This repository provide the code and model of our work:

Enriched CNN-Transformer Feature Aggregation Networks for Super-Resolution
Jinsu Yoo¹, Taehoon Kim², Sihaeng Lee², Seung Hwan Kim², Honglak Lee², Tae Hyun Kim^1
1Hanyang University, ²LG AI Research
WACV 2023

Recent transformer-based super-resolution (SR) methods have achieved promising results against conventional CNN-based methods. However, these approaches suffer from essential shortsightedness created by only utilizing the standard self-attention-based reasoning. In this paper, we introduce an effective hybrid SR network to aggregate enriched features, including local features from CNNs and long-range multi-scale dependencies captured by transformers. Specifically, our network comprises transformer and convolutional branches, which synergetically complement each representation during the restoration procedure. Furthermore, we propose a cross-scale token attention module, allowing the transformer branch to exploit the informative relationships among tokens across different scales efficiently. Our proposed method achieves state-of-the-art SR results on numerous benchmark datasets.

• Concept
• How to run
  • Installation
  • Quick test with pre-trained weights
  • Train model
  • Test model
• Citation
• Acknowledgement

# Clone this repo
git clone https://github.com/jinsuyoo/act.git
cd act

# Create and activate conda environment
conda env create -f environments.yaml
conda activate act

For training, please download imagenet dataset. The dataset should be like:

act
|--- datasets
      |--- imagenet
            |--- train
                  |--- n0xxxxxxx_x.JPEG
                  |--- n0xxxxxxx_0x.JPEG
                  |--- n0xxxxxxx_00x.JPEG
                  |--- ...
            |--- val
                  |--- ILSVR2012_val_000xxxxx.JPEG
                  |--- ILSVR2012_val_000xxxxx.JPEG
                  |--- ILSVR2012_val_000xxxxx.JPEG
                  |--- ...

For test with conventional datasets, some benchmark SR datasets can be downloaded from this repo.

Please place the datasets under './datasets' directory.

Following commands will automatically download the pretrained weights. The test results will be saved under './experiments/test/[save_path]'.

python test.py --release
               --task sr 
               --scale [2|3|4]
               --data_test [Set5|Set14|B100|Urban100|Manga109]
               --save_path [PATH TO SAVE THE RESULTS]

# Example) test x2 SR on Set5 dataset with pretrained weight
python test.py --release --task sr --scale 2 --data_test Set5 --save_path act_x2_set5

# Example) test x3 SR on Set14 dataset with pretrained weight
python test.py --release --task sr --scale 3 --data_test Set14 --save_path act_x3_set14

# Example) test x4 SR on B100 dataset with pretrained weight
python test.py --release --task sr --scale 4 --data_test B100 --save_path act_x4_b100

python train.py --gpus [NUM GPUS]
                --task [sr] 
                --scale [2|3|4]
                --batch_size [BATCH_SIZE_PER_GPU]
                --data_train [ImageNet]
                --data_test [Set14]
                --save_path [PATH TO SAVE THE RESULTS]

# Example) ddp training of x2 SR with 8 gpus
CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 python train.py --gpus 8 --task sr --scale 2 --batch_size 64 --data_test Set14 --save act_sr_x2 

python test.py --task sr 
               --scale [2|3|4]
               --data_test [Set5|Set14|B100|Urban100|Manga109]
               --ckpt_path [PATH TO YOUR CHECKPOINT]
               --save_path [PATH TO SAVE THE RESULTS]

If you find our work useful in your research, please consider citing our paper:

@inproceedings{yoo2023act,
  title={Enriched CNN-Transformer Feature Aggregation Networks for Super-Resolution},
  author={Yoo, Jinsu and Kim, Taehoon and Lee, Sihaeng and Kim, Seung Hwan and Lee, Honglak and Kim, Tae Hyun},
  booktitle={Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)},
  year={2023}
}

The codes are based on:

• EDSR-PyTorch
• RCAN
• Pretrained-IPT
• ResizeRight
• vit-pytorch
• SwinIR

Thanks for open sourcing such a wonderful works!