FQSR

Official codes for ACMMM 2021 paper "Fully Quantized Image Super-Resolution Networks".

https://arxiv.org/abs/2011.14265

Installation

Python 3.6.5

torch 1.2.0

torchvision 0.4.0

For more requirements, please refer to requirements.txt

Data Preparation

Followed the existing SR settings, the models are trained on DIV2K dataset and it can be downloaded from here (7.1GB).

For model evaluation, the benchmark datasets (250MB) can be downloaded from the hyper-link provided. It includes Set5, Set14, B100 and Urban100. We also adopted the DIV2K photo id from 801 to 900 for DIV2K dataset evaluation.

The data path can be changed in train.sh

Model Training

For full-precision SRResNet model training,

CUDA_VISIBLE_DEVICES=0 bash train.sh config/config.baseline.train-scratch.div2k.fp.srresnet $name

For FQSR model training (SRResNet-based),

CUDA_VISIBLE_DEVICES=0 bash train.sh config/config.lsq.finetune.div2k.bit.srresnet $name

In order to receive the most promising results, the resume from full-precision can be specified in the corresponding config/config.lsq.finetune.div2k.bit.srresnet file.

Similarly, for full-precision EDSR model training,

CUDA_VISIBLE_DEVICES=0 bash train.sh config/config.baseline.train-scratch.div2k.fp.edsr $name

For FQSR model training (EDSR-based),

CUDA_VISIBLE_DEVICES=0 bash train.sh config/config.lsq.finetune.div2k.bit.edsr $name

Model Evaluation

For model evaluation, the resume path of the tested model can be specified in the corresponding config/config.lsq.finetune.div2k.bit.srresnet file. Remember to turn on the --test_only option.

Enjoy!!

Citation

If this respository is useful for your research, please consider citing:

@article{wang2020fully,
  title={Fully Quantized Image Super-Resolution Networks},
  author={Wang, Hu and Chen, Peng and Zhuang, Bohan and Shen, Chunhua},
  journal={arXiv preprint arXiv:2011.14265},
  year={2020}
}

Acknowledgement

Part of the code is revised from the EDSR and SRResNet.