Accurate Image Super-Resolution Using
Very Deep Convolutional Networks

Authors

Jiwon Kim
Jung Kwon Lee
Kyoung Mu Lee

Abstract

We present a highly accurate single-image super-resolution (SR) method. Our method uses a very deep convolutional network inspired by VGG-net used for ImageNet classification. We find increasing our network depth shows a significant improvement in accuracy. Our final model uses 20 weight layers. By cascading small filters many times in a deep network structure, contextual information over large image regions is exploited in an efficient way. With very deep networks, however, convergence speed becomes a critical issue during training. We propose a simple yet effective training procedure. We learn residuals only and use extremely high learning rates (104 times higher than SRCNN) enabled by adjustable gradient clipping. Our proposed method performs better than existing methods in accuracy and visual improvements in our results are easily noticeable.

Paper

pdf

Slide

PPT

Results

zip

Train/Test Data

zip(train)

zip(test)

Code

zip

Citation

Bibtex
Jiwon Kim, Jung Kwon Lee and Kyoung Mu Lee, "Accurate Image Super-Resolution Using Very Deep Convolutional Networks", Proc. of IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2016.

Qualitative results

Benchmark results

Red color indicates the best performance and blue color indicates the second best performance.