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3D ultrasound (US) imaging has shown significant benefits in enhancing the outcomes of percutaneous liver tumour ablation. Its clinical integration is crucial for transitioning 3D US into the therapeutic domain. However, challenges of…

Image and Video Processing · Electrical Eng. & Systems 2025-06-27 Shuwei Xing , Derek W. Cool , David Tessier , Elvis C. S. Chen , Terry M. Peters , Aaron Fenster

Noise and artifacts during computed tomography (CT) scans are a fundamental challenge affecting disease diagnosis. However, current methods either involve excessively long reconstruction times or rely on data-driven models for optimization,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Guoquan Wei , Liu Shi , Shaoyu Wang , Mohan Li , Cunfeng Wei , Qiegen Liu

With the growing volume of CT examinations, there is an increasing demand for automated tools such as organ segmentation, abnormality detection, and report generation to support radiologists in managing their clinical workload. Multi-label…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Theo Di Piazza , Carole Lazarus , Olivier Nempont , Loic Boussel

Computed tomography (CT) is indispensable for clinical diagnosis and image-guided interventions but exposes patients to ionizing radiation, motivating the development of safer imaging alternatives. Ultrasound (US) is non-ionizing and widely…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Sapna Sachan , Amulya Kumar Mahto

This paper presents a method to register a preoperative CT volume to a sparse set of intraoperative US slices. In the context of percutaneous renal puncture, the aim is to transfer a planning information to an intraoperative coordinate…

Medical Physics · Physics 2007-05-23 Antoine Leroy , Pierre Mozer , Yohan Payan , Jocelyne Troccaz

Accurate spine segmentation allows for improved identification and quantitative characterization of abnormalities of the vertebra, such as vertebral fractures. However, in existing automated vertebra segmentation methods on computed…

Computer Vision and Pattern Recognition · Computer Science 2016-06-14 Yinong Wang , Jianhua Yao , Holger R. Roth , Joseph E. Burns , Ronald M. Summers

With the increasing number of CT scan examinations, there is a need for automated methods such as organ segmentation, anomaly detection and report generation to assist radiologists in managing their increasing workload. Multi-label…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Theo Di Piazza , Carole Lazarus , Olivier Nempont , Loic Boussel

Assistive robots for healthcare have seen a growing demand due to the great potential of relieving medical practitioners from routine jobs. In this paper, we investigate the development of an optimization-based control framework for an…

Robotics · Computer Science 2022-03-07 Anqing Duan , Maria Victorova , Jingyuan Zhao , Yongping Zheng , David Navarro-Alarcon

Coronary CT angiography (CCTA) and intravascular ultrasound (IVUS) provide complementary information for coronary artery disease assessment, making their registration valuable for comprehensive analysis. However, existing registration…

Image and Video Processing · Electrical Eng. & Systems 2024-12-24 R. L. M. van Herten , José P. Henriques , R. Nils Planken , Joost Daemen , Eline M. J. Hartman , Jolanda J. Wentzel , Ivana Išgum

Recent advances in computed tomography (CT) imaging, especially with dual-robot systems, have introduced new challenges for scan trajectory optimization. This paper presents a novel approach using Gated Recurrent Units (GRUs) to optimize CT…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Yuedong Yuan , Linda-Sophie Schneider , Andreas Maier

Graph convolutional network based methods that model the body-joints' relations, have recently shown great promise in 3D skeleton-based human motion prediction. However, these methods have two critical issues: first, deep graph convolutions…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Maosen Li , Siheng Chen , Zijing Zhang , Lingxi Xie , Qi Tian , Ya Zhang

Human skeleton information is important in skeleton-based action recognition, which provides a simple and efficient way to describe human pose. However, existing skeleton-based methods focus more on the skeleton, ignoring the objects…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Hao Wen , Ziqian Lu , Fengli Shen , Zhe-Ming Lu , Jialin Cui

Non-rigid alignment of point clouds is crucial for scene understanding, reconstruction, and various computer vision and robotics tasks. Recent advancements in implicit deformation networks for non-rigid registration have significantly…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Mingyang Zhao , Gaofeng Meng , Dong-Ming Yan

Combining skeleton structure with graph convolutional networks has achieved remarkable performance in human action recognition. Since current research focuses on designing basic graph for representing skeleton data, these embedding features…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Dong Yang , Monica Mengqi Li , Hong Fu , Jicong Fan , Zhao Zhang , Howard Leung

The majority of current research in deep learning based image registration addresses inter-patient brain registration with moderate deformation magnitudes. The recent Learn2Reg medical registration benchmark has demonstrated that…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Mattias P. Heinrich , Lasse Hansen

Shortest path search is a core operation in graph-based applications, yet existing methods face important limitations. Classical algorithms such as Dijkstra's and A* become inefficient as graphs grow more complex, while index-based…

Machine Learning · Computer Science 2025-08-05 Tiantian Liu , Xiao Li , Huan Li , Hua Lu , Christian S. Jensen , Jianliang Xu

Graph convolutional networks (GCNs), which generalize CNNs to more generic non-Euclidean structures, have achieved remarkable performance for skeleton-based action recognition. However, there still exist several issues in the previous…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Lei Shi , Yifan Zhang , Jian Cheng , Hanqing Lu

Soft-tissue surgeries, such as tumor resections, are complicated by tissue deformations that can obscure the accurate location and shape of tissues. By representing tissue surfaces as point clouds and applying non-rigid point cloud…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Sara Monji-Azad , Marvin Kinz , Siddharth Kothari , Robin Khanna , Amrei Carla Mihan , David Maennel , Claudia Scherl , Juergen Hesser

In this article, we present a graph-based method using a cubic template for volumetric segmentation of vertebrae in magnetic resonance imaging (MRI) acquisitions. The user can define the degree of deviation from a regular cube via a…

Computer Vision and Pattern Recognition · Computer Science 2015-06-19 Robert Schwarzenberg , Bernd Freisleben , Christopher Nimsky , Jan Egger

Accurate segmentation of surgical instrument tip is an important task for enabling downstream applications in robotic surgery, such as surgical skill assessment, tool-tissue interaction and deformation modeling, as well as surgical…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Jiaqi Liu , Yonghao Long , Kai Chen , Cheuk Hei Leung , Zerui Wang , Qi Dou