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We propose a new method to automatically contour the left ventricle on 2D echocardiographic images. Unlike most existing segmentation methods, which are based on predicting segmentation masks, we focus at predicting the endocardial contour…

图像与视频处理 · 电气工程与系统科学 2022-07-14 Alberto Gomez , Mihaela Porumb , Angela Mumith , Thierry Judge , Shan Gao , Woo-Jin Cho Kim , Jorge Oliveira , Agis Chartsias

Automatic localization and segmentation of organs-at-risk (OAR) in CT are essential pre-processing steps in medical image analysis tasks, such as radiation therapy planning. For instance, the segmentation of OAR surrounding tumors enables…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Fernando Navarro , Guido Sasahara , Suprosanna Shit , Ivan Ezhov , Jan C. Peeken , Stephanie E. Combs , Bjoern H. Menze

In recent years, anomaly detection has become an essential field in medical image analysis. Most current anomaly detection methods for medical images are based on image reconstruction. In this work, we propose a novel anomaly detection…

计算机视觉与模式识别 · 计算机科学 2023-01-20 Florentin Bieder , Julia Wolleb , Robin Sandkühler , Philippe C. Cattin

In machine learning, Optimal Transport (OT) theory is extensively utilized to compare probability distributions across various applications, such as graph data represented by node distributions and image data represented by pixel…

机器学习 · 计算机科学 2025-01-30 Jianming Huang , Xun Su , Zhongxi Fang , Hiroyuki Kasai

Real-time localization of prostate gland in trans-rectal ultrasound images is a key technology that is required to automate the ultrasound guided prostate biopsy procedures. In this paper, we propose a new deep learning based approach which…

计算机视觉与模式识别 · 计算机科学 2018-05-29 Ahmet Tuysuzoglu , Jeremy Tan , Kareem Eissa , Atilla P. Kiraly , Mamadou Diallo , Ali Kamen

In this paper, we propose a novel deep learning framework for anatomy segmentation and automatic landmark- ing. Specifically, we focus on the challenging problem of mandible segmentation from cone-beam computed tomography (CBCT) scans and…

计算机视觉与模式识别 · 计算机科学 2018-10-10 Neslisah Torosdagli , Denise K. Liberton , Payal Verma , Murat Sincan , Janice S. Lee , Ulas Bagci

Action Units (AUs) are geometrically-based atomic facial muscle movements known to produce appearance changes at specific facial locations. Motivated by this observation we propose a novel AU modelling problem that consists of jointly…

计算机视觉与模式识别 · 计算机科学 2020-04-15 Ioanna Ntinou , Enrique Sanchez , Adrian Bulat , Michel Valstar , Georgios Tzimiropoulos

This paper proposes a semidefinite relaxation for landmark-based localization with unknown data associations in planar environments. The proposed method simultaneously solves for the optimal robot states and data associations in a globally…

机器人学 · 计算机科学 2025-08-05 Vassili Korotkine , Mitchell Cohen , James Richard Forbes

Artificial intelligence (AI) technology is increasingly used for digital orthodontics, but one of the challenges is to automatically and accurately detect tooth landmarks and axes. This is partly because of sophisticated geometric…

图像与视频处理 · 电气工程与系统科学 2021-11-10 Guangshun Wei , Zhiming Cui , Jie Zhu , Lei Yang , Yuanfeng Zhou , Pradeep Singh , Min Gu , Wenping Wang

Localization of anatomical landmarks to perform two-dimensional measurements in echocardiography is part of routine clinical workflow in cardiac disease diagnosis. Automatic localization of those landmarks is highly desirable to improve…

计算机视觉与模式识别 · 计算机科学 2021-01-28 Jianzhe Lin , Ghazal Sahebzamani , Christina Luong , Fatemeh Taheri Dezaki , Mohammad Jafari , Purang Abolmaesumi , Teresa Tsang

A common problem which is faced by the researchers when dealing with arterial carotid imaging data is the registration of the geometrical structures between different imaging modalities or different timesteps. The use of the "Patient…

Mapping and localization are two essential tasks for mobile robots in real-world applications. However, largescale and dynamic scenes challenge the accuracy and robustness of most current mature solutions. This situation becomes even worse…

机器人学 · 计算机科学 2022-01-19 Fan Wang , Chaofan Zhang , Fulin Tang , Hongkui Jiang , Yihong Wu , Yong Liu

We consider the visual feature selection to improve the estimation quality required for the accurate navigation of a robot. We build upon a key property that asserts: contributions of trackable features (landmarks) appear linearly in the…

机器人学 · 计算机科学 2019-02-05 Hossein K. Mousavi , Nader Motee

In this work, we propose to explicitly use the landmarks of prostate to guide the MR-TRUS image registration. We first train a deep neural network to automatically localize a set of meaningful landmarks, and then directly generate the…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Xinrui Song , Xuanang Xu , Sheng Xu , Baris Turkbey , Bradford J. Wood , Thomas Sanford , Pingkun Yan

Facial landmark detection is an important task in computer vision with numerous applications, such as head pose estimation, expression analysis, face swapping, etc. Heatmap regression-based methods have been widely used to achieve…

计算机视觉与模式识别 · 计算机科学 2025-08-22 Chiao-An Yang , Raymond A. Yeh

To support minimally-invasive intraoperative mitral valve repair, quantitative measurements from the valve can be obtained using an infra-red tracked stylus. It is desirable to view such manually measured points together with the endoscopic…

This work presents a novel approach to achieving temporally consistent mitral annulus landmark localization in echocardiography videos using sparse annotations. Our method introduces a self-supervised loss term that enforces temporal…

计算机视觉与模式识别 · 计算机科学 2026-02-09 Gino E. Jansen , Mark J. Schuuring , Berto J. Bouma , Ivana Išgum

A common way to implement navigation in mobile robots is through the use of landmarks. In this case, the main goal of the controller is to make progress toward a goal location (stability), while avoiding the boundary of the environment…

动力系统 · 数学 2022-09-16 Chenfei Wang , Roberto Tron

This paper introduces the DeepATLAS foundational model for localization tasks in the domain of high-dimensional biomedical data. Upon convergence of the proposed self-supervised objective, a pretrained model maps an input to an…

计算机视觉与模式识别 · 计算机科学 2024-02-16 Peter D. Chang

Registration of diffusion MRI tractography is an essential step for analyzing group similarities and variations in the brain's white matter (WM). Streamline-based registration approaches can leverage the 3D geometric information of fiber…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Junyi Wang , Mubai Du , Ye Wu , Yijie Li , William M. Wells , Lauren J. O'Donnell , Fan Zhang