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Semantic segmentation neural networks require pixel-level annotations in large quantities to achieve a good performance. In the medical domain, such annotations are expensive, because they are time-consuming and require expert knowledge.…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Grzegorz Chlebus , Andrea Schenk , Horst K. Hahn , Bram van Ginneken , Hans Meine

Accurate tissue segmentation of thick-slice fetal brain magnetic resonance (MR) scans is crucial for both reconstruction of isotropic brain MR volumes and the quantification of fetal brain development. However, this task is challenging due…

图像与视频处理 · 电气工程与系统科学 2023-12-05 Shijie Huang , Xukun Zhang , Zhiming Cui , He Zhang , Geng Chen , Dinggang Shen

In clinical imaging, magnetic resonance (MR) image volumes are often acquired as stacks of 2D slices with decreased scan times, improved signal-to-noise ratio, and image contrasts unique to 2D MR pulse sequences. While this is sufficient…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Samuel W. Remedios , Shuwen Wei , Shuo Han , Jinwei Zhang , Aaron Carass , Kurt G. Schilling , Dzung L. Pham , Jerry L. Prince , Blake E. Dewey

Point normal, as an intrinsic geometric property of 3D objects, not only serves conventional geometric tasks such as surface consolidation and reconstruction, but also facilitates cutting-edge learning-based techniques for shape analysis…

计算机视觉与模式识别 · 计算机科学 2022-03-24 Haoran Zhou , Honghua Chen , Yingkui Zhang , Mingqiang Wei , Haoran Xie , Jun Wang , Tong Lu , Jing Qin , Xiao-Ping Zhang

In medical imaging, scans often reveal objects with varied contrasts but consistent internal intensities or textures. This characteristic enables the use of low-frequency approximations for tasks such as segmentation and deformation field…

图像与视频处理 · 电气工程与系统科学 2024-01-19 Hang Zhang , Xiang Chen , Rongguang Wang , Renjiu Hu , Dongdong Liu , Gaolei Li

2D single-slice abdominal computed tomography (CT) enables the assessment of body habitus and organ health with low radiation exposure. However, single-slice data necessitates the use of 2D networks for segmentation, but these networks…

We consider training classifiers for 3D medical images using only one binary label for the entire volume rather than a label for each 2D slice. In such weakly supervised settings, can we learn accurate classifiers for slice-level…

机器学习 · 计算机科学 2026-05-27 Ethan Harvey , Dennis Johan Loevlie , Michael C. Hughes

Skull stripping for brain MR images is a basic segmentation task. Although many methods have been proposed, most of them focused mainly on the adult MR images. Skull stripping for infant MR images is more challenging due to the small size…

计算机视觉与模式识别 · 计算机科学 2019-10-11 Qian Zhang , Li Wang , Xiaopeng Zong , Weili Lin , Gang Li , Dinggang Shen

3D image segmentation is one of the most important and ubiquitous problems in medical image processing. It provides detailed quantitative analysis for accurate disease diagnosis, abnormal detection, and classification. Currently deep…

计算机视觉与模式识别 · 计算机科学 2019-06-19 Zhenxi Zhang , Jie Li , Zhusi Zhong , Zhicheng Jiao , Xinbo Gao

Methods: Our deep learning model, called AnatomyNet, segments OARs from head and neck CT images in an end-to-end fashion, receiving whole-volume HaN CT images as input and generating masks of all OARs of interest in one shot. AnatomyNet is…

计算机视觉与模式识别 · 计算机科学 2019-03-06 Wentao Zhu , Yufang Huang , Liang Zeng , Xuming Chen , Yong Liu , Zhen Qian , Nan Du , Wei Fan , Xiaohui Xie

Pathological brain appearances may be so heterogeneous as to be intelligible only as anomalies, defined by their deviation from normality rather than any specific pathological characteristic. Amongst the hardest tasks in medical imaging,…

图像与视频处理 · 电气工程与系统科学 2021-02-24 Walter Hugo Lopez Pinaya , Petru-Daniel Tudosiu , Robert Gray , Geraint Rees , Parashkev Nachev , Sebastien Ourselin , M. Jorge Cardoso

Medical image segmentation faces critical challenges in semi-supervised learning scenarios due to severe annotation scarcity requiring expert radiological knowledge, significant inter-annotator variability across different viewpoints and…

图像与视频处理 · 电气工程与系统科学 2026-01-06 Zihan Li , Dandan Shan , Yunxiang Li , Paul E. Kinahan , Qingqi Hong

In this paper, an automatic algorithm aimed at volumetric segmentation of acute ischemic stroke lesion in non-contrast computed tomography brain 3D images is proposed. Our deep-learning approach is based on the popular 3D U-Net…

图像与视频处理 · 电气工程与系统科学 2023-10-31 A. V. Dobshik , S. K. Verbitskiy , I. A. Pestunov , K. M. Sherman , Yu. N. Sinyavskiy , A. A. Tulupov , V. B. Berikov

Volumetric lesion segmentation from computed tomography (CT) images is a powerful means to precisely assess multiple time-point lesion/tumor changes. However, because manual 3D segmentation is prohibitively time consuming, current practices…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Jinzheng Cai , Youbao Tang , Le Lu , Adam P. Harrison , Ke Yan , Jing Xiao , Lin Yang , Ronald M. Summers

Neuroanatomical segmentation in magnetic resonance imaging (MRI) of the brain is a prerequisite for volume, thickness and shape measurements. This work introduces a new highly accurate and versatile method based on 3D convolutional neural…

定量方法 · 定量生物学 2019-02-07 Philip Novosad , Vladimir Fonov , D. Louis Collins

3D Convolutional Neural Networks (CNNs) have been widely adopted for airway segmentation. The performance of 3D CNNs is greatly influenced by the dataset while the public airway datasets are mainly clean CT scans with coarse annotation,…

图像与视频处理 · 电气工程与系统科学 2021-09-08 Minghui Zhang , Xin Yu , Hanxiao Zhang , Hao Zheng , Weihao Yu , Hong Pan , Xiangran Cai , Yun Gu

Network slicing plays a crucial role in the progression of 5G and beyond, facilitating dedicated logical networks to meet diverse and specific service requirements. The principle of End-to-End (E2E) slice includes not only a service chain…

网络与互联网体系结构 · 计算机科学 2023-11-30 Viswanath KumarSkandPriya , Abdulhalim Dandoush , Gladys Diaz

In the realm of medical diagnostics, rapid advancements in Artificial Intelligence (AI) have significantly yielded remarkable improvements in brain tumor segmentation. Encoder-Decoder architectures, such as U-Net, have played a…

计算机视觉与模式识别 · 计算机科学 2025-10-23 Eyad Gad , Seif Soliman , M. Saeed Darweesh

In the realm of medical 3D data, such as CT and MRI images, prevalent anisotropic resolution is characterized by high intra-slice but diminished inter-slice resolution. The lowered resolution between adjacent slices poses challenges,…

图像与视频处理 · 电气工程与系统科学 2024-04-09 Wei Fang , Yuxing Tang , Heng Guo , Mingze Yuan , Tony C. W. Mok , Ke Yan , Jiawen Yao , Xin Chen , Zaiyi Liu , Le Lu , Ling Zhang , Minfeng Xu

We propose a dual pathway, 11-layers deep, three-dimensional Convolutional Neural Network for the challenging task of brain lesion segmentation. The devised architecture is the result of an in-depth analysis of the limitations of current…