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Accurately restoring topology is both challenging and crucial in tubular structure extraction tasks, such as blood vessel segmentation and road network extraction. Diverging from traditional approaches based on pixel-level classification,…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Zhao Zhang , Ziwei Zhao , Dong Wang , Liwei Wang

Versatile medical image segmentation (VMIS) targets the segmentation of multiple classes, while obtaining full annotations for all classes is often impractical due to the time and labor required. Leveraging partially labeled datasets (PLDs)…

计算机视觉与模式识别 · 计算机科学 2025-09-08 Shengqian Zhu , Jiafei Wu , Xiaogang Xu , Chengrong Yu , Ying Song , Zhang Yi , Guangjun Li , Junjie Hu

Separating overlapped nuclei is a major challenge in histopathology image analysis. Recently published approaches have achieved promising overall performance on nuclei segmentation; however, their performance on separating overlapped nuclei…

图像与视频处理 · 电气工程与系统科学 2021-10-01 Haotian Wang , Aleksandar Vakanski , Changfa Shi , Min Xian

Ocular Myasthenia Gravis (OMG) is a rare and challenging disease to detect in its early stages, but symptoms often first appear in the eye muscles, such as drooping eyelids and double vision. Ocular images can be used for early diagnosis by…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Ruiyu Xia , Jianqiang Li , Xi Xu , Guanghui Fu

Tree-like structures, such as blood vessels, often express complexity at very fine scales, requiring high-resolution grids to adequately describe their shape. Such sparse morphology can alternately be represented by locations of centreline…

计算机视觉与模式识别 · 计算机科学 2018-11-09 Kerry Halupka , Rahil Garnavi , Stephen Moore

Vertebral detection and segmentation are critical steps for treatment planning in spine surgery and radiation therapy. Accurate identification and segmentation are complicated in imaging that does not include the full spine, in cases with…

图像与视频处理 · 电气工程与系统科学 2023-11-17 Geoff Klein , Michael Hardisty , Cari Whyne , Anne L. Martel

Coronary artery extraction is a crucial prerequisite for computer-aided diagnosis of coronary artery disease. Accurately extracting the complete coronary tree remains challenging due to several factors, including presence of thin distal…

图像与视频处理 · 电气工程与系统科学 2025-04-03 Yuehui Qiu , Dandan Shan , Yining Wang , Pei Dong , Dijia Wu , Xinnian Yang , Qingqi Hong , Dinggang Shen

We introduce a topology-preserving discretization for coupling incompressible fluids with thin deformable structures, achieving guaranteed leakproofness through preservation of fluid domain connectivity. Our approach leverages a stitching…

计算物理 · 物理学 2026-02-05 Jonathan Panuelos , Eitan Grinspun , David Levin

With the introduction of fully convolutional neural networks, deep learning has raised the benchmark for medical image segmentation on both speed and accuracy, and different networks have been proposed for 2D and 3D segmentation with…

计算机视觉与模式识别 · 计算机科学 2018-09-26 Ken C. L. Wong , Mehdi Moradi , Hui Tang , Tanveer Syeda-Mahmood

Sparsification aims at extracting a reduced core of associations that best preserves both the dynamics and topology of networks while reducing the computational cost of simulations. We show that the semi-metric topology of complex networks…

物理与社会 · 物理学 2025-06-05 David Soriano Paños , Felipe Xavier Costa , Luis M. Rocha

In graph signal processing, learning the weighted connections between nodes from a set of sample signals is a fundamental task when the underlying relationships are not known a priori. This task is typically addressed by finding a graph…

机器学习 · 计算机科学 2025-06-30 Benjamin T. Brown , Haoxiang Zhang , Daniel L. Lau , Gonzalo R. Arce

A novel topological segmentation of retinal images represents blood vessels as connected regions in the continuous image plane, having shape-related analytic and geometric properties. This paper presents topological segmentation results…

计算几何 · 计算机科学 2016-08-05 Martin Brooks

The ability to dynamically extend a model to new data and classes is critical for multiple organ and tumor segmentation. However, due to privacy regulations, accessing previous data and annotations can be problematic in the medical domain.…

图像与视频处理 · 电气工程与系统科学 2023-07-24 Yixiao Zhang , Xinyi Li , Huimiao Chen , Alan Yuille , Yaoyao Liu , Zongwei Zhou

Delineating 3D blood vessels is essential for clinical diagnosis and treatment, however, is challenging due to complex structure variations and varied imaging conditions. Supervised deep learning has demonstrated its superior capacity in…

图像与视频处理 · 电气工程与系统科学 2023-02-08 Huai Chen , Xiuying Wang , Lisheng Wang

Automated segmentation of anatomical structures is a crucial step in image analysis. For lung segmentation in computed tomography, a variety of approaches exist, involving sophisticated pipelines trained and validated on different datasets.…

图像与视频处理 · 电气工程与系统科学 2020-08-21 Johannes Hofmanninger , Florian Prayer , Jeanny Pan , Sebastian Rohrich , Helmut Prosch , Georg Langs

The vascular structure of blood vessels is important in diagnosing retinal conditions such as glaucoma and diabetic retinopathy. Accurate segmentation of these vessels can help in detecting retinal objects such as the optic disc and optic…

图像与视频处理 · 电气工程与系统科学 2020-12-18 Abdullah Sarhan , Jon Rokne , Reda Alhajj , Andrew Crichton

Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in…

计算机视觉与模式识别 · 计算机科学 2018-03-29 Xuefei Zhe , Shifeng Chen , Hong Yan

This paper proposes a novel topological learning framework that integrates networks of different sizes and topology through persistent homology. Such challenging task is made possible through the introduction of a computationally efficient…

神经元与认知 · 定量生物学 2023-01-30 Tananun Songdechakraiwut , Moo K. Chung

Medical image segmentation is fundamental for computer-aided diagnostics, providing accurate delineation of anatomical structures and pathological regions. While common metrics such as Accuracy, DSC, IoU, and HD primarily quantify spatial…

图像与视频处理 · 电气工程与系统科学 2025-06-16 Wenhao Liang , Wei Zhang , Lin Yue , Miao Xu , Olaf Maennel , Weitong Chen

Pancreas segmentation in medical image processing is a persistent challenge due to its small size, low contrast against adjacent tissues, and significant topological variations. Traditional level set methods drive boundary evolution using…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Yue Gou , Fanghui Song , Yuming Xing , Shengzhu Shi , Zhichang Guo , Boying Wu