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In this paper, we propose a novel framework, the Sampling-guided Heterogeneous Graph Neural Network (SHT-GNN), to effectively tackle the challenge of missing data imputation in longitudinal studies. Unlike traditional methods, which often…

Machine Learning · Computer Science 2024-11-08 Zhaoyang Zhang , Ziqi Chen , Qiao Liu , Jinhan Xie , Hongtu Zhu

In recent years, accelerated MRI reconstruction based on deep learning has led to significant improvements in image quality with impressive results for high acceleration factors. However, from a clinical perspective image quality is only…

Image and Video Processing · Electrical Eng. & Systems 2025-07-02 Jan Nikolas Morshuis , Christian Schlarmann , Thomas Küstner , Christian F. Baumgartner , Matthias Hein

Medical image segmentation plays a crucial role in various clinical applications. A major challenge in medical image segmentation is achieving accurate delineation of regions of interest in the presence of noise, low contrast, or complex…

Image and Video Processing · Electrical Eng. & Systems 2025-02-20 Yucheng Zeng

Image translation across domains for unpaired datasets has gained interest and great improvement lately. In medical imaging, there are multiple imaging modalities, with very different characteristics. Our goal is to use cross-modality…

Image and Video Processing · Electrical Eng. & Systems 2022-02-07 Leo Segre , Or Hirschorn , Dvir Ginzburg , Dan Raviv

Purpose: The goal of this work was to develop a deep network for whole-head segmentation including clinical MRIs with abnormal anatomy, and compile the first public benchmark dataset for this purpose. We collected 98 MRIs with volumetric…

Image and Video Processing · Electrical Eng. & Systems 2025-09-04 Andrew M Birnbaum , Adam Buchwald , Peter Turkeltaub , Adam Jacks , George Carra , Shreya Kannana , Yu Huang , Abhisheck Datta , Lucas C Parra , Lukas A Hirsch

MR imaging is a valuable diagnostic tool allowing to non-invasively visualize patient anatomy and pathology with high soft-tissue contrast. However, MRI acquisition is typically time-consuming, leading to patient discomfort and increased…

Image and Video Processing · Electrical Eng. & Systems 2025-12-23 Jan Nikolas Morshuis , Matthias Hein , Christian F. Baumgartner

Generalizability in deep neural networks plays a pivotal role in medical image segmentation. However, deep learning-based medical image analyses tend to overlook the importance of frequency variance, which is critical element for achieving…

Image and Video Processing · Electrical Eng. & Systems 2024-05-13 Ju-Hyeon Nam , Nur Suriza Syazwany , Su Jung Kim , Sang-Chul Lee

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

Multimodal MR image synthesis aims to generate missing modality images by effectively fusing and mapping from a subset of available MRI modalities. Most existing methods adopt an image-to-image translation paradigm, treating multiple…

Image and Video Processing · Electrical Eng. & Systems 2025-04-29 Tao Song , Yicheng Wu , Minhao Hu , Xiangde Luo , Linda Wei , Guotai Wang , Yi Guo , Feng Xu , Shaoting Zhang

MRI is an inherently slow process, which leads to long scan time for high-resolution imaging. The speed of acquisition can be increased by ignoring parts of the data (undersampling). Consequently, this leads to the degradation of image…

Image and Video Processing · Electrical Eng. & Systems 2022-02-22 Soumick Chatterjee , Mario Breitkopf , Chompunuch Sarasaen , Hadya Yassin , Georg Rose , Andreas Nürnberger , Oliver Speck

Cardiac magnetic resonance imaging (CMR) has emerged as a valuable diagnostic tool for cardiac diseases. However, a limitation of CMR is its slow imaging speed, which causes patient discomfort and introduces artifacts in the images. There…

Three-Dimensional Gaussian Splatting (3DGS) has shown substantial promise in the field of computer vision, but remains unexplored in the field of magnetic resonance imaging (MRI). This study explores its potential for the reconstruction of…

Image and Video Processing · Electrical Eng. & Systems 2026-03-18 Tengya Peng , Ruyi Zha , Zhen Li , Xiaofeng Liu , Qing Zou

The segmentation of medical images is a fundamental step in automated clinical decision support systems. Existing medical image segmentation methods based on supervised deep learning, however, remain problematic because of their reliance on…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Euijoon Ahn , Dagan Feng , Jinman Kim

Spinal surgery planning necessitates automatic segmentation of vertebrae in cone-beam computed tomography (CBCT), an intraoperative imaging modality that is widely used in intervention. However, CBCT images are of low-quality and…

Image and Video Processing · Electrical Eng. & Systems 2021-03-10 Yuanyuan Lyu , Haofu Liao , Heqin Zhu , S. Kevin Zhou

Neuropathological analyses benefit from spatially precise volumetric reconstructions that enhance anatomical delineation and improve morphometric accuracy. Our prior work has shown the feasibility of reconstructing 3D brain volumes from 2D…

Automatic and accurate whole-heart and great vessel segmentation from 3D cardiac magnetic resonance (MR) images plays an important role in the computer-assisted diagnosis and treatment of cardiovascular disease. However, this task is very…

Computer Vision and Pattern Recognition · Computer Science 2017-08-03 Lequan Yu , Jie-Zhi Cheng , Qi Dou , Xin Yang , Hao Chen , Jing Qin , Pheng-Ann Heng

The morphologies of vessel-like structures, such as blood vessels and nerve fibres, play significant roles in disease diagnosis, e.g., Parkinson's disease. Deep network-based refinement segmentation methods have recently achieved promising…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Haili Ye , Xiaoqing Zhang , Yan Hu , Huazhu Fu , Jiang Liu

Accurate segmentation of 3D medical images is critical for clinical applications like disease assessment and treatment planning. While the Segment Anything Model 2 (SAM2) has shown remarkable success in video object segmentation by…

Image and Video Processing · Electrical Eng. & Systems 2025-10-13 Yeqing Yang , Le Xu , Lixia Tian

Recently, the state-of-art models for medical image segmentation is U-Net and their variants. These networks, though succeeding in deriving notable results, ignore the practical problem hanging over the medical segmentation field:…

Image and Video Processing · Electrical Eng. & Systems 2025-01-07 Hao Ziang , Jingsi Zhang , Lixian Li

High resolution magnetic resonance (MR) imaging is desirable in many clinical applications due to its contribution to more accurate subsequent analyses and early clinical diagnoses. Single image super resolution (SISR) is an effective and…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Xiaole Zhao , Yulun Zhang , Tao Zhang , Xueming Zou
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