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22. Shortening acquisition time and reducing the motion-artifact are two of the most critical issues in MRI. As a promising solution, high-quality MRI image restoration provides a new approach to achieve higher resolution without costing…

Image and Video Processing · Electrical Eng. & Systems 2021-02-02 Hao Li , Jianan Liu

Image super-resolution (SR) is a technique to recover lost high-frequency information in low-resolution (LR) images. Spatial-domain information has been widely exploited to implement image SR, so a new trend is to involve frequency-domain…

Image and Video Processing · Electrical Eng. & Systems 2022-12-09 Jing Fang , Yinbo Yu , Zhongyuan Wang , Xin Ding , Ruimin Hu

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 \cite{simonyan2015very}. We find increasing our network depth…

Computer Vision and Pattern Recognition · Computer Science 2016-11-14 Jiwon Kim , Jung Kwon Lee , Kyoung Mu Lee

Previous studies in blind super-resolution (BSR) have primarily concentrated on estimating degradation kernels directly from low-resolution (LR) inputs to enhance super-resolution. However, these degradation kernels, which model the…

Image and Video Processing · Electrical Eng. & Systems 2025-07-21 Huu-Phu Do , Po-Chih Hu , Hao-Chien Hsueh , Che-Kai Liu , Vu-Hoang Tran , Ching-Chun Huang

We consider the single image super-resolution (SISR) problem, where a high-resolution (HR) image is generated based on a low-resolution (LR) input. Recently, generative adversarial networks (GANs) become popular to hallucinate details. Most…

Image and Video Processing · Electrical Eng. & Systems 2021-12-30 Wenbo Li , Kun Zhou , Lu Qi , Liying Lu , Nianjuan Jiang , Jiangbo Lu , Jiaya Jia

Traditionally, the main focus of image super-resolution techniques is on recovering the most likely high-quality images from low-quality images, using a one-to-one low- to high-resolution mapping. Proceeding that way, we ignore the fact…

Image and Video Processing · Electrical Eng. & Systems 2021-02-15 Mohamed Abderrahmen Abid , Ihsen Hedhli , Christian Gagné

We propose a deep learning method for single image super-resolution (SR). Our method directly learns an end-to-end mapping between the low/high-resolution images. The mapping is represented as a deep convolutional neural network (CNN) that…

Computer Vision and Pattern Recognition · Computer Science 2015-08-03 Chao Dong , Chen Change Loy , Kaiming He , Xiaoou Tang

Most of the existing learning-based single image superresolution (SISR) methods are trained and evaluated on simulated datasets, where the low-resolution (LR) images are generated by applying a simple and uniform degradation (i.e., bicubic…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Jianrui Cai , Hui Zeng , Hongwei Yong , Zisheng Cao , Lei Zhang

While burst LR images are useful for improving the SR image quality compared with a single LR image, prior SR networks accepting the burst LR images are trained in a deterministic manner, which is known to produce a blurry SR image. In…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Kyotaro Tokoro , Kazutoshi Akita , Norimichi Ukita

In this paper, we present a medical AttentIon Denoising Super Resolution Generative Adversarial Network (AID-SRGAN) for diographic image super-resolution. First, we present a medical practical degradation model that considers various…

Image and Video Processing · Electrical Eng. & Systems 2022-12-23 Yongsong Huang , Qingzhong Wang , Shinichiro Omachi

Data augmentation is essential for medical research to increase the size of training datasets and achieve better results. In this work, we experiment three GAN architectures with different loss functions to generate new brain MRIs. The…

Image and Video Processing · Electrical Eng. & Systems 2020-02-10 Antoine Delplace

Deep learning-based single image super-resolution enables very fast and high-visual-quality reconstruction. Recently, an enhanced super-resolution based on generative adversarial network (ESRGAN) has achieved excellent performance in terms…

Image and Video Processing · Electrical Eng. & Systems 2019-11-21 Chih-Chung Hsu , Chia-Hsiang Lin

Digital Rock Imaging is constrained by detector hardware, and a trade-off between the image field of view (FOV) and the image resolution must be made. This can be compensated for with super resolution (SR) techniques that take a wide FOV,…

Image and Video Processing · Electrical Eng. & Systems 2020-02-18 Ying Da Wang , Ryan T. Armstrong , Peyman Mostaghimi

Due to the lack of available annotated medical images, accurate computer-assisted diagnosis requires intensive Data Augmentation (DA) techniques, such as geometric/intensity transformations of original images; however, those transformed…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Changhee Han , Leonardo Rundo , Ryosuke Araki , Yujiro Furukawa , Giancarlo Mauri , Hideki Nakayama , Hideaki Hayashi

Most deep learning-based super-resolution (SR) methods are not image-specific: 1) They are trained on samples synthesized by predefined degradations (e.g. bicubic downsampling), regardless of the domain gap between training and testing…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Shang Li , Guixuan Zhang , Zhengxiong Luo , Jie Liu , Zhi Zeng , Shuwu Zhang

Recently, machine learning based single image super resolution (SR) approaches focus on jointly learning representations for high-resolution (HR) and low-resolution (LR) image patch pairs to improve the quality of the super-resolved images.…

Computer Vision and Pattern Recognition · Computer Science 2016-07-26 Yukai Shi , Keze Wang , Li Xu , Liang Lin

High-resolution cameras have become very helpful for plant phenotyping by providing a mechanism for tasks such as target versus background discrimination, and the measurement and analysis of fine-above-ground plant attributes. However, the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-06 Jose F. Ruiz-Munoz , Jyothier K. Nimmagadda , Tyler G. Dowd , James E. Baciak , Alina Zare

Pathology image are essential for accurately interpreting lesion cells in cytopathology screening, but acquiring high-resolution digital slides requires specialized equipment and long scanning times. Though super-resolution (SR) techniques…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Wenting Chen , Jie Liu , Tommy W. S. Chow , Yixuan Yuan

Deep learning techniques have led to state-of-the-art image super resolution with natural images. Normally, pairs of high-resolution and low-resolution images are used to train the deep learning models. These techniques have also been…

Image and Video Processing · Electrical Eng. & Systems 2022-10-14 Yutaro Iwamoto , Kyohei Takeda , Yinhao Li , Akihiko Shiino , Yen-Wei Chen

Despite significant progress toward super resolving more realistic images by deeper convolutional neural networks (CNNs), reconstructing fine and natural textures still remains a challenging problem. Recent works on single image super…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Mohammad Saeed Rad , Behzad Bozorgtabar , Claudiu Musat , Urs-Viktor Marti , Max Basler , Hazim Kemal Ekenel , Jean-Philippe Thiran