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Image Super-Resolution (ISR), which aims at recovering High-Resolution (HR) images from the corresponding Low-Resolution (LR) counterparts. Although recent progress in ISR has been remarkable. However, they are way too computationally…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Jie Cai , Zibo Meng , Jiaming Ding , Chiu Man Ho

We introduce a multi-scale Image Super Resolution (ISR) method building on recent advances in Visual Auto-Regressive (VAR) modeling. VAR models break image tokenization into additive, gradually increasing scales, using Residual Quantization…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Isma Hadji , Enrique Sanchez , Adrian Bulat , Brais Martinez , Georgios Tzimiropoulos

Image Super-Resolution (ISR) has seen significant progress with the introduction of remarkable generative models. However, challenges such as the trade-off issues between fidelity and realism, as well as computational complexity, have also…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Yunpeng Qu , Kun Yuan , Jinhua Hao , Kai Zhao , Qizhi Xie , Ming Sun , Chao Zhou

We present a novel method for reconstructing clothed humans from a sparse set of, e.g., 1 to 6 RGB images. Despite impressive results from recent works employing deep implicit representation, we revisit the volumetric approach and…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Sicong Tang , Guangyuan Wang , Qing Ran , Lingzhi Li , Li Shen , Ping Tan

In the realm of medical 3D data, such as CT and MRI images, prevalent anisotropic resolution is characterized by high intra-slice but diminished inter-slice resolution. The lowered resolution between adjacent slices poses challenges,…

Image and Video Processing · Electrical Eng. & Systems 2024-04-09 Wei Fang , Yuxing Tang , Heng Guo , Mingze Yuan , Tony C. W. Mok , Ke Yan , Jiawen Yao , Xin Chen , Zaiyi Liu , Le Lu , Ling Zhang , Minfeng Xu

We propose a marginal super-resolution (MSR) approach based on 2D convolutional neural networks (CNNs) for interpolating an anisotropic brain magnetic resonance scan along the highly under-sampled direction, which is assumed to axial…

Image and Video Processing · Electrical Eng. & Systems 2019-08-16 Cheng Peng , Wei-An Lin , Haofu Liao , Rama Chellappa , S. Kevin Zhou

This work studies Hyperspectral image (HSI) super-resolution (SR). HSI SR is characterized by high-dimensional data and a limited amount of training examples. This exacerbates the undesirable behaviors of neural networks such as…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Ke Li , Dengxin Dai , Ender Konukoglu , Luc Van Gool

Remote sensing image super-resolution (RSISR) is a crucial task in remote sensing image processing, aiming to reconstruct high-resolution (HR) images from their low-resolution (LR) counterparts. Despite the growing number of RSISR methods…

Image and Video Processing · Electrical Eng. & Systems 2025-11-04 Yunliang Qi , Meng Lou , Yimin Liu , Lu Li , Zhen Yang , Wen Nie

This study presents a new image super-resolution (SR) technique based on diffusion inversion, aiming at harnessing the rich image priors encapsulated in large pre-trained diffusion models to improve SR performance. We design a Partial noise…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Zongsheng Yue , Kang Liao , Chen Change Loy

Reconstructing detailed hand avatars plays a crucial role in various applications. While prior works have focused on capturing high-fidelity hand geometry, they heavily rely on high-resolution multi-view image inputs and struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Minje Kim , Tae-Kyun Kim

Deep neural networks have exhibited promising performance in image super-resolution (SR) by learning a nonlinear mapping function from low-resolution (LR) images to high-resolution (HR) images. However, there are two underlying limitations…

Computer Vision and Pattern Recognition · Computer Science 2020-05-25 Yong Guo , Jian Chen , Jingdong Wang , Qi Chen , Jiezhang Cao , Zeshuai Deng , Yanwu Xu , Mingkui Tan

Multispectral imaging (MSI) plays a critical role in material classification, environmental monitoring, and remote sensing. However, MSI sensors typically have wavelength-dependent resolution, which limits downstream analysis. MSI…

Image and Video Processing · Electrical Eng. & Systems 2026-03-10 Haley Duba-Sullivan , Emma J. Reid , Sophie Voisin , Charles A. Bouman , Gregery T. Buzzard

In clinical imaging, magnetic resonance (MR) image volumes are often acquired as stacks of 2D slices with decreased scan times, improved signal-to-noise ratio, and image contrasts unique to 2D MR pulse sequences. While this is sufficient…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Samuel W. Remedios , Shuwen Wei , Shuo Han , Jinwei Zhang , Aaron Carass , Kurt G. Schilling , Dzung L. Pham , Jerry L. Prince , Blake E. Dewey

Scale arbitrary super-resolution based on implicit image function gains increasing popularity since it can better represent the visual world in a continuous manner. However, existing scale arbitrary works are trained and evaluated on…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Zhiheng Li , Muheng Li , Jixuan Fan , Lei Chen , Yansong Tang , Jiwen Lu , Jie Zhou

Single image super-resolution (SR) aims to estimate a high-resolution (HR) image from a lowresolution (LR) input. Image priors are commonly learned to regularize the otherwise seriously ill-posed SR problem, either using external LR-HR…

Computer Vision and Pattern Recognition · Computer Science 2015-10-28 Zhangyang Wang , Yingzhen Yang , Zhaowen Wang , Shiyu Chang , Jianchao Yang , Thomas S. Huang

Recovering high-fidelity 3D images from sparse or degraded 2D images is a fundamental challenge in medical imaging, with broad applications ranging from 3D ultrasound reconstruction to MRI super-resolution. In the context of fetal MRI,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Maik Dannecker , Steven Jia , Nil Stolt-Ansó , Nadine Girard , Guillaume Auzias , François Rousseau , Daniel Rueckert

While functional Magnetic Resonance Imaging (fMRI) offers valuable insights into cognitive processes, its inherent spatial limitations pose challenges for detailed analysis of the fine-grained functional architecture of the brain. More…

Image and Video Processing · Electrical Eng. & Systems 2025-02-25 Fernando Pérez-Bueno , Hongwei Bran Li , Matthew S. Rosen , Shahin Nasr , Cesar Caballero-Gaudes , Juan Eugenio Iglesias

Hand-held light field (LF) cameras often exhibit low spatial resolution due to the inherent trade-off between spatial and angular dimensions. Existing supervised learning-based LF spatial super-resolution (SR) methods, which rely on…

Image and Video Processing · Electrical Eng. & Systems 2025-12-09 Jianxin Lei , Dongze Wu , Chengcai Xu , Hongcheng Gu , Guangquan Zhou , Junhui Hou , Ping Zhou

High-resolution (HR) medical videos are vital for accurate diagnosis, yet are hard to acquire due to hardware limitations and physiological constraints. Clinically, the collected low-resolution (LR) medical videos present unique challenges…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Xinyu Liu , Guolei Sun , Cheng Wang , Yixuan Yuan , Ender Konukoglu

Numerous image superresolution (SR) algorithms have been proposed for reconstructing high-resolution (HR) images from input images with lower spatial resolutions. However, effectively evaluating the perceptual quality of SR images remains a…

Image and Video Processing · Electrical Eng. & Systems 2020-04-15 Wei Zhou , Qiuping Jiang , Yuwang Wang , Zhibo Chen , Weiping Li
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