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Magnetic resonance imaging (MRI) is an invaluable tool for clinical and research applications. Yet, variations in scanners and acquisition parameters cause inconsistencies in image contrast, hindering data comparability and reproducibility…

图像与视频处理 · 电气工程与系统科学 2025-09-09 Daniel Scholz , Ayhan Can Erdur , Robbie Holland , Viktoria Ehm , Jan C. Peeken , Benedikt Wiestler , Daniel Rueckert

The prime goal of digital imaging techniques is to reproduce the realistic appearance of a scene. Low Dynamic Range (LDR) cameras are incapable of representing the wide dynamic range of the real-world scene. The captured images turn out to…

计算机视觉与模式识别 · 计算机科学 2021-10-18 Prarabdh Raipurkar , Rohil Pal , Shanmuganathan Raman

Multimodal Large Language Models (MLLMs) have shown impressive performance in vision and text tasks. However, hallucination remains a major challenge, especially in fields like healthcare where details are critical. In this work, we show…

计算与语言 · 计算机科学 2025-02-24 Yun-Wei Chu , Kai Zhang , Christopher Malon , Martin Renqiang Min

While multi-modal large language models (MLLMs) have made significant progress in recent years, the issue of hallucinations remains a major challenge. To mitigate this phenomenon, existing solutions either introduce additional data for…

计算机视觉与模式识别 · 计算机科学 2025-10-23 Fengyuan Sun , Hui Chen , Xinhao Xu , Dandan Zheng , Jingdong Chen , Jun Zhou , Jungong Han , Guiguang Ding

Reconstructing visual information from brain activity bridges the gap between neuroscience and computer vision. Even though progress has been made in decoding images from fMRI using generative models, a challenge remains in accurately…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Shiyi Zhang , Dong Liang , Hairong Zheng , Yihang Zhou

Hyperspectral images (HSIs) are inevitably degraded by a mixture of various types of noise, such as Gaussian noise, impulse noise, stripe noise, and dead pixels, which greatly limits the subsequent applications. Although various denoising…

图像与视频处理 · 电气工程与系统科学 2024-01-12 Dongyi Li , Dong Chu , Xiaobin Guan , Wei He , Huanfeng Shen

Accurately segmenting brain lesions in MRI scans is critical for providing patients with prognoses and neurological monitoring. However, the performance of CNN-based segmentation methods is constrained by the limited training set size.…

图像与视频处理 · 电气工程与系统科学 2023-07-06 Jiayu Huo , Yang Liu , Xi Ouyang , Alejandro Granados , Sebastien Ourselin , Rachel Sparks

A resolution enhancement technique for optical coherence tomography (OCT), based on Generative Adversarial Networks (GANs), was developed and investigated. GANs have been previously used for resolution enhancement of photography and optical…

图像与视频处理 · 电气工程与系统科学 2021-01-19 Kaicheng Liang , Xinyu Liu , Si Chen , Jun Xie , Wei Qing Lee , Linbo Liu , Hwee Kuan Lee

Generative models are increasingly used to improve the quality of medical imaging, such as reconstruction of magnetic resonance images and computed tomography. However, it is well-known that such models are susceptible to hallucinations:…

图像与视频处理 · 电气工程与系统科学 2026-02-24 Suna Buğday , Yvan Saeys , Jonathan Peck

High-resolution (HR) magnetic resonance imaging is critical in aiding doctors in their diagnoses and image-guided treatments. However, acquiring HR images can be time-consuming and costly. Consequently, deep learning-based super-resolution…

图像与视频处理 · 电气工程与系统科学 2024-10-21 Jianan Liu , Hao Li , Tao Huang , Euijoon Ahn , Kang Han , Adeel Razi , Wei Xiang , Jinman Kim , David Dagan Feng

Computer-generated holographic (CGH) displays show great potential and are emerging as the next-generation displays for augmented and virtual reality, and automotive heads-up displays. One of the critical problems harming the wide adoption…

人机交互 · 计算机科学 2021-08-16 Praneeth Chakravarthula , Zhan Zhang , Okan Tursun , Piotr Didyk , Qi Sun , Henry Fuchs

This paper demonstrates a self-supervised framework for learning voxel-wise coarse-to-fine representations tailored for dense downstream tasks. Our approach stems from the observation that existing methods for hierarchical representation…

计算机视觉与模式识别 · 计算机科学 2024-05-28 Eytan Kats , Jochen G. Hirsch , Mattias P. Heinrich

A common and fundamental limitation of Generative AI (GenAI) is its propensity to hallucinate. While large language models (LLM) have taken the world by storm, without eliminating or at least reducing hallucinations, real-world GenAI…

机器学习 · 计算机科学 2024-12-03 Patrice Béchard , Orlando Marquez Ayala

Retrieval Augmented Generation (RAG) has emerged as an effective solution for mitigating hallucinations in Large Language Models (LLMs). The retrieval stage in RAG typically involves a pre-trained embedding model, which converts queries and…

机器学习 · 计算机科学 2024-03-13 Mingtian Zhang , Shawn Lan , Peter Hayes , David Barber

Ultra-low-field (ULF) MRI offers portable and accessible neuroimaging but suffers from reduced signal-to-noise ratio and limited spatial resolution compared to high-field (HF) systems. Acquiring paired ULF-HF data for supervised enhancement…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Toufiq Musah , Salvatore Calcagno , Federica Proietto Salanitri , Xiaomeng Li , Maruf Adewole , Marawan Elbatel

Tuning the regularization hyperparameter $\alpha$ in inverse problems has been a longstanding problem. This is particularly true in the case of fetal brain magnetic resonance imaging, where an isotropic high-resolution volume is…

图像与视频处理 · 电气工程与系统科学 2023-04-06 Priscille de Dumast , Thomas Sanchez , Hélène Lajous , Meritxell Bach Cuadra

Three-dimensional (3D) imaging is popular in medical applications, however, anisotropic 3D volumes with thick, low-spatial-resolution slices are often acquired to reduce scan times. Deep learning (DL) offers a solution to recover…

计算机视觉与模式识别 · 计算机科学 2024-02-06 Michele Pascale , Vivek Muthurangu , Javier Montalt Tordera , Heather E Fitzke , Gauraang Bhatnagar , Stuart Taylor , Jennifer Steeden

Large language models (LLM) hold significant potential for applications in biomedicine, but they struggle with hallucinations and outdated knowledge. While retrieval-augmented generation (RAG) is generally employed to address these issues,…

计算与语言 · 计算机科学 2025-09-23 Jiwoong Sohn , Yein Park , Chanwoong Yoon , Sihyeon Park , Hyeon Hwang , Mujeen Sung , Hyunjae Kim , Jaewoo Kang

Data augmentations are widely used in training medical image deep learning models to increase the diversity and size of sparse datasets. However, commonly used augmentation techniques can result in loss of clinically relevant information…

图像与视频处理 · 电气工程与系统科学 2024-04-18 Adrit Rao , Andrea Fisher , Ken Chang , John Christopher Panagides , Katherine McNamara , Joon-Young Lee , Oliver Aalami

Existing learning models often utilise CT-scan images to predict lung diseases. These models are posed by high uncertainties that affect lung segmentation and visual feature learning. We introduce MARL, a novel Multimodal Attentional…

计算机视觉与模式识别 · 计算机科学 2021-05-04 Ali Hamdi , Amr Aboeleneen , Khaled Shaban