CRNet

PyTorch implementation of CRNet. Our model achievied third place in track 1 of the Bracketing Image Restoration and Enhancement Challenge.

1. Abstract

It is challenging but highly desired to acquire high-quality photos with clear content in low-light environments. Although multi-image processing methods (using burst, dual-exposure, or multi-exposure images) have made significant progress in addressing this issue, they typically focus exclusively on specific restoration or enhancement tasks, being insufficient in exploiting multi-image. Motivated by that multi-exposure images are complementary in denoising, deblurring, high dynamic range imaging, and super-resolution, we propose to utilize bracketing photography to unify restoration and enhancement tasks in this work. Due to the difficulty in collecting real-world pairs, we suggest a solution that first pre-trains the model with synthetic paired data and then adapts it to real-world unlabeled images. In particular, a temporally modulated recurrent network (TMRNet) and self-supervised adaptation method are proposed. Moreover, we construct a data simulation pipeline to synthesize pairs and collect real-world images from 200 nighttime scenarios. Experiments on both datasets show that our method performs favorably against the state-of-the-art multi-image processing ones.

2. Overview of CRNet

3. Comparison of other methods in track 1 of the Bracketing Image Restoration and Enhancement Challenge.

4. Expample Result

5. Checkpoint

https://pan.baidu.com/s/17DDXbthjvLjyoHOnUzw-hg?pwd=g1nw

6. Dataset

The download link for the dataset is https://github.com/cszhilu1998/BracketIRE.