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https://github.com/xuchaoxi/video-cnn-feat
https://github.com/xuchaoxi/video-cnn-feat
Last synced: 3 months ago
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- Host: GitHub
- URL: https://github.com/xuchaoxi/video-cnn-feat
- Owner: xuchaoxi
- Created: 2019-11-17T07:58:14.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2022-06-22T02:53:56.000Z (over 2 years ago)
- Last Synced: 2024-07-24T23:02:05.213Z (4 months ago)
- Language: Python
- Size: 1.77 MB
- Stars: 31
- Watchers: 4
- Forks: 9
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
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- awesome-video-text-retrieval - Extracting CNN features from video frames by MXNet
README
# Extracting CNN features from video frames by MXNet
The `video-cnn-feat` toolbox provides python code and scripts for extracting CNN features from video frames by pre-trained [MXNet](http://mxnet.incubator.apache.org/) models. We have used this toolbox for our [winning solution](https://www-nlpir.nist.gov/projects/tvpubs/tv18.papers/rucmm.pdf) at TRECVID 2018 ad-hoc video search (AVS) task and in our [W2VV++](https://dl.acm.org/citation.cfm?doid=3343031.3350906) paper.
## Requirements
### Environments
* Ubuntu 16.04
* CUDA 9.0
* python 2.7
* opencv-python
* mxnet-cu90
* numpy
We used virtualenv to setup a deep learning workspace that supports MXNet. Run the following script to install the required packages.
```
virtualenv --system-site-packages ~/cnn_feat
source ~/cnn_feat/bin/activate
pip install -r requirements.txt
deactivate
```
### MXNet models
#### 1. ResNet-152 from the MXNet model zoo
```
# Download resnet-152 model pre-trained on imagenet-11k
./do_download_resnet152_11k.sh
# Download resnet-152 model pre-trained on imagenet-1k
./do_download_resnet152_1k.sh
```
#### 2. ResNeXt-101 from MediaMill, University of Amsterdam
Send a request to `xirong ATrucDOTeduDOTcn` for the model link. Please read the [ImageNet Shuffle](https://dl.acm.org/citation.cfm?id=2912036) paper for technical details.
## Get started
Our code assumes the following data organization. We provide the `toydata` folder as an example.
```
collection_name
+ VideoData
+ ImageData
+ id.imagepath.txt
```
The `toydata` folder is assumed to be placed at `$HOME/VisualSearch/`. Video files are stored in the `VideoData` folder. Frame files are in the `ImageData`folder.
+ Video filenames shall end with `.mp4`, `.avi`, `.webm`, or `.gif`.
+ Frame filenames shall end with `.jpg`.
Feature extraction for a given video collection is performed in the following four steps. ***Skip the first step if frames are already there***.
### Step 1. Extract frames from videos
```
collection=toydata
./do_extract_frames.sh $collection
```
### Step 2. Extract frame-level CNN features
```
./do_resnet152-11k.sh $collection
./do_resnet152-1k.sh $collection
./do_resnext101.sh $collection
```
### Step 3. Obtain video-level CNN features (by mean pooling over frames)
```
./do_feature_pooling.sh $collection pyresnet-152_imagenet11k,flatten0_output,os
./do_feature_pooling.sh $collection pyresnet-152_imagenet1k,flatten0_output,os
./do_feature_pooling.sh $collection pyresnext-101_rbps13k,flatten0_output,os
```
### Step 4. Feature concatenation
```
featname=pyresnext-101_rbps13k,flatten0_output,os+pyresnet-152_imagenet11k,flatten0_output,os
./do_concat_features.sh $collection $featname
```
# Acknowledgements
This project was supported by the National Natural Science Foundation of China (No. 61672523).
## References
If you find the package useful, please consider citing our MM'19 paper:
```
@inproceedings{li2019w2vv++,
title={W2VV++: Fully Deep Learning for Ad-hoc Video Search},
author={Li, Xirong and Xu, Chaoxi and Yang, Gang and Chen, Zhineng and Dong, Jianfeng},
booktitle={Proceedings of the 27th ACM International Conference on Multimedia},
pages={1786--1794},
year={2019}
}
```