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Field-of-view and resolution trade-offs in X-Ray micro-computed tomography (micro-CT) imaging limit the characterization, analysis and model development of multi-scale porous systems. To this end, we developed an applied methodology…

地球物理 · 物理学 2022-03-17 Samuel J. Jackson , Yufu Niu , Sojwal Manoorkar , Peyman Mostaghimi , Ryan T. Armstrong

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…

图像与视频处理 · 电气工程与系统科学 2022-06-22 Yanhui Guo , Xiaolin Wu , Xiao Shu

We apply and test a field-level emulator for non-linear cosmic structure formation in a volume matching next-generation surveys. Inferring the cosmological parameters and initial conditions from which the particular galaxy distribution of…

宇宙学与河外天体物理 · 物理学 2025-02-20 Matthew T. Scoggins , Matthew Ho , Francisco Villaescusa-Navarro , Drew Jamieson , Ludvig Doeser , Greg L. Bryan

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…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Noam Elron , Alex Itskovich , Shahar S. Yuval , Noam Levy

The current existing deep image super-resolution methods usually assume that a Low Resolution (LR) image is bicubicly downscaled of a High Resolution (HR) image. However, such an ideal bicubic downsampling process is different from the real…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Rao Muhammad Umer , Christian Micheloni

Recent image Super-Resolution (SR) models are achieving impressive effects in reconstructing details and delivering visually pleasant outputs. However, the overpowering generative ability can sometimes hallucinate and thus change the image…

计算机视觉与模式识别 · 计算机科学 2025-12-10 Josep M. Rocafort , Shaolin Su , Alexandra Gomez-Villa , Javier Vazquez-Corral

Most super-resolution (SR) models struggle with real-world low-resolution (LR) images. This issue arises because the degradation characteristics in the synthetic datasets differ from those in real-world LR images. Since SR models are…

图像与视频处理 · 电气工程与系统科学 2025-03-05 Ru Ito , Supatta Viriyavisuthisakul , Kazuhiko Kawamoto , Hiroshi Kera

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…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Jie Cai , Zibo Meng , Jiaming Ding , Chiu Man Ho

Computer simulations are invaluable tools for scientific discovery. However, accurate simulations are often slow to execute, which limits their applicability to extensive parameter exploration, large-scale data analysis, and uncertainty…

Image super-resolution (SR) aims to learn a mapping from low-resolution (LR) to high-resolution (HR) using paired HR-LR training images. Conventional SR methods typically gather the paired training data by synthesizing LR images from HR…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Zeshuai Deng , Zhuokun Chen , Shuaicheng Niu , Thomas H. Li , Bohan Zhuang , Mingkui Tan

Depth maps obtained by commercial depth sensors are always in low-resolution, making it difficult to be used in various computer vision tasks. Thus, depth map super-resolution (SR) is a practical and valuable task, which upscales the depth…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Lingzhi He , Hongguang Zhu , Feng Li , Huihui Bai , Runmin Cong , Chunjie Zhang , Chunyu Lin , Meiqin Liu , Yao Zhao

Generative super-resolution (GSR) currently sets the state-of-the-art in terms of perceptual image quality, overcoming the "regression-to-the-mean" blur of prior non-generative models. However, from a human perspective, such models do not…

计算机视觉与模式识别 · 计算机科学 2026-01-12 Weiming Ren , Raghav Goyal , Zhiming Hu , Tristan Ty Aumentado-Armstrong , Iqbal Mohomed , Alex Levinshtein

Super-resolution (SR) has traditionally been based on pairs of high-resolution images (HR) and their low-resolution (LR) counterparts obtained artificially with bicubic downsampling. However, in real-world SR, there is a large variety of…

图像与视频处理 · 电气工程与系统科学 2020-11-06 Mohammad Saeed Rad , Thomas Yu , Claudiu Musat , Hazim Kemal Ekenel , Behzad Bozorgtabar , Jean-Philippe Thiran

Similarity analysis is one of the crucial steps in most fMRI studies. Representational Similarity Analysis (RSA) can measure similarities of neural signatures generated by different cognitive states. This paper develops Deep…

图像与视频处理 · 电气工程与系统科学 2020-10-06 Muhammad Yousefnezhad , Jeffrey Sawalha , Alessandro Selvitella , Daoqiang Zhang

We present validation tests of emulator-based halo model method for cosmological parameter inference, assuming hypothetical measurements of the projected correlation function of galaxies, $w_{\rm p}(R)$, and the galaxy-galaxy weak lensing,…

Realistic image super-resolution (SR) focuses on transforming real-world low-resolution (LR) images into high-resolution (HR) ones, handling more complex degradation patterns than synthetic SR tasks. This is critical for applications like…

计算机视觉与模式识别 · 计算机科学 2025-11-24 Chaowei Fang , Bolin Fu , De Cheng , Lechao Cheng , Guanbin Li

Super-Resolution (SR) is the problem that consists in reconstructing images that have been degraded by a zoom-out operator. This is an ill-posed problem that does not have a unique solution, and numerical approaches rely on a prior on…

图像与视频处理 · 电气工程与系统科学 2024-05-30 Emile Pierret , Bruno Galerne

Deep learning-based Generative Models have the potential to convert low-resolution CT images into high-resolution counterparts without long acquisition times and increased radiation exposure in thin-slice CT imaging. However, procuring…

图像与视频处理 · 电气工程与系统科学 2024-06-04 Zeyu Tang , Xiaodan Xing , Guang Yang

The analysis of computer models can be aided by the construction of surrogate models, or emulators, that statistically model the numerical computer model. Increasingly, computer models are becoming stochastic, yielding different outputs…

统计方法学 · 统计学 2020-04-10 Evan Baker , Peter Challenor , Matt Eames

Hydrodynamical cosmological simulations are a powerful tool for accurately predicting the properties of the intergalactic medium (IGM) and for producing mock skies that can be compared against observational data. However, the need to…

宇宙学与河外天体物理 · 物理学 2023-08-08 Cooper Jacobus , Peter Harrington , Zarija Lukić