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# Data Preparation for THUMOS14
## Download Annotations
You can download the annotation by
```bash
bash download_annotation.sh
```
The annotation should be in `data/thumos-14/annotations/`.
- Following previous work such as G-TAD/VSGN, two videos are removed from the THUMOS14 validation set. (`video_test_0000270` due to wrong annotations, `video_test_0001292` due to empty annotations). Therefore, there are total 211 videos left in test subset. In this codebase, we use this annotation file to conduct all THUMOS-related experiments for a fair comparison.
## Download Pre-extracted Features
Please put the downloaded feature under the path: `data/thumos-14/features/`.
We provide the following pre-extracted features for THUMOS14:
| Feature | Url | Backbone | Feature Extraction Setting |
| :-------------: | :----------------------------------------------------------------------------------------------------------------------------------------------------: | :----------------------: | :------------------------------------------------: |
| i3d | [Google Drive](https://drive.google.com/file/d/1bxpfdFRQNCFlQ39aIocLjSt0C6_M6t6N/view?usp=sharing) | I3D (two stream) | snippet_stride=4, extracted by ActionFormer |
| tsn | [Google Drive](https://drive.google.com/file/d/1z5s8WTwZCXkGFRCT0jhyJhcJEGcGGcTx/view?usp=sharing) | TSN (two stream) | snippet_stride=1, extracted by G-TAD |
| slowfast_r50 | [Google Drive](https://drive.google.com/file/d/1ORcNmUcPXezDtOfCPawuTf6UkiQ--PQv/view?usp=sharing) | SlowFast-R50-8x8x1 | snippet_stride=4, clip_length=32, frame_interval=1 |
| slowfast_r101 | [Google Drive](https://drive.google.com/file/d/1L5WT2Qo-ZZ2sBtgv4uYXUHE8w5CGy5dy/view?usp=sharing) | SlowFast-R101-8x8x1 | snippet_stride=4, clip_length=32, frame_interval=1 |
| videomae_b | [Google Drive](https://drive.google.com/file/d/1qI20zPzjJ5rHz1G9QyJEksfw-QW9oSVu/view?usp=sharing) | VideoMAE-B-16x4x1 | snippet_stride=4, clip_length=16, frame_interval=1 |
| videomae_l | [Google Drive](https://drive.google.com/file/d/1-qHD6s8w21TCeExp9DPtAGX409OjwW18/view?usp=sharing) | VideoMAE-L-16x4x1 | snippet_stride=4, clip_length=16, frame_interval=1 |
| videomae_h | [InternVideo Repo](https://github.com/OpenGVLab/InternVideo/tree/main/Downstream/Temporal-Action-Localization#to-reproduce-our-results-of-internvideo) | VideoMAE-H-K700-16x4x1 | snippet_stride=4, clip_length=16, frame_interval=1 |
| videomaev2_g | [Google Drive](https://drive.google.com/file/d/1FRoCz_ZS13faRLN6ocfwghsmIsENLz7_/view?usp=sharing) | VideoMAEv2-g-K710-16x4x1 | snippet_stride=4, clip_length=16, frame_interval=1 |
| internvideo2_6b | [Official Repo](https://github.com/OpenGVLab/video-mamba-suite/blob/main/video-mamba-suite/temporal-action-localization/README.md) | InternVideo2-6B | snippet_stride=4, clip_length=16, frame_interval=1 |
## Download Raw Videos
Please put the downloaded video under the path: `data/thumos-14/raw_data/`.
You can download the raw video from [official website](https://www.crcv.ucf.edu/THUMOS14/download.html), or download from this [Google Drive](https://drive.google.com/file/d/1cbwDvIk4DsM5uSZJpGDfjGu4ZeZhftgK/view?usp=sharing).
## Citation
```BibTeX
@misc{THUMOS14,
author = {Jiang, Y.-G. and Liu, J. and Roshan Zamir, A. and Toderici, G. and Laptev,
I. and Shah, M. and Sukthankar, R.},
title = {{THUMOS} Challenge: Action Recognition with a Large
Number of Classes},
howpublished = "\url{http://crcv.ucf.edu/THUMOS14/}",
Year = {2014}
}
``` |