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Joint-attention Discriminator for Accurate Super-resolution via Adversarial Training
- Source :
- ACM Multimedia
- Publication Year :
- 2019
- Publisher :
- ACM, 2019.
-
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.
- Subjects :
- Discriminator
Visual perception
Joint attention
Computer science
business.industry
Pattern recognition
02 engineering and technology
010501 environmental sciences
01 natural sciences
Superresolution
Weighting
Feature (computer vision)
0202 electrical engineering, electronic engineering, information engineering
Benchmark (computing)
020201 artificial intelligence & image processing
Artificial intelligence
business
0105 earth and related environmental sciences
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Proceedings of the 27th ACM International Conference on Multimedia
- Accession number :
- edsair.doi...........7848e3eef1b44f708ca06ffc069fc231