English

Densely Residual Laplacian Super-Resolution

Image and Video Processing 2019-07-02 v2 Computer Vision and Pattern Recognition

Abstract

Super-Resolution convolutional neural networks have recently demonstrated high-quality restoration for single images. However, existing algorithms often require very deep architectures and long training times. Furthermore, current convolutional neural networks for super-resolution are unable to exploit features at multiple scales and weigh them equally, limiting their learning capability. In this exposition, we present a compact and accurate super-resolution algorithm namely, Densely Residual Laplacian Network (DRLN). The proposed network employs cascading residual on the residual structure to allow the flow of low-frequency information to focus on learning high and mid-level features. In addition, deep supervision is achieved via the densely concatenated residual blocks settings, which also helps in learning from high-level complex features. Moreover, we propose Laplacian attention to model the crucial features to learn the inter and intra-level dependencies between the feature maps. Furthermore, comprehensive quantitative and qualitative evaluations on low-resolution, noisy low-resolution, and real historical image benchmark datasets illustrate that our DRLN algorithm performs favorably against the state-of-the-art methods visually and accurately.

Keywords

Cite

@article{arxiv.1906.12021,
  title  = {Densely Residual Laplacian Super-Resolution},
  author = {Saeed Anwar and Nick Barnes},
  journal= {arXiv preprint arXiv:1906.12021},
  year   = {2019}
}
R2 v1 2026-06-23T10:06:17.230Z