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Purpose: Proton magnetic resonance spectroscopic imaging ($^1$H MRSI) enables the mapping of whole-brain metabolites concentrations in-vivo. However, a long-standing problem for its clinical applicability is the metabolic quantification,…

We introduce a novel superpoint-based transformer architecture for efficient semantic segmentation of large-scale 3D scenes. Our method incorporates a fast algorithm to partition point clouds into a hierarchical superpoint structure, which…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Damien Robert , Hugo Raguet , Loic Landrieu

Segmentation of brain magnetic resonance images (MRI) is crucial for the analysis of the human brain and diagnosis of various brain disorders. The drawbacks of time-consuming and error-prone manual delineation procedures are aimed to be…

Computer Vision and Pattern Recognition · Computer Science 2022-05-20 Can Taylan Sari , Sila Kurugol , Onur Afacan , Simon K. Warfield

Hyper spectral images (HSI) provide rich spectral and spatial information across a series of contiguous spectral bands. However, the accurate processing of the spectral and spatial correlation between the bands requires the use of…

Neural and Evolutionary Computing · Computer Science 2021-07-29 Gourav Datta , Souvik Kundu , Akhilesh R. Jaiswal , Peter A. Beerel

Background: Accurate myocardial T1 mapping at 5T remains a technical challenge due to field inhomogeneity and prolonged T1 values. The aim of this study is to develop an accurate and clinically applicable myocardial T1 mapping technique for…

We propose an accurate and fast classification network for classification of brain tumors in MRI images that outperforms all lightweight methods investigated in terms of accuracy. We test our model on a challenging 2D T1-weighted CE-MRI…

Image and Video Processing · Electrical Eng. & Systems 2023-08-02 Grace Billingsley , Julia Dietlmeier , Vivek Narayanaswamy , Andreas Spanias , Noel E. OConnor

Quality-Diversity (QD) optimization algorithms are a well-known approach to generate large collections of diverse and high-quality solutions. However, derived from evolutionary computation, QD algorithms are population-based methods which…

Neural and Evolutionary Computing · Computer Science 2022-10-11 Bryan Lim , Maxime Allard , Luca Grillotti , Antoine Cully

Quantum noise fundamentally limits the utility of near-term quantum devices, making error mitigation essential for practical quantum computation. While traditional quantum error correction codes require substantial qubit overhead and…

Quantum Physics · Physics 2025-09-23 Karan Kendre

The ASNR-MICCAI BraTS-Inpainting Challenge was established to mitigate dataset biases that limit deep learning models in the quantitative analysis of brain tumor MRI. This paper details our submission to the 2025 challenge, a novel deep…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Juexin Zhang , Ying Weng , Ke Chen

Magnetic Resonance Spectroscopic Imaging (MRSI) is a powerful tool for non-invasive mapping of brain metabolites, providing critical insights into neurological conditions. However, its utility is often limited by missing or corrupted data…

Image and Video Processing · Electrical Eng. & Systems 2025-05-13 Tan-Hanh Pham , Ovidiu C. Andronesi , Xianqi Li , Kim-Doang Nguyen

Standard Patlak plot is widely used to describe FDG kinetics for dynamic PET imaging. Whole-body Patlak parametric imaging remains constrained due to the need for a full-time input function. Here, we demonstrate the Relative Patlak (RP)…

Medical Physics · Physics 2024-07-29 Siqi Li , Yasser G. Abdelhafez , Lorenzo Nardo , Simon R. Cherry , Ramsey D. Badawi , Guobao Wang

We introduce a comprehensive framework for the detection and demodulation of covert electromagnetic signals using solid-state spin sensors. Our approach, named RAPID, is a two-stage hybrid strategy that leverages nitrogen-vacancy (NV)…

Quantum Physics · Physics 2025-09-11 Amirhossein Taherpour , Abbas Taherpour , Tamer Khattab

LiDAR point clouds are widely used in autonomous driving and consist of large numbers of 3D points captured at high frequency to represent surrounding objects such as vehicles, pedestrians, and traffic signs. While this dense data enables…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Z. Rozsa , Á. Madaras , Q. Wei , X. Lu , M. Golarits , H. Yuan , T. Sziranyi , R. Hamzaoui

In recent years, Neural Radiance Fields (NeRF) have demonstrated significant advantages in representing and synthesizing 3D scenes. Explicit NeRF models facilitate the practical NeRF applications with faster rendering speed, and also…

Image and Video Processing · Electrical Eng. & Systems 2024-09-23 Yuke Xing , Qi Yang , Kaifa Yang , Yilin Xu , Zhu Li

Magnetic Resonance Imaging (MRI) is a non-invasive diagnostic and radiotherapy (RT) planning tool, offering detailed insights into the anatomy of the human body. The extensive scan time is stressful for patients, who must remain motionless…

Image and Video Processing · Electrical Eng. & Systems 2023-11-23 Shahinur Alam , Jinsoo Uh , Alexander Dresner , Chia-ho Hua , Khaled Khairy

Automated quality assessment of structural brain MRI is an important prerequisite for reliable neuroimaging analysis, but yet remains challenging due to motion artifacts and poor generalization across acquisition sites. Existing approaches…

Image and Video Processing · Electrical Eng. & Systems 2026-03-09 Naveetha Nithianandam , Prabhjot Kaur , Anil Kumar Sao

3D non-Cartesian trajectories offer several advantages over rectilinear trajectories for rapid volumetric imaging, including improved sampling efficiency and greater robustness to motion, flow, and aliasing artifacts. In this paper, we…

Image and Video Processing · Electrical Eng. & Systems 2025-03-24 Kwang Eun Jang , Dwight G. Nishimura

With the advent of convolutional neural networks~(CNN), supervised learning methods are increasingly being used for whole brain segmentation. However, a large, manually annotated training dataset of labeled brain images required to train…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Amod Jog , Andrew Hoopes , Douglas N. Greve , Koen Van Leemput , Bruce Fischl

Ultrasound tomography (UST) scanners allow quantitative images of the human breast's acoustic properties to be derived with potential applications in screening, diagnosis and therapy planning. Time domain full waveform inversion (TD-FWI) is…

Numerical Analysis · Mathematics 2022-01-19 Felix Lucka , Mailyn Pérez-Liva , Bradley E. Treeby , Ben T. Cox

Volumetric learning underpins many 3D vision tasks such as completion, reconstruction, and mesh generation, yet training objectives still rely on Chamfer Distance (CD) or Earth Mover's Distance (EMD), which fail to balance recall and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Pranay Meshram , Yash Turkar , Kartikeya Singh , Praveen Raj Masilamani , Charuvahan Adhivarahan , Karthik Dantu
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