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We introduce Soft Kernel Interpolation (SoftKI), a method that combines aspects of Structured Kernel Interpolation (SKI) and variational inducing point methods, to achieve scalable Gaussian Process (GP) regression on high-dimensional…

Machine Learning · Statistics 2025-09-18 Chris Camaño , Daniel Huang

Accelerating magnetic resonance image (MRI) reconstruction process is a challenging ill-posed inverse problem due to the excessive under-sampling operation in k-space. In this paper, we propose a recurrent transformer model, namely…

Image and Video Processing · Electrical Eng. & Systems 2022-01-31 Pengfei Guo , Yiqun Mei , Jinyuan Zhou , Shanshan Jiang , Vishal M. Patel

We propose a k-space preconditioning formulation for accelerating the convergence of iterative Magnetic Resonance Imaging (MRI) reconstructions from non-uniformly sampled k-space data. Existing methods either use sampling density…

Medical Physics · Physics 2020-05-13 Frank Ong , Martin Uecker , Michael Lustig

The scanning time for a fully sampled MRI can be undesirably lengthy. Compressed sensing has been developed to minimize image artifacts in accelerated scans, but the required iterative reconstruction is computationally complex and difficult…

Image and Video Processing · Electrical Eng. & Systems 2025-03-10 Di Xu , Hengjie Liu , Xin Miao , Daniel O'Connor , Jessica E. Scholey , Wensha Yang , Mary Feng , Michael Ohliger , Hui Lin , Dan Ruan , Yang Yang , Ke Sheng

Neural networks have greatly boosted performance in computer vision by learning powerful representations of input data. The drawback of end-to-end training for maximal overall performance are black-box models whose hidden representations…

Computer Vision and Pattern Recognition · Computer Science 2020-04-29 Patrick Esser , Robin Rombach , Björn Ommer

Pansharpening aims to fuse high-resolution panchromatic (PAN) images with low-resolution multispectral (LRMS) images to generate high-resolution multispectral (HRMS) images. Although deep learning-based methods have achieved promising…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Zeyu Xia , Chenxi Sun , Tianyu Xin , Yubo Zeng , Haoyu Chen , Liang-Jian Deng

White-box AI (WAI), or explainable AI (XAI) model, a novel tool to achieve the reasoning behind decisions and predictions made by the AI algorithms, makes it more understandable and transparent. It offers a new approach to address key…

Information Theory · Computer Science 2025-04-15 Jiayao Yang , Jiayi Zhang , Bokai Xu , Jiakang Zheng , Zhilong Liu , Ziheng Liu , Dusit Niyato , Mérouane Debbah , Zhu Han , Bo Ai

Image interpolation is a special case of image super-resolution, where the low-resolution image is directly down-sampled from its high-resolution counterpart without blurring and noise. Therefore, assumptions adopted in super-resolution…

Image and Video Processing · Electrical Eng. & Systems 2020-10-28 Junchao Zhang

Transformer-based Vision-Language Models (VLMs) have achieved impressive performance on tasks such as image captioning, object recognition, and visual reasoning, but their high computational cost hinders deployment in latency-sensitive…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Lianming Huang , Haibo Hu , Qiao Li , Xin He , Nan Guan , Chun Jason Xue

The integration of Artificial Intelligence (AI) in medical diagnostics is often hindered by model opacity, where high-accuracy systems function as "black boxes" without transparent reasoning. This limitation is critical in clinical…

Image and Video Processing · Electrical Eng. & Systems 2024-09-23 Pascal Passigan , Vayd Ramkumar

Purpose: Pushing MRI speed further demands more spatially-encoded information captured per unit time, e.g., by superimposing additional field modulations during oversampled readout. However, this can introduce calibration errors and…

Medical Physics · Physics 2026-01-12 Rui Tian , Martin Uecker , Oliver Holder , Pavel Povolni , Theodor Steffen , Klaus Scheffler

In this paper, we develop a novel transformer-based generative adversarial neural network called U-Transformer for generalised image outpainting problem. Different from most present image outpainting methods conducting horizontal…

Computer Vision and Pattern Recognition · Computer Science 2022-09-15 Penglei Gao , Xi Yang , Rui Zhang , John Y. Goulermas , Yujie Geng , Yuyao Yan , Kaizhu Huang

White balance (WB) correction in scenes with multiple illuminants remains a persistent challenge in computer vision. Recent methods explored fusion-based approaches, where a neural network linearly blends multiple sRGB versions of an input…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 David Serrano-Lozano , Aditya Arora , Luis Herranz , Konstantinos G. Derpanis , Michael S. Brown , Javier Vazquez-Corral

Building generalizable AI models is one of the primary challenges in the healthcare domain. While radiologists rely on generalizable descriptive rules of abnormality, Neural Network (NN) models suffer even with a slight shift in input…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Shantanu Ghosh , Ke Yu , Kayhan Batmanghelich

Recently, learned image compression methods have outperformed traditional hand-crafted ones including BPG. One of the keys to this success is learned entropy models that estimate the probability distribution of the quantized latent…

Image and Video Processing · Electrical Eng. & Systems 2022-07-22 Jun-Hyuk Kim , Byeongho Heo , Jong-Seok Lee

Parallel imaging is a widely-used technique to accelerate magnetic resonance imaging (MRI). However, current methods still perform poorly in reconstructing artifact-free MRI images from highly undersampled k-space data. Recently, implicit…

Image and Video Processing · Electrical Eng. & Systems 2022-10-20 Ruimin Feng , Qing Wu , Yuyao Zhang , Hongjiang Wei

Magnetic resonance imaging (MRI) is known to be a slow imaging modality and undersampling in k-space has been used to increase the imaging speed. However, image reconstruction from undersampled k-space data is an ill-posed inverse problem.…

Image and Video Processing · Electrical Eng. & Systems 2019-08-08 Jing Cheng , Haifeng Wang , Leslie Ying , Dong Liang

In this paper, we propose Transformer Layer Injection (TLI), a novel method for efficiently upscaling large language models (LLMs) while minimizing computational costs and maintaining model performance. Model scale is a key factor in…

Computation and Language · Computer Science 2024-10-16 James Vo

Iris restoration from complexly degraded iris images, aiming to improve iris recognition performance, is a challenging problem. Due to the complex degradation, directly training a convolutional neural network (CNN) without prior cannot…

Image and Video Processing · Electrical Eng. & Systems 2024-09-24 Yubo Huang , Jia Wang , Peipei Li , Liuyu Xiang , Peigang Li , Zhaofeng He

Classification of gigapixel Whole Slide Images (WSIs) is an important prediction task in the emerging area of computational pathology. There has been a surge of research in deep learning models for WSI classification with clinical…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Sajid Javed , Arif Mahmood , Talha Qaiser , Naoufel Werghi , Nasir Rajpoot