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Multi-contrast magnetic resonance imaging (MRI) is the most common management tool used to characterize neurological disorders based on brain tissue contrasts. However, acquiring high-resolution MRI scans is time-consuming and infeasible…

Image and Video Processing · Electrical Eng. & Systems 2023-06-08 Ye Mao , Lan Jiang , Xi Chen , Chao Li

Multi-modal fusion approaches aim to integrate information from different data sources. Unlike natural datasets, such as in audio-visual applications, where samples consist of "paired" modalities, data in healthcare is often collected…

Image and Video Processing · Electrical Eng. & Systems 2023-03-03 Nasir Hayat , Krzysztof J. Geras , Farah E. Shamout

In recent years, many mammographic image analysis methods have been introduced for improving cancer classification tasks. Two major issues of mammogram classification tasks are leveraging multi-view mammographic information and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Thanh-Huy Nguyen , Quang Hien Kha , Thai Ngoc Toan Truong , Ba Thinh Lam , Ba Hung Ngo , Quang Vinh Dinh , Nguyen Quoc Khanh Le

Introduction: Quantification of dynamic contrast-enhanced (DCE)-MRI has the potential to provide valuable clinical information, but robust pharmacokinetic modeling remains a challenge for clinical adoption. Methods: A 7-layer neural network…

Medical Physics · Physics 2024-05-22 Ouri Cohen , Soudabeh Kargar , Sungmin Woo , Alberto Vargas , Ricardo Otazo

The adversarial methods showed advanced performance by producing synthetic images to mitigate the domain shift, a common problem due to the hardship of acquiring labelled data in medical field. Most existing studies focus on modifying the…

Image and Video Processing · Electrical Eng. & Systems 2023-05-09 Xinwen Zhang , Chaoyi Zhang , Dongnan Liu , Qianbi Yu , Weidong Cai

Unconditional flow-matching trains diffusion models to transport samples from a source distribution to a target distribution by enforcing that the flows between sample pairs are unique. However, in conditional settings (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 George Stoica , Vivek Ramanujan , Xiang Fan , Ali Farhadi , Ranjay Krishna , Judy Hoffman

Medical image synthesis is an important topic for both clinical and research applications. Recently, diffusion models have become a leading approach in this area. Despite their strengths, many existing methods struggle with (1) limited…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Can Zhao , Pengfei Guo , Dong Yang , Yucheng Tang , Yufan He , Benjamin Simon , Mason Belue , Stephanie Harmon , Baris Turkbey , Daguang Xu

Materials and methods: First, a dual-time approach was assessed, for which the CNN was provided sequences of the MRI that initially depicted new MM (diagnosis MRI) as well as of a prediagnosis MRI: inclusion of only contrast-enhanced…

Image and Video Processing · Electrical Eng. & Systems 2024-03-14 Katerina Deike-Hofmann , Dorottya Dancs , Daniel Paech , Heinz-Peter Schlemmer , Klaus Maier-Hein , Philipp Bäumer , Alexander Radbruch , Michael Götz

Although fusion of information from multiple views of mammograms plays an important role to increase accuracy of breast cancer detection, developing multi-view mammograms-based computer-aided diagnosis (CAD) schemes still faces challenges…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Xuxin Chen , Yuheng Li , Mingzhe Hu , Ella Salari , Xiaoqian Chen , Richard L. J. Qiu , Bin Zheng , Xiaofeng Yang

In MRI, images of the same contrast (e.g., T$_1$) from the same subject can exhibit noticeable differences when acquired using different hardware, sequences, or scan parameters. These differences in images create a domain gap that needs to…

Image and Video Processing · Electrical Eng. & Systems 2023-08-17 Hwihun Jeong , Heejoon Byun , Dong Un Kang , Jongho Lee

This paper explores the use of self-supervised deep learning in medical imaging in cases where two scan modalities are available for the same subject. Specifically, we use a large publicly-available dataset of over 20,000 subjects from the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Rhydian Windsor , Amir Jamaludin , Timor Kadir , Andrew Zisserman

Purpose A Magnetic Resonance Imaging (MRI) exam typically consists of several sequences that yield different image contrasts. Each sequence is parameterized through multiple acquisition parameters that influence image contrast,…

Image and Video Processing · Electrical Eng. & Systems 2022-02-23 Jonas Denck , Jens Guehring , Andreas Maier , Eva Rothgang

Multi-contrast Magnetic Resonance Imaging (MRI) generates multiple medical images with rich and complementary information for routine clinical use; however, it suffers from a long acquisition time. Recent works for accelerating MRI, mainly…

Image and Video Processing · Electrical Eng. & Systems 2022-10-28 Lin Zhao , Xiao Chen , Eric Z. Chen , Yikang Liu , Dinggang Shen , Terrence Chen , Shanhui Sun

Brain MRI scans are often found in four modalities, consisting of T1-weighted with and without contrast enhancement (T1ce and T1w), T2-weighted imaging (T2w), and Flair. Leveraging complementary information from these different modalities…

Image and Video Processing · Electrical Eng. & Systems 2025-09-22 Bhavesh Sandbhor , Bheeshm Sharma , Balamurugan Palaniappan

Segmentation models are important tools for the detection and analysis of lesions in brain MRI. Depending on the type of brain pathology that is imaged, MRI scanners can acquire multiple, different image modalities (contrasts). Most…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Anthony P. Addison , Felix Wagner , Wentian Xu , Natalie Voets , Konstantinos Kamnitsas

Self-supervised contrastive learning between pairs of multiple views of the same image has been shown to successfully leverage unlabeled data to produce meaningful visual representations for both natural and medical images. However, there…

Image and Video Processing · Electrical Eng. & Systems 2021-10-19 Yen Nhi Truong Vu , Richard Wang , Niranjan Balachandar , Can Liu , Andrew Y. Ng , Pranav Rajpurkar

Self-supervised image denoising techniques emerged as convenient methods that allow training denoising models without requiring ground-truth noise-free data. Existing methods usually optimize loss metrics that are calculated from multiple…

Complete and high-quality multi-modal Magnetic Resonance Imaging (MRI) is essential for accurate neuro-oncological assessment, as each contrast provides complementary anatomical and pathological information. However, acquiring all…

Image and Video Processing · Electrical Eng. & Systems 2026-05-04 Zaid A. Abod , Furqan Aziz

Self-supervised learning has greatly facilitated medical image analysis by suppressing the training data requirement for real-world applications. Current paradigms predominantly rely on self-supervision within uni-modal image data, thereby…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Shaohao Rui , Lingzhi Chen , Zhenyu Tang , Lilong Wang , Mianxin Liu , Shaoting Zhang , Xiaosong Wang

Magnetic resonance imaging (MRI) is essential for nasopharyngeal carcinoma (NPC) radiotherapy (RT), but practical constraints, such as patient discomfort, long scan times, and high costs often lead to incomplete modalities in clinical…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Yao Pu , Yiming Shi , Zhenxi Zhang , Peixin Yu , Yitao Zhuang , Xiang Wang , Hongzhao Chen , Jing Cai , Ge Ren