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Unsupervised learning strategy is widely adopted by the deformable registration models due to the lack of ground truth of deformation fields. These models typically depend on the intensity-based similarity loss to obtain the learning…

Image and Video Processing · Electrical Eng. & Systems 2021-12-21 Luyi Han , Haoran Dou , Yunzhi Huang , Pew-Thian Yap

This paper proposes a 3D attention-based U-Net architecture for multi-region segmentation of brain tumors using a single stacked multi-modal volume created by combining three non-native MRI volumes. The attention mechanism added to the…

Image and Video Processing · Electrical Eng. & Systems 2023-05-11 Maryann M. Gitonga

Motivation: High resolution 2D whole slide imaging provides rich information about the tissue structure. This information can be a lot richer if these 2D images can be stacked into a 3D tissue volume. A 3D analysis, however, requires…

In the context of computer assist surgical techniques, a new elastic registration method of 3D meshes is presented. In our applications, one mesh is a high density mesh (30000 vertexes), the second is a low density one (1000 vertexes).…

Medical Physics · Physics 2016-08-16 Maxime Berar , Michel Desvignes , Gérard Bailly , Yohan Payan

In image-guided liver surgery, 3D-3D non-rigid registration methods play a crucial role in estimating the mapping between the preoperative model and the intraoperative surface represented as point clouds, addressing the challenge of tissue…

Image and Video Processing · Electrical Eng. & Systems 2025-03-18 Zixin Yang , Richard Simon , Kelly Merrell , Cristian. A. Linte

This paper introduces a learning-based modeling framework for a magnetically steerable soft suction device designed for endoscopic endonasal brain tumor resection. The device is miniaturized (4 mm outer diameter, 2 mm inner diameter, 40 mm…

Robotics · Computer Science 2026-02-06 Majid Roshanfar , Alex Zhang , Changyan He , Amir Hooshiar , Dale J. Podolsky , Thomas Looi , Eric Diller

Automation of brain tumor segmentation in 3D magnetic resonance images (MRIs) is key to assess the diagnostic and treatment of the disease. In recent years, convolutional neural networks (CNNs) have shown improved results in the task.…

Image and Video Processing · Electrical Eng. & Systems 2021-01-01 Laura Mora Ballestar , Veronica Vilaplana

Brain tumor segmentation is a challenging problem in medical image analysis. The endpoint is to generate the salient masks that accurately identify brain tumor regions in an fMRI screening. In this paper, we propose a novel attention gate…

Image and Video Processing · Electrical Eng. & Systems 2021-07-08 Tim Cvetko

Identification of tumor margins is essential for surgical decision-making for glioblastoma patients and provides reliable assistance for neurosurgeons. Despite improvements in deep learning architectures for tumor segmentation over the…

Image and Video Processing · Electrical Eng. & Systems 2024-04-11 Tianyi Ren , Abhishek Sharma , Juampablo Heras Rivera , Harshitha Rebala , Ethan Honey , Agamdeep Chopra , Jacob Ruzevick , Mehmet Kurt

Nonlinear registration of 2D histological sections with corresponding slices of MRI data is a critical step of 3D histology reconstruction. This task is difficult due to the large differences in image contrast and resolution, as well as the…

Computer Vision and Pattern Recognition · Computer Science 2018-09-28 Juan Eugenio Iglesias , Marc Modat , Loic Peter , Allison Stevens , Roberto Annunziata , Tom Vercauteren , Ed Lein , Bruce Fischl , Sebastien Ourselin

Breast cancer remains a critical global health challenge, necessitating early and accurate detection for effective treatment. This paper introduces a methodology that combines automated image augmentation selection (RandAugment) with search…

Image and Video Processing · Electrical Eng. & Systems 2023-11-21 Leon Hamnett , Mary Adewunmi , Modinat Abayomi , Kayode Raheem , Fahad Ahmed

Background and Purpose: Voxel-based analysis (VBA) helps to identify dose-sensitive regions by aligning individual dose distributions within a common coordinate system (CCS). Accurate deformable image registration (DIR) is essential for…

Medical Physics · Physics 2025-09-26 Xingyue Ruan , Xia Li , Muheng Li , Barbara Bachtiary , Antony Lomax , Zhiling Chen , Ye Zhang

Accurate and real-time surgical instrument segmentation is important in the endoscopic vision of robot-assisted surgery, and significant challenges are posed by frequent instrument-tissue contacts and continuous change of observation…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Fangbo Qin , Shan Lin , Yangming Li , Randall A. Bly , Kris S. Moe , Blake Hannaford

Cancer is one of the leading causes of death worldwide, and head and neck (H&N) cancer is amongst the most prevalent types. Positron emission tomography and computed tomography are used to detect, segment and quantify the tumor region.…

Image and Video Processing · Electrical Eng. & Systems 2022-05-13 Ikboljon Sobirov , Otabek Nazarov , Hussain Alasmawi , Mohammad Yaqub

Automatic segmentation of head and neck cancer (HNC) tumors and lymph nodes plays a crucial role in the optimization treatment strategy and prognosis analysis. This study aims to employ nnU-Net for automatic segmentation and radiomics for…

Image and Video Processing · Electrical Eng. & Systems 2022-11-21 Hui Xu , Yihao Li , Wei Zhao , Gwenolé Quellec , Lijun Lu , Mathieu Hatt

AI-assisted surgeries have drawn the attention of the medical image research community due to their real-world impact on improving surgery success rates. For image-guided surgeries, such as Cochlear Implants (CIs), accurate object…

Image and Video Processing · Electrical Eng. & Systems 2023-02-17 Yike Zhang , Jack Noble

Deformable image registration plays an essential role in various medical image tasks. Existing deep learning-based deformable registration frameworks primarily utilize convolutional neural networks (CNNs) or Transformers to learn features…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Jiong Wu , Kuang Gong

Current neurosurgical procedures utilize medical images of various modalities to enable the precise location of tumors and critical brain structures to plan accurate brain tumor resection. The difficulty of using preoperative images during…

Accurate registration of medical images is vital for doctor's diagnosis and quantitative analysis. In this paper, we propose a new deformable medical image registration method based on average geometric transformations and VoxelMorph CNN…

Computer Vision and Pattern Recognition · Computer Science 2019-07-24 Yongpei Zhu , Zicong Zhou , Guojun Liao , Kehong Yuan

Esophageal cancer is among the most common types of cancer worldwide. It is traditionally treated using open esophagectomy, but in recent years, robot-assisted minimally invasive esophagectomy (RAMIE) has emerged as a promising alternative.…