examples/search.py.
Preparing datasets and benchmarking
The datasets must follow d3m format, which consists of a csv file and a media folder. The csv file should have three columns to specify the instance indices, video file names and labels. An example is as below
d3mIndex,video,label
0,Aussie_Brunette_Brushing_Hair_II_brush_hair_u_nm_np1_ri_med_3.avi,0
1,brush_my_hair_without_wearing_the_glasses_brush_hair_u_nm_np1_fr_goo_2.avi,0
2,Brushing_my_waist_lenth_hair_brush_hair_u_nm_np1_ba_goo_0.avi,0
3,brushing_raychel_s_hair_brush_hair_u_cm_np2_ri_goo_2.avi,0
4,Brushing_Her_Hair__[_NEW_AUDIO_]_UPDATED!!!!_brush_hair_h_cm_np1_le_goo_1.avi,0
5,Haarek_mmen_brush_hair_h_cm_np1_fr_goo_0.avi,0
6,Haarek_mmen_brush_hair_h_cm_np1_fr_goo_1.avi,0
7,Prelinger_HabitPat1954_brush_hair_h_nm_np1_fr_med_26.avi,0
8,brushing_hair_2_brush_hair_h_nm_np1_ba_med_2.avi,0
The media folder should contain video files. You may refer to our example hmdb6 dataset in Google Drive. We have also prepared hmdb51 and ucf101 in the Google Drive for benchmarking. Please read benchmark for more details. For some of the algorithms (C3D, R2P1D and R3D), if you want to load the pre-trained weights and fine-tune, you need to download the weights from Google Drive and put it to weights.
Acknowledgement
We gratefully acknowledge the Data Driven Discovery of Models (D3M) program of the Defense Advanced Research Projects Agency (DARPA).
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