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Supervised deep learning techniques show promise in medical image analysis. However, they require comprehensive annotated data sets, which poses challenges, particularly for rare diseases. Consequently, unsupervised anomaly detection (UAD)…

图像与视频处理 · 电气工程与系统科学 2024-03-22 Finn Behrendt , Debayan Bhattacharya , Lennart Maack , Julia Krüger , Roland Opfer , Robin Mieling , Alexander Schlaefer

This work proves that semantic segmentation on minimally invasive surgical instruments can be improved by using training data that has been augmented through domain adaptation. The benefit of this method is twofold. Firstly, it suppresses…

计算机视觉与模式识别 · 计算机科学 2020-06-08 Iñigo Azqueta-Gavaldon , Florian Fröhlich , Klaus Strobl , Rudolph Triebel

Fundus image segmentation on unseen domains is challenging, especially for the over-parameterized deep models trained on the small medical datasets. To address this challenge, we propose a method named Adaptive Feature-fusion Neural Network…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Jiyuan Zhong , Hu Ke , Ming Yan

The clinical integration of deep learning models for brain tumor diagnosis in neuro-oncology is severely constrained by limited expert-annotated MRI data and substantial inter-institutional domain shift arising from variations in scanners,…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Sapna Sachan , Amulya Kumar Mahto , Prashant Wagambar Patil

Traditional supervised 3D medical image segmentation models need voxel-level annotations, which require huge human effort, time, and cost. Semi-supervised learning (SSL) addresses this limitation of supervised learning by facilitating…

图像与视频处理 · 电气工程与系统科学 2024-07-09 Suruchi Kumari , Aryan Das , Swalpa Kumar Roy , Indu Joshi , Pravendra Singh

Medical images used in clinical practice are heterogeneous and not the same quality as scans studied in academic research. Preprocessing breaks down in extreme cases when anatomy, artifacts, or imaging parameters are unusual or protocols…

图像与视频处理 · 电气工程与系统科学 2022-08-31 Mostafa Mehdipour Ghazi , Mads Nielsen

When the blood supply to the brain is obstructed by a clot, oxygen delivery to brain tissues becomes insufficient, leading to cellular necrosis. In healthcare settings, accurately identifying and delineating ischemic lesion boundaries is…

图像与视频处理 · 电气工程与系统科学 2026-05-22 Sayed Amir Mousavi Mobarakeh

At present, the Synthetic Aperture Radar (SAR) image classification method based on convolution neural network (CNN) has faced some problems such as poor noise resistance and generalization ability. Spiking neural network (SNN) is one of…

计算机视觉与模式识别 · 计算机科学 2021-06-16 Jiankun Chen , Xiaolan Qiu , Chibiao Ding , Yirong Wu

The Segment Anything Model (SAM) exhibits a capability to segment a wide array of objects in natural images, serving as a versatile perceptual tool for various downstream image segmentation tasks. In contrast, medical image segmentation…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Yizhe Zhang , Tao Zhou , Shuo Wang , Ye Wu , Pengfei Gu , Danny Z. Chen

Purpose: To compare the segmentation and detection performance of a deep learning model trained on a database of human-labelled clinical diffusion-weighted (DW) stroke lesions to a model trained on the same database enhanced with synthetic…

Digitization techniques for biomedical images yield different visual patterns in radiological exams. These differences may hamper the use of data-driven approaches for inference over these images, such as Deep Neural Networks. Another…

计算机视觉与模式识别 · 计算机科学 2019-12-10 Hugo Oliveira , Edemir Ferreira , Jefersson A. dos Santos

In this paper, we demonstrate the feasibility and performance of deep residual neural networks for volumetric segmentation of irreversibly damaged brain tissue lesions on T1-weighted MRI scans for chronic stroke patients. A total of 239…

图像与视频处理 · 电气工程与系统科学 2019-11-27 Naofumi Tomita , Steven Jiang , Matthew E. Maeder , Saeed Hassanpour

The analysis of carotid arteries, particularly plaques, in multi-sequence Magnetic Resonance Imaging (MRI) data is crucial for assessing the risk of atherosclerosis and ischemic stroke. In order to evaluate metrics and radiomic features,…

图像与视频处理 · 电气工程与系统科学 2025-07-11 Marie-Christine Pali , Christina Schwaiger , Malik Galijasevic , Valentin K. Ladenhauf , Stephanie Mangesius , Elke R. Gizewski

Automating Multiple Sclerosis (MS) lesion segmentation would be of great benefit in initial diagnosis as well as monitoring disease progression. Deep learning based segmentation models perform well in many domains, but the state-of-the-art…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Liviu Badea , Maria Popa

Unsupervised learning can discover various unseen abnormalities, relying on large-scale unannotated medical images of healthy subjects. Towards this, unsupervised methods reconstruct a 2D/3D single medical image to detect outliers either in…

Image normalization is a building block in medical image analysis. Conventional approaches are customarily utilized on a per-dataset basis. This strategy, however, prevents the current normalization algorithms from fully exploiting the…

机器学习 · 计算机科学 2020-10-06 Pierre-Luc Delisle , Benoit Anctil-Robitaille , Christian Desrosiers , Herve Lombaert

A key challenge in ischemic stroke diagnosis using medical imaging is the accurate localization of the occluded vessel. Current machine learning methods in focus primarily on lesion segmentation, with limited work on vessel localization. In…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Mohamed Hamad , Muhammad Khan , Tamer Khattab , Mohamed Mabrok

The time-consuming task of manual segmentation challenges routine systematic quantification of disease burden. Convolutional neural networks (CNNs) hold significant promise to reliably identify locations and boundaries of tumors from PET…

The data-intensive nature of supervised classification drives the interest of the researchers towards unsupervised approaches, especially for problems such as medical image segmentation, where labeled data is scarce. Building on the recent…

计算机视觉与模式识别 · 计算机科学 2024-11-05 A. Mudit Adityaja , Saurabh J. Shigwan , Nitin Kumar

Precise characterization of stroke lesions from MRI data has immense value in prognosticating clinical and cognitive outcomes following a stroke. Manual stroke lesion segmentation is time-consuming and requires the expertise of neurologists…

图像与视频处理 · 电气工程与系统科学 2025-01-28 Liang Shang , William A. Sethares , Anusha Adluru , Andrew L. Alexander , Vivek Prabhakaran , Veena A. Nair , Nagesh Adluru