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Active localization is the problem of generating robot actions that allow it to maximally disambiguate its pose within a reference map. Traditional approaches to this use an information-theoretic criterion for action selection and…

Robotics · Computer Science 2019-03-06 Sai Krishna , Keehong Seo , Dhaivat Bhatt , Vincent Mai , Krishna Murthy , Liam Paull

Accurate and automatic organ segmentation from 3D radiological scans is an important yet challenging problem for medical image analysis. Specifically, the pancreas demonstrates very high inter-patient anatomical variability in both its…

Computer Vision and Pattern Recognition · Computer Science 2017-02-02 Holger R. Roth , Le Lu , Nathan Lay , Adam P. Harrison , Amal Farag , Andrew Sohn , Ronald M. Summers

Collision avoidance algorithms are essential for safe and efficient robot operation among pedestrians. This work proposes using deep reinforcement (RL) learning as a framework to model the complex interactions and cooperation with nearby,…

Robotics · Computer Science 2021-01-26 Michael Everett , Yu Fan Chen , Jonathan P. How

CT and MRI are two of the most informative modalities in spinal diagnostics and treatment planning. CT is useful when analysing bony structures, while MRI gives information about the soft tissue. Thus, fusing the information of both…

Organ segmentation is a prerequisite for a computer-aided diagnosis (CAD) system to detect pathologies and perform quantitative analysis. For anatomically high-variability abdominal organs such as the pancreas, previous segmentation works…

Computer Vision and Pattern Recognition · Computer Science 2014-08-01 Amal Farag , Le Lu , Evrim Turkbey , Jiamin Liu , Ronald M. Summers

Organ at Risk (OAR) segmentation from CT scans is a key component of the radiotherapy treatment workflow. In recent years, deep learning techniques have shown remarkable potential in automating this process. In this paper, we investigate…

Image and Video Processing · Electrical Eng. & Systems 2023-09-21 Leonardo Crespi , Mattia Portanti , Daniele Loiacono

High quality reconstruction with interventional C-arm cone-beam computed tomography (CBCT) requires exact geometry information. If the geometry information is corrupted, e. g., by unexpected patient or system movement, the measured signal…

Objective : Abdominal anatomy segmentation is crucial for numerous applications from computer-assisted diagnosis to image-guided surgery. In this context, we address fully-automated multi-organ segmentation from abdominal CT and MR images…

Image and Video Processing · Electrical Eng. & Systems 2020-01-29 Pierre-Henri Conze , Ali Emre Kavur , Emilie Cornec-Le Gall , Naciye Sinem Gezer , Yannick Le Meur , M. Alper Selver , François Rousseau

When delineating lesions from medical images, a human expert can always keep in mind the anatomical structure behind the voxels. However, although high-quality (though not perfect) anatomical information can be retrieved from computed…

Image and Video Processing · Electrical Eng. & Systems 2023-12-04 Rongzhao Zhang , Zhian Bai , Ruoying Yu , Wenrao Pang , Lingyun Wang , Lifeng Zhu , Xiaofan Zhang , Huan Zhang , Weiguo Hu

Automatic vertebrae identification and localization from arbitrary CT images is challenging. Vertebrae usually share similar morphological appearance. Because of pathology and the arbitrary field-of-view of CT scans, one can hardly rely on…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Haofu Liao , Addisu Mesfin , Jiebo Luo

The anatomical location of imaging features is of crucial importance for accurate diagnosis in many medical tasks. Convolutional neural networks (CNN) have had huge successes in computer vision, but they lack the natural ability to…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Mohsen Ghafoorian , Nico Karssemeijer , Tom Heskes , Inge van Uden , Clara Sanchez , Geert Litjens , Frank-Erik de Leeuw , Bram van Ginneken , Elena Marchiori , Bram Platel

Data cleaning consumes about 80% of the time spent on data analysis for clinical research projects. This is a much bigger problem in the era of big data and machine learning in the field of medicine where large volumes of data are being…

Medical Physics · Physics 2018-01-03 Timothy Rozario , Troy Long , Mingli Chen , Weiguo Lu , Steve Jiang

Fully-convolutional neural networks have achieved superior performance in a variety of image segmentation tasks. However, their training requires laborious manual annotation of large datasets, as well as acceleration by parallel processors…

Neural and Evolutionary Computing · Computer Science 2018-11-29 Blaine Rister , Darvin Yi , Kaushik Shivakumar , Tomomi Nobashi , Daniel L. Rubin

Deformable image registration, estimating the spatial transformation between different images, is an important task in medical imaging. Many previous studies have used learning-based methods for multi-stage registration to perform 3D image…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Jian-Qing Zheng , Ziyang Wang , Baoru Huang , Ngee Han Lim , Tonia Vincent , Bartlomiej W. Papiez

Pulmonary lobe segmentation is an important task for pulmonary disease related Computer Aided Diagnosis systems (CADs). Classical methods for lobe segmentation rely on successful detection of fissures and other anatomical information such…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Hao Tang , Chupeng Zhang , Xiaohui Xie

Cone-beam computed tomography (CBCT) is an important tool facilitating computer aided interventions, despite often suffering from artifacts that pose challenges for accurate interpretation. While the degraded image quality can affect…

Image and Video Processing · Electrical Eng. & Systems 2024-07-02 Maximilian E. Tschuchnig , Philipp Steininger , Michael Gadermayr

This work is an endeavor to develop a deep learning methodology for automated anatomical labeling of a given region of interest (ROI) in brain computed tomography (CT) scans. We combine both local and global context to obtain a…

Computer Vision and Pattern Recognition · Computer Science 2018-01-23 Srikrishna Varadarajan , Muktabh Mayank Srivastava , Monika Grewal , Pulkit Kumar

Since the mapping relationship between definitized intra-interventional X-ray and undefined pre-interventional Computed Tomography(CT) is uncertain, auxiliary positioning devices or body markers, such as medical implants, are commonly used…

Image and Video Processing · Electrical Eng. & Systems 2021-11-30 Meng Li , Changyan Lin , Heng Wu , Jiasong Li , Hongshuai Cao

In X-ray Computed Tomography (CT), projections from many angles are acquired and used for 3D reconstruction. To make CT suitable for in-line quality control, reducing the number of angles while maintaining reconstruction quality is…

Image and Video Processing · Electrical Eng. & Systems 2025-06-10 Tianyuan Wang , Felix Lucka , Tristan van Leeuwen

Deep learning has led to state-of-the-art results for many medical imaging tasks, such as segmentation of different anatomical structures. With the increased numbers of deep learning publications and openly available code, the approach to…

Image and Video Processing · Electrical Eng. & Systems 2020-05-19 Tom van Sonsbeek , Veronika Cheplygina
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