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Although some convolutional neural networks (CNNs) based super-resolution (SR) algorithms yield good visual performances on single images recently. Most of them focus on perfect perceptual quality but ignore specific needs of subsequent…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Bin Wang , Tao Lu , Yanduo Zhang

The inability to acquire clean high-resolution (HR) electron microscopy (EM) images over a large brain tissue volume hampers many neuroscience studies. To address this challenge, we propose a deep-learning-based image super-resolution (SR)…

Computer Vision and Pattern Recognition · Computer Science 2024-01-29 Mohammad Khateri , Morteza Ghahremani , Alejandra Sierra , Jussi Tohka

The main focus of this work is a novel framework for the joint reconstruction and segmentation of parallel MRI (PMRI) brain data. We introduce an image domain deep network for calibrationless recovery of undersampled PMRI data. The proposed…

Image and Video Processing · Electrical Eng. & Systems 2021-02-03 Aniket Pramanik , Mathews Jacob

Structured low-rank (SLR) algorithms, which exploit annihilation relations between the Fourier samples of a signal resulting from different properties, is a powerful image reconstruction framework in several applications. This scheme relies…

Machine Learning · Computer Science 2020-08-11 Aniket Pramanik , Hemant Aggarwal , Mathews Jacob

Magnetic Resonance Imaging (MRI) has become an important technique in the clinic for the visualization, detection, and diagnosis of various diseases. However, one bottleneck limitation of MRI is the relatively slow data acquisition process.…

Image and Video Processing · Electrical Eng. & Systems 2022-11-28 Xue Liu , Juan Zou , Xiawu Zheng , Cheng Li , Hairong Zheng , Shanshan Wang

Deep Learning has led to a dramatic leap in Super-Resolution (SR) performance in the past few years. However, being supervised, these SR methods are restricted to specific training data, where the acquisition of the low-resolution (LR)…

Computer Vision and Pattern Recognition · Computer Science 2017-12-19 Assaf Shocher , Nadav Cohen , Michal Irani

Functional MRI (fMRI) is an important tool for non-invasive studies of brain function. Over the past decade, multi-echo fMRI methods that sample multiple echo times has become popular with potential to improve quantification. While these…

Image and Video Processing · Electrical Eng. & Systems 2023-12-12 Hongyi Gu , Chi Zhang , Zidan Yu , Christoph Rettenmeier , V. Andrew Stenger , Mehmet Akçakaya

Deep neural networks have exhibited promising performance in image super-resolution (SR) due to the power in learning the non-linear mapping from low-resolution (LR) images to high-resolution (HR) images. However, most deep learning methods…

Computer Vision and Pattern Recognition · Computer Science 2018-09-20 Yong Guo , Qi Chen , Jian Chen , Junzhou Huang , Yanwu Xu , Jiezhang Cao , Peilin Zhao , Mingkui Tan

We tackle the problem of retrieving high-resolution (HR) texture maps of objects that are captured from multiple view points. In the multi-view case, model-based super-resolution (SR) methods have been recently proved to recover high…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Yawei Li , Vagia Tsiminaki , Radu Timofte , Marc Pollefeys , Luc van Gool

The performance of deep learning based image super-resolution (SR) methods depend on how accurately the paired low and high resolution images for training characterize the sampling process of real cameras. Low and high resolution…

Image and Video Processing · Electrical Eng. & Systems 2022-06-22 Yanhui Guo , Xiaolin Wu , Xiao Shu

Late gadolinium enhancement (LGE) cardiac MRI (CMR) is the clinical standard for diagnosis of myocardial scar. 3D isotropic LGE CMR provides improved coverage and resolution compared to 2D imaging. However, image acceleration is required…

Image and Video Processing · Electrical Eng. & Systems 2021-06-02 Burhaneddin Yaman , Chetan Shenoy , Zilin Deng , Steen Moeller , Hossam El-Rewaidy , Reza Nezafat , Mehmet Akçakaya

Deep learning-based image super-resolution (DL-SR) has shown great promise in medical imaging applications. To date, most of the proposed methods for DL-SR have only been assessed by use of traditional measures of image quality (IQ) that…

Image and Video Processing · Electrical Eng. & Systems 2021-07-07 Xiaohui Zhang , Varun A. Kelkar , Jason Granstedt , Hua Li , Mark A. Anastasio

Magnetic resonance imaging (MRI) is a widely used medical imaging modality. However, due to the limitations in hardware, scan time, and throughput, it is often clinically challenging to obtain high-quality MR images. The super-resolution…

Image and Video Processing · Electrical Eng. & Systems 2020-02-20 Qing Lyu , Hongming Shan , Ge Wang

Background: Deep learning superresolution (SR) may enhance musculoskeletal MR image quality, but its diagnostic value in knee imaging at 7T is unclear. Objectives: To compare image quality and diagnostic performance of SR, low-resolution…

Image and Video Processing · Electrical Eng. & Systems 2026-01-07 Pinzhen Chen , Libo Xu , Boyang Pan , Jing Li , Yuting Wang , Ran Xiong , Xiaoli Gou , Long Qing , Wenjing Hou , Nan-jie Gong , Wei Chen

The state of the art in video super-resolution (SR) are techniques based on deep learning, but they perform poorly on real-world videos (see Figure 1). The reason is that training image-pairs are commonly created by downscaling a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Noam Elron , Alex Itskovich , Shahar S. Yuval , Noam Levy

Magnetic Resonance Imaging (MRI) represents an important diagnostic modality; however, its inherently slow acquisition process poses challenges in obtaining fully-sampled $k$-space data under motion. In the absence of fully-sampled…

Image and Video Processing · Electrical Eng. & Systems 2024-12-23 George Yiasemis , Nikita Moriakov , Clara I. Sánchez , Jan-Jakob Sonke , Jonas Teuwen

High-resolution (HR) information of fluid flows, although preferable, is usually less accessible due to limited computational or experimental resources. In many cases, fluid data are generally sparse, incomplete, and possibly noisy. How to…

Fluid Dynamics · Physics 2021-07-20 Han Gao , Luning Sun , Jian-Xun Wang

Medical image super-resolution (MedSR) is essential for improving diagnostic precision across diverse imaging modalities such as MRI, CT, X-ray, Ultrasound, and Fundus imaging. Despite rapid advances in deep learning, challenges remain in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Subhash Gurappa , Trivikram Satharasi , Yashas Hariprasad , Sundararaj Sitharama Iyengar

High resolution (HR) 3D images are widely used nowadays, such as medical images like Magnetic Resonance Imaging (MRI) and Computed Tomography (CT). However, segmentation of these 3D images remains a challenge due to their high spatial…

Image and Video Processing · Electrical Eng. & Systems 2023-07-11 Hongyi Wang , Lanfen Lin , Hongjie Hu , Qingqing Chen , Yinhao Li , Yutaro Iwamoto , Xian-Hua Han , Yen-Wei Chen , Ruofeng Tong

Image super-resolution (SR) is a representative low-level vision problem. Although deep SR networks have achieved extraordinary success, we are still unaware of their working mechanisms. Specifically, whether SR networks can learn semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Yihao Liu , Anran Liu , Jinjin Gu , Zhipeng Zhang , Wenhao Wu , Yu Qiao , Chao Dong
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