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Masked Image Modelling (MIM) has been shown to be an efficient self-supervised learning (SSL) pre-training paradigm when paired with transformer architectures and in the presence of a large amount of unlabelled natural images. The…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Alvaro Fernandez-Quilez , Christoffer Gabrielsen Andersen , Trygve Eftestøl , Svein Reidar Kjosavik , Ketil Oppedal

We present an information-theoretic approach to the registration of images with directional information, and especially for diffusion-Weighted Images (DWI), with explicit optimization over the directional scale. We call it Locally Orderless…

计算机视觉与模式识别 · 计算机科学 2021-07-12 Henrik Grønholt Jensen , François Lauze , Sune Darkner

Diffusion magnetic resonance imaging (MRI) is the only imaging modality for non-invasive movement detection of in vivo water molecules, with significant clinical and research applications. Diffusion weighted imaging (DWI) MRI acquired by…

The evaluation and treatment of acute cerebral ischemia requires a technique that can determine the total area of tissue at risk for infarction using diagnostic magnetic resonance imaging (MRI) sequences. Typical MRI data sets consist of…

计算机视觉与模式识别 · 计算机科学 2016-06-14 Vishwa S. Parekh , Jeremy R. Jacobs , Michael A. Jacobs

Prostate cancer (PCa) is the second most common cancer diagnosed among men worldwide. The current PCa diagnostic pathway comes at the cost of substantial overdiagnosis, leading to unnecessary treatment and further testing. Bi-parametric…

图像与视频处理 · 电气工程与系统科学 2021-07-23 Alvaro Fernandez-Quilez , Trygve Eftestøl , Morten Goodwin , Svein Reidar Kjosavik , Ketil Oppedal

Lack of large expert annotated MR datasets makes training deep learning models difficult. Therefore, a cross-modality (MR-CT) deep learning segmentation approach that augments training data using pseudo MR images produced by transforming…

计算机视觉与模式识别 · 计算机科学 2019-07-29 Jue Jiang , Yu-Chi Hu , Neelam Tyagi , Pengpeng Zhang , Andreas Rimner , Joseph O. Deasy , Harini Veeraraghavan

To our knowledge, all deep computer-aided detection and diagnosis (CAD) systems for prostate cancer (PCa) detection consider bi-parametric magnetic resonance imaging (bp-MRI) only, including T2w and ADC sequences while excluding the 4D…

图像与视频处理 · 电气工程与系统科学 2022-07-08 Audrey Duran , Gaspard Dussert , Carole Lartizien

The text to medical image (T2MedI) with latent diffusion model has great potential to alleviate the scarcity of medical imaging data and explore the underlying appearance distribution of lesions in a specific patient status description.…

计算机视觉与模式识别 · 计算机科学 2025-01-09 Xu Han , Fangfang Fan , Jingzhao Rong , Zhen Li , Georges El Fakhri , Qingyu Chen , Xiaofeng Liu

One of the distinct characteristics in radiologists' reading of multiparametric prostate MR scans, using reporting systems such as PI-RADS v2.1, is to score individual types of MR modalities, T2-weighted, diffusion-weighted, and dynamic…

图像与视频处理 · 电气工程与系统科学 2024-01-23 Wen Yan , Bernard Chiu , Ziyi Shen , Qianye Yang , Tom Syer , Zhe Min , Shonit Punwani , Mark Emberton , David Atkinson , Dean C. Barratt , Yipeng Hu

Recent studies on T1-assisted MRI reconstruction for under-sampled images of other modalities have demonstrated the potential of further accelerating MRI acquisition of other modalities. Most of the state-of-the-art approaches have achieved…

图像与视频处理 · 电气工程与系统科学 2021-11-15 Junwei Yang , Xiao-Xin Li , Feihong Liu , Dong Nie , Pietro Lio , Haikun Qi , Dinggang Shen

Text-to-image (T2I) diffusion models lack an efficient mechanism for early quality assessment, leading to costly trial-and-error in multi-generation scenarios such as prompt iteration, agent-based generation, and flow-grpo. We reveal a…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Benlei Cui , Bukun Huang , Zhizeng Ye , Xuemei Dong , Tuo Chen , Hui Xue , Dingkang Yang , Longtao Huang , Jingqun Tang , Haiwen Hong

Recent advancements in deep learning (DL) have significantly advanced medical image analysis. In the field of medical image processing, particularly in histopathology image analysis, the variation in staining protocols and differences in…

图像与视频处理 · 电气工程与系统科学 2024-06-25 Parastoo Sotoudeh Sharifi , M. Omair Ahmad , M. N. S. Swamy

Objective: Latent diffusion models (LDM) could alleviate data scarcity challenges affecting machine learning development for medical imaging. However, medical LDM strategies typically rely on short-prompt text encoders, nonmedical LDMs, or…

图像与视频处理 · 电气工程与系统科学 2026-01-09 Emerson P. Grabke , Babak Taati , Masoom A. Haider

In this paper, we develop a new weakly-supervised learning algorithm to learn to segment cancerous regions in histopathology images. Our work is under a multiple instance learning framework (MIL) with a new formulation, deep weak…

计算机视觉与模式识别 · 计算机科学 2017-08-30 Zhipeng Jia , Xingyi Huang , Eric I-Chao Chang , Yan Xu

The interpretation of prostate MRI suffers from low agreement across radiologists due to the subtle differences between cancer and normal tissue. Image registration addresses this issue by accurately mapping the ground-truth cancer labels…

The popular use of histopathology images, such as hematoxylin and eosin (H&E), has proven to be useful in detecting tumors. However, moving such cancer cases forward for treatment requires accurate on the amount of the human epidermal…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Olaide N. Oyelade , Oliver Hoxey , Yulia Humrye

Volumetric Modulated Arc Therapy (VMAT) is a cornerstone of modern radiation therapy, enabling highly conformal tumor irradiation and healthy-tissue sparing. Yet, its planning solves inverse and nested optimization for multi-leaf…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Isabella Poles , Simon Arberet , Riqiang Gao , Martin Kraus , Marco D. Santambrogio , Florin C. Ghesu , Ali Kamen , Dorin Comaniciu

Breast cancer is a significant cause of death from cancer in women globally, highlighting the need for improved diagnostic imaging to enhance patient outcomes. Accurate tumour identification is essential for diagnosis, treatment, and…

图像与视频处理 · 电气工程与系统科学 2024-05-15 Chi-en Amy Tai , Alexander Wong

Diffusion-weighted imaging (DWI) can support lesion detection and characterization in breast magnetic resonance imaging (MRI), however especially high b-value diffusion-weighted acquisitions can be prone to intensity artifacts that can…

Interpreting traditional B-mode ultrasound images can be challenging due to image artifacts (e.g., shadowing, speckle), leading to low sensitivity and limited diagnostic accuracy. While Magnetic Resonance Imaging (MRI) has been proposed as…