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This repo will contain source code and materials for the TecoGAN project, i.e. code for a TEmporally COherent GAN
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This repository contains source code and materials for the TecoGAN project, i.e. code for a TEmporally COherent GAN for video super-resolution. Authors: Mengyu Chu, You Xie, Laura Leal-Taixe, Nils Thuerey. Technical University of Munich.

This repository so far contains the code for the TecoGAN inference and training. Data generation, i.e., download, will follow soon. Pre-trained models are also available below, you can find links for downloading and instructions below. The video and pre-print of our paper can be found here:

Video: Preprint:

TecoGAN teaser image

Additional Generated Outputs

Our method generates fine details that persist over the course of long generated video sequences. E.g., the mesh structures of the armor, the scale patterns of the lizard, and the dots on the back of the spider highlight the capabilities of our method. Our spatio-temporal discriminator plays a key role to guide the generator network towards producing coherent detail.




Running the TecoGAN Model

Below you can find a quick start guide for running a trained TecoGAN model. For further explanations of the parameters take a look at the file.
Note: evaluation (test case 2) currently requires an Nvidia GPU with CUDA. tkinter is also required and may be installed via the python3-tk package.

# Install tensorflow1.8+,
pip3 install --ignore-installed --upgrade tensorflow-gpu # or tensorflow
# Install PyTorch (only necessary for the metric evaluations) and other things...
pip3 install -r requirements.txt

# Download our TecoGAN model, the _Vid4_ and _TOS_ scenes shown in our paper and video.
python3 0

# Run the inference mode on the calendar scene.
# You can take a look of the parameter explanations in the, feel free to try other scenes!
python3 1 

# Evaluate the results with 4 metrics, PSNR, LPIPS[1], and our temporal metrics tOF and tLP with pytorch.
# Take a look at the paper for more details! 
python3 2

Train the TecoGAN Model

1. Prepare the Training Data

The training and validation dataset can be downloaded with the following commands into a chosen directory TrainingDataPath. Note: online video downloading requires youtube-dl.

# Install youtube-dl for online video downloading
pip install --user --upgrade youtube-dl

# take a look of the parameters first:
python3 --help

# To be on the safe side, if you just want to see what will happen, the following line won't download anything,
# and will only save information into log file.
# TrainingDataPath is still important, it the directory where logs are saved: TrainingDataPath/log/logfile_mmddHHMM.txt
python3 --start_id 2000 --duration 120 --disk_path TrainingDataPath --TEST

# This will create 308 subfolders under TrainingDataPath, each with 120 frames, from 28 online videos.
# It takes a long time.
python3 --start_id 2000 --duration 120 --REMOVE --disk_path TrainingDataPath

Once ready, please update the parameter TrainingDataPath in (for case 3 and case 4), and then you can start training with the downloaded data!

Note: most of the data (272 out of 308 sequences) are the same as the ones we used for the published models, but some (36 out of 308) are not online anymore. Hence the script downloads suitable replacements.

2. Train the Model

This section gives command to train a new TecoGAN model. Detail and additional parameters can be found in the file. Note: the tensorboard gif summary requires ffmpeg.

# Install ffmpeg for the  gif summary
sudo apt-get install ffmpeg # or conda install ffmpeg

# Train the TecoGAN model, based on our FRVSR model
# Please check and update the following parameters: 
# - VGGPath, it uses ./model/ by default. The VGG model is ca. 500MB
# - TrainingDataPath (see above)
# - in you can also adjust the output directory of the  testWhileTrain() function if you like (it will write into a train/ sub directory by default)
python3 3

# Train without Dst, (i.e. a FRVSR model)
python3 4

# View log via tensorboard
tensorboard --logdir='ex_TecoGANmm-dd-hh/log' --port=8008

Tensorboard GIF Summary Example



This work was funded by the ERC Starting Grant realFlow (ERC StG-2015-637014).
Part of the code is based on LPIPS[1], Photo-Realistic SISR[2] and gif_summary[3].


[1] The Unreasonable Effectiveness of Deep Features as a Perceptual Metric (LPIPS)
[2] Photo-Realistic Single Image Super-Resolution Using a Generative Adversarial Network
[3] gif_summary


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