CLIP4Clip: An Empirical Study of CLIP for End to End Video Clip Retrieval

The implementation of paper CLIP4Clip: An Empirical Study of CLIP for End to End Video Clip Retrieval.

CLIP4Clip is a video-text retrieval model based on CLIP (ViT-B/32). We investigate three similarity calculation approaches: parameter-free type, sequential type, and tight type, in this work. The model achieve SOTA results on MSR-VTT, MSVC, and LSMDC.

Requirement

# From CLIP 
conda install --yes -c pytorch pytorch=1.7.1 torchvision cudatoolkit=11.0
pip install ftfy regex tqdm
pip install opencv-python boto3 requests pandas

Data Preparing

For MSRVTT

The official data and video links can be found in link.

For the convenience, you can also download the splits and captions by,

wget https://github.com/ArrowLuo/CLIP4Clip/releases/download/v0.0/msrvtt_data.zip

For MSVD

Raw videos can be download from link.

The splits and raw_captions can be found in the wonderful job collaborative-experts. For the convenience, you can also download them by,

wget https://github.com/ArrowLuo/CLIP4Clip/releases/download/v0.0/msvd_data.zip

For LSMDC

You must obtain permission from MPII to download and use the data. The download link is here. The 1000 test clips data is link. Read our paper and the dataloader for more information.

How to Run

--features_path is the video root path

--linear_patch can be set with 2d or 3d

--sim_header can be set with meanP, seqLSTM, seqTransf, or tightTransf

read our paper for more details on --linear_patch and --sim_header. Test more hyperparameters for better performance.

Download CLIP (ViT-B/32) weight,

 wget -P ./modules https://openaipublic.azureedge.net/clip/models/40d365715913c9da98579312b702a82c18be219cc2a73407c4526f58eba950af/ViT-B-32.pt

Then, run

MSRVTT

DATA_PATH=[Your MSRVTT data and videos path]
python -m torch.distributed.launch --nproc_per_node=4 \
main_task_retrieval.py --do_train --num_thread_reader=0 \
--epochs=5 --batch_size=128 --n_display=50 \
--train_csv ${DATA_PATH}/MSRVTT_train.9k.csv \
--val_csv ${DATA_PATH}/MSRVTT_JSFUSION_test.csv \
--data_path ${DATA_PATH}/MSRVTT_data.json \
--features_path ${DATA_PATH}/MSRVTT_Videos \
--output_dir ckpts/ckpt_msrvtt_retrieval_looseType \
--lr 1e-4 --max_words 32 --max_frames 12 --batch_size_val 16 \
--datatype msrvtt --expand_msrvtt_sentences  \
--feature_framerate 1 --coef_lr 1e-3 \
--freeze_layer_num 0  --slice_framepos 2 \
--loose_type --linear_patch 2d --sim_header meanP

MSVD

DATA_PATH=[Your MSVD data and videos path]
python -m torch.distributed.launch --nproc_per_node=4 \
main_task_retrieval.py --do_train --num_thread_reader=2 \
--epochs=5 --batch_size=128 --n_display=50 \
--data_path ${DATA_PATH} \
--features_path ${DATA_PATH}/MSVD_Videos \
--output_dir ckpts/ckpt_msvd_retrieval_looseType \
--lr 1e-4 --max_words 32 --max_frames 12 --batch_size_val 16 \
--datatype msvd \
--feature_framerate 1 --coef_lr 1e-3 \
--freeze_layer_num 0 --slice_framepos 2 \
--loose_type --linear_patch 2d --sim_header meanP

LSMDC

DATA_PATH=[Your LSMDC data and videos path]
python -m torch.distributed.launch --nproc_per_node=4 \
main_task_retrieval.py --do_train --num_thread_reader=2 \
--epochs=5 --batch_size=128 --n_display=50 \
--data_path ${DATA_PATH} \
--features_path ${DATA_PATH}/LSMDC_Videos \
--output_dir ckpts/ckpt_lsmdc_retrieval_looseType \
--lr 1e-4 --max_words 32 --max_frames 12 --batch_size_val 16 \
--datatype lsmdc --feature_framerate 1 --coef_lr 1e-3 \
--freeze_layer_num 0  --slice_framepos 2 \
--loose_type --linear_patch 2d --sim_header meanP

Citation

If you find CLIP4Clip useful in your work, you can cite the following paper:

@Article{Luo2021CLIP4Clip,
  author  = {Huaishao Luo and Lei Ji and Ming Zhong and Yang Chen and Wen Lei and Nan Duan and Tianrui Li},
  title   = {CLIP4Clip: An Empirical Study of CLIP for End to End Video Clip Retrieval},
  journal = {arXiv preprint arXiv:2104.08860},
  year    = {2021},
}

Acknowledgments

Our code is based on CLIP (ViT-B/32) and UniVL.