Title
Joint-attention Discriminator for Accurate Super-resolution via Adversarial Training
Abstract
Tremendous progress has been witnessed on single image super-resolution (SR), where existing deep SR models achieve impressive performance in objective criteria, e.g., PSNR and SSIM. However, most of the SR methods are limited in visual perception, for example, they look too smooth. Generative adversarial network (GAN) favors SR visual effects over most of the deep SR models but is poor in objective criteria. In order to trade off the objective and subjective SR performance, we design a joint-attention discriminator with which GAN improves the SR performance in PSNR and SSIM, as well as maintaining the visual effect compared with non-attention GAN based SR models. The joint-attention discriminator contains dense channel-wise attention and cross-layer attention blocks. The former is applied in the shallow layers of the discriminator for channel-wise weighting combination of feature maps. The latter is employed to select feature maps in some middle and deep layers for effective discrimination. Extensive experiments are conducted on six benchmark datasets and the experimental results show that our proposed discriminator combining with different generators can achieve more realistic visual performances.
Year
DOI
Venue
2019
10.1145/3343031.3351008
Proceedings of the 27th ACM International Conference on Multimedia
Keywords
Field
DocType
cross-layer attention, dense channel-wise attention, generative adversarial network, image super-resolution, joint-attention discriminator
Computer vision,Discriminator,Joint attention,Computer science,Artificial intelligence,Superresolution,Adversarial system
Conference
ISBN
Citations 
PageRank 
978-1-4503-6889-6
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Rong Chen15510.48
Yuan Xie240727.48
Xiaotong Luo332.42
Yanyun Qu421638.66
Cui-Hua Li57413.24