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This repository contains my personal code for the paper Learning Spatiotemporal Features with 3D Convolutional Networks by Du Tran, Lubomir Bourdev, Rob Fergus, Lorenzo Torresani, Manohar Paluri.

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C3D

This repository contains my personal code for the paper Learning Spatiotemporal Features with 3D Convolutional Networks by Du Tran, Lubomir Bourdev, Rob Fergus, Lorenzo Torresani, Manohar Paluri.

C3D model is implemented in PyTorch (1.12.1) and PyTorch Lightning (2.0.8). Currently, the code supports training on UCF101.

Installation

The code was tested with Python 3.9.17 and Anaconda. To install the dependencies, run:

conda env create -f environment.yml
conda activate c3d

Dataset

Create a directory called dataset and download the UCF101 dataset.

mkdir dataset
cd dataset

To download the UCF101 dataset, run:

wget https://www.crcv.ucf.edu/data/UCF101/UCF101.rar --no-check-certificate

Make sure that dataset directory has the following structure:

UCF-101
├── ApplyEyeMakeup
│   ├── v_ApplyEyeMakeup_g01_c01.avi
│   └── ...
├── ApplyLipstick
│   ├── v_ApplyLipstick_g01_c01.avi
│   └── ...
└── Archery
│   ├── v_Archery_g01_c01.avi
│   └── ...

After run the tests to make sure everything is working:

pytest -q test/test.py

It will take a while to run the tests, because it will preprocess the dataset.

Pre-Trained Model

Create a directory called models, download the pre-trained model and put it inside the models directory.

Training

To train the model, run:

python train.py

Usage: train.py [OPTIONS]

Options:
  --dataset TEXT               This is the dataset name.
  --epochs INTEGER             This is the number of epochs.
  --test                       This is the test flag.
  --snapshot_interval INTEGER  This is the snapshot interval.
  --batch_size INTEGER         This is the batch size.
  --lr FLOAT                   This is the learning rate.
  --num_workers INTEGER        This is the number of workers.
  --clip_len INTEGER           This is the clip length.
  --preprocess BOOLEAN         This is the preprocess flag.
  --pretrained TEXT            This is the pretrained model path.
  --root_dir TEXT              This is the root directory of the dataset.
  --output_dir TEXT            This is the output directory.
  --device TEXT                This is the device.
  --seed INTEGER               This is the seed.
  --wandb_log                  This is the wandb flag.
  --checkpoint TEXT            This is the checkpoint path.
  --help                       Show this message and exit.

The training support logging with WandB. To enable logging, run:

python train.py --wandb_log

Test

To test the model, run:

python train.py --test --epochs 0 --pretrained <path_to_pretrained_model>

Inference

To infer the model, run:

python inference.py

Usage: inference.py [OPTIONS]

Options:
  --video TEXT    This is the video path.
  --output TEXT   This is the output folder.
  --device TEXT   This is the device to be used.
  -m TEXT         This is the model path.
  --classes TEXT  This is the classes path.
  --help          Show this message and exit.

Results

The model was trained for $100$ epochs with a batch size of $100$ and a learning rate of $1e-3$. A NVIDIA TESLA V100 GPU was used for training. The model achieved a top-1 accuracy of $90.8%$.

References

@inproceedings{tran2015learning,
  title={Learning spatiotemporal features with 3d convolutional networks},
  author={Tran, Du and Bourdev, Lubomir and Fergus, Rob and Torresani, Lorenzo and Paluri, Manohar},
  booktitle={Proceedings of the IEEE international conference on computer vision},
  pages={4489--4497},
  year={2015}
}

About

This repository contains my personal code for the paper Learning Spatiotemporal Features with 3D Convolutional Networks by Du Tran, Lubomir Bourdev, Rob Fergus, Lorenzo Torresani, Manohar Paluri.

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