A Review of Single Image Super-Resolution Reconstruction Based on Deep Learning

Image super-resolution reconstruction is one of the basic image processing techniques in computer vision, which can not only improve image resolution and image quality, but also assist other computer vision tasks. In recent years, with the rise of artificial intelligence, deep-learning-based image super-resolution reconstruction has also made remarkable progress. Based on a brief description of the image super-resolution reconstruction methodology, this paper comprehensive⁃ ly reviews the technical architecture and research process of deep-learning-based single image super-resolution reconstruc⁃ tion, including the method of datasets construction, the basic framework of the network model, the subjective and objective evaluation metrics for image quality evaluation. The methods based on convolutional neural networks, generative adversari⁃ al networks and Transformer, which are divided according to network structure and image reconstruction effect are mainly introduced, and related network models are reviewed and compared. Finally, the future development trend of image super-resolution reconstruction is prospected according to the related content of network model and super-resolution reconstruc⁃ tion challenges. © 2022 Chinese Institute of Electronics. All rights reserved.