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Background and Purpose: Accurate motion tracking in MRI-guided Radiotherapy (MRIgRT) is essential for effective treatment delivery. This study aimed to enhance motion tracking precision in MRIgRT through an automatic real-time markerless…

Image and Video Processing · Electrical Eng. & Systems 2025-07-08 Shengqi Chen , Zilin Wang , Jianrong Dai , Shirui Qin , Ying Cao , Ruiao Zhao , Jiayun Chen , Guohua Wu , Yuan Tang

3-D image registration, which involves aligning two or more images, is a critical step in a variety of medical applications from diagnosis to therapy. Image registration is commonly performed by optimizing an image matching metric as a cost…

Computer Vision and Pattern Recognition · Computer Science 2016-12-01 Rui Liao , Shun Miao , Pierre de Tournemire , Sasa Grbic , Ali Kamen , Tommaso Mansi , Dorin Comaniciu

The substantial modality-induced variations in radiometric, texture, and structural characteristics pose significant challenges for the accurate registration of multimodal images. While supervised deep learning methods have demonstrated…

Image and Video Processing · Electrical Eng. & Systems 2025-05-29 Xiaochen Wei , Weiwei Guo , Wenxian Yu

In medicine, image registration is vital in image-guided interventions and other clinical applications. However, it is a difficult subject to be addressed which by the advent of machine learning, there have been considerable progress in…

Image and Video Processing · Electrical Eng. & Systems 2022-08-04 Samaneh Abbasi , Meysam Tavakoli , Hamid Reza Boveiri , Mohammad Amin Mosleh Shirazi , Raouf Khayami , Hedieh Khorasani , Reza Javidan , Alireza Mehdizadeh

It is highly challenging to register large-scale, heterogeneous SAR and optical images, particularly across platforms, due to significant geometric, radiometric, and temporal differences, which most existing methods struggle to address. To…

Image and Video Processing · Electrical Eng. & Systems 2025-09-04 Xiaochen Wei , Weiwei Guo , Zenghui Zhang , Wenxian Yu

Augmented Reality and mobile robots are gaining much attention within industries due to the high potential to make processes cost and time efficient. To facilitate augmented reality, a calibration between the Augmented Reality device and…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Linh Kästner , Vlad Catalin Frasineanu , Jens Lambrecht

Accurate needle placement in spine interventions is critical for effective pain management, yet it depends on reliable identification of anatomical landmarks and careful trajectory planning. Conventional imaging guidance often relies both…

Human-Computer Interaction · Computer Science 2026-03-24 Tianyu Song , Felix Pabst , Feng Li , Yordanka Velikova , Miruna-Alexandra Gafencu , Yuan Bi , Ulrich Eck , Nassir Navab

Object tracking is a key aspect in many applications such as augmented reality in medicine (e.g. tracking a surgical instrument) or robotics. Squared planar markers have become popular tools for tracking since their pose can be estimated…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Hamid Sarmadi , Rafael Muñoz-Salinas , M. A. Berbís , R. Medina-Carnicer

Motion mode (M-mode) recording is an essential part of echocardiography to measure cardiac dimension and function. However, the current diagnosis cannot build an automatic scheme, as there are three fundamental obstructs: Firstly, there is…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Ching-Hsun Tseng , Shao-Ju Chien , Po-Shen Wang , Shin-Jye Lee , Wei-Huan Hu , Bin Pu , Xiao-jun Zeng

Surgical instrument pose estimation provides crucial information for promising applications, including autonomous robotic surgery, skill assessment, and standardization of surgical workflow. However, this task remains highly challenging due…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Daiyun Shen , Shuojue Yang , Chang Han Low , Qian Li , Mengya Xu , Qi Dou , Yueming Jin

Safe and efficient path planning is crucial for autonomous mobile robots. A prerequisite for path planning is to have a comprehensive understanding of the 3D structure of the robot's environment. On MAVs this is commonly achieved using…

Robotics · Computer Science 2019-11-15 Marius Fehr , Tim Taubner , Yang Liu , Roland Siegwart , Cesar Cadena

Learning-based medical image registration has matched the accuracy of conventional methods while offering superior computational efficiency. However, existing approaches suffer from poor generalization across diverse clinical scenarios,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Zi Li , Jianpeng Zhang , Tai Ma , Tony C. W. Mok , Yan-Jie Zhou , Zeli Chen , Xianghua Ye , Le Lu , Cheng Chen , Dakai Jin

Recently, X-ray microscopy (XRM) and light-sheet fluorescence microscopy (LSFM) have emerged as pivotal tools in preclinical research, particularly for studying bone remodeling diseases such as osteoporosis. These modalities offer…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Siyuan Mei , Fuxin Fan , Mareike Thies , Mingxuan Gu , Fabian Wagner , Oliver Aust , Ina Erceg , Zeynab Mirzaei , Georgiana Neag , Yipeng Sun , Yixing Huang , Andreas Maier

Electromagnetic tracking (EMT) is a core platform technology in the navigation and visualisation of image-guided procedures. The technology provides high tracking accuracy in non-line-of-sight environments, allowing instrument navigation in…

Signal Processing · Electrical Eng. & Systems 2018-07-31 Herman Alexander Jaeger , Stephen Hinds , Pádraig Cantillon-Murphy

We introduce RetinaRegNet, a zero-shot image registration model designed to register retinal images with minimal overlap, large deformations, and varying image quality. RetinaRegNet addresses these challenges and achieves robust and…

We introduce a speech-guided embodied agent framework for video-guided skull base surgery that dynamically executes perception and image-guidance tasks in response to surgeon queries. The proposed system integrates natural language…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Jecia Z. Y. Mao , Francis X. Creighton , Russell H. Taylor , Manish Sahu

In modern cancer research, the vast volume of medical data generated is often underutilised due to challenges related to patient privacy. The OncoReg Challenge addresses this issue by enabling researchers to develop and validate image…

Multimodal image registration is a challenging but essential step for numerous image-guided procedures. Most registration algorithms rely on the computation of complex, frequently non-differentiable similarity metrics to deal with the…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Matteo Ronchetti , Wolfgang Wein , Nassir Navab , Oliver Zettinig , Raphael Prevost

Robust segmentation is critical for deriving quantitative measures from large-scale, multi-center, and longitudinal medical scans. Manually annotating medical scans, however, is expensive and labor-intensive and may not always be available…

The ability to build maps is a key functionality for the majority of mobile robots. A central ingredient to most mapping systems is the registration or alignment of the recorded sensor data. In this paper, we present a general methodology…

Computer Vision and Pattern Recognition · Computer Science 2017-09-19 Bartolomeo Della Corte , Igor Bogoslavskyi , Cyrill Stachniss , Giorgio Grisetti