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We proposed a novel test-time optimisation (TTO) approach framed by a NeRF-based architecture for long-term 3D point tracking. Most current methods in point tracking struggle to obtain consistent motion or are limited to 2D motion. TTO…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Gerardo Loza , Junlei Hu , Dominic Jones , Sharib Ali , Pietro Valdastri

Physicians perform minimally invasive percutaneous procedures under Computed Tomography (CT) image guidance both for the diagnosis and treatment of numerous diseases. For these procedures performed within Computed Tomography Scanners,…

Background 15 The success of cementless hip arthroplasty depends on the primary stability of the femoral stem. It remains difficult to assess the optimal number of impacts to guarantee the femoral stem stability while avoiding bone…

In this work, we present a marker-based multi-view spine tracking method that is specifically adjusted to the requirements for movements in sports. A maximal focus is on the accurate detection of markers and fast usage of the system. For…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Hendrik Hachmann , Bodo Rosenhahn

Robot-assisted deployment of fenestrated stent grafts in Fenestrated Endovascular Aortic Repair (FEVAR) requires accurate geometrical alignment. Currently, this process is guided by 2D fluoroscopy, which is uninformative and error prone. In…

Robotics · Computer Science 2018-09-12 Xiao-Yun Zhou , Jianyu Lin , Celia Riga , Guang-Zhong Yang , Su-Lin Lee

Brachytherapy involves bringing a radioactive source near tumor tissue using implanted needles. Image-guided brachytherapy planning requires amongst others, the reconstruction of the needles. Manually annotating these needles on patient…

Image and Video Processing · Electrical Eng. & Systems 2025-07-28 Vangelis Kostoulas , Arthur Guijt , Ellen M. Kerkhof , Bradley R. Pieters , Peter A. N. Bosman , Tanja Alderliesten

Deep learning and reinforcement learning methods have been shown to enable learning of flexible and complex robot controllers. However, the reliance on large amounts of training data often requires data collection to be carried out in…

Robotics · Computer Science 2020-04-02 Zihan Ding , Nathan F. Lepora , Edward Johns

Assessing the condition and visibility of veins is a crucial step before obtaining intravenous access in the antecubital fossa, which is a common procedure to draw blood or administer intravenous therapies (IV therapies). Even though…

Image and Video Processing · Electrical Eng. & Systems 2023-10-30 Edwin Salcedo , Patricia Peñaloza

Purpose. We present a new method to evaluate the accuracy of an eye tracker based eye localization system. Measuring the accuracy of an eye tracker's primary intention, the estimated point of gaze, is usually done with volunteers and a set…

Human-Computer Interaction · Computer Science 2017-05-23 Stephan Wyder , Philippe C. Cattin

Several robotic frameworks have been recently developed to assist ophthalmic surgeons in performing complex vitreoretinal procedures such as subretinal injection of advanced therapeutics. These surgical robots show promising capabilities;…

Robotics · Computer Science 2025-02-26 Satoshi Inagaki , Alireza Alikhani , Nassir Navab , Peter C. Issa , M. Ali Nasseri

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

Many robotic tasks are still teleoperated since automating them is very time consuming and expensive. Robot Learning from Demonstrations (RLfD) can reduce programming time and cost. However, conventional RLfD approaches are not directly…

Robotics · Computer Science 2020-12-07 Hamidreza Hashempour , Kiyanoush Nazari , Fangxun Zhong , Amir Ghalamzan E.

Accurate neuronavigation is critical for effective transcranial magnetic stimulation (TMS), as stimulation outcomes depend directly on precise coil placement. Existing neuronavigation systems are often costly, complex, and prone to tracking…

Human-Computer Interaction · Computer Science 2026-01-26 Xuyi Hu , Ke Ma , Siwei Liu , Per Ola Kristensson , Stefan Goetz

We consider a micromanipulation problem in eye surgery, specifically retinal vein cannulation (RVC). RVC involves inserting a microneedle into a retinal vein for the purpose of targeted drug delivery. The procedure requires accurately…

Robotics · Computer Science 2023-07-03 Ji Woong Kim , Peiyao Zhang , Peter Gehlbach , Iulian Iordachita , Marin Kobilarov

In recent years, the steerable needles have attracted significant interest in Minimally Invasive Surgery (MIS). Amongst these, the flexible Programmable-bevel tip needle (PBN) concept has successfully achieved an in-vivo demonstration to…

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

Purpose: Implanted fiducial markers are often used in radiotherapy to facilitate accurate visualization and localization of tumors. Typically, such markers are used to aid daily patient positioning and to verify the target's position during…

Medical Physics · Physics 2017-03-14 Warren G. Campbell , Moyed Miften , Bernard L. Jones

Periacetabular osteotomy is a challenging surgical procedure for treating developmental hip dysplasia, providing greater coverage of the femoral head via relocation of a patient's acetabulum. Since fluoroscopic imaging is frequently used in…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Robert Grupp , Mehran Armand , Russell Taylor

In view of the recent paradigm shift in deep AI based image processing methods, medical image processing has advanced considerably. In this study, we propose a novel deep neural network (DNN), entitled InceptNet, in the scope of medical…

Image and Video Processing · Electrical Eng. & Systems 2023-09-06 Amirhossein Sajedi , Mohammad Javad Fadaeieslam

Neuronavigation is widely used in biomedical research and interventions to guide the precise placement of instruments around the head to support procedures such as transcranial magnetic stimulation. Traditional systems, however, rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Ziye Xie , Oded Schlesinger , Raj Kundu , Jessica Y. Choi , Pablo Iturralde , Dennis A. Turner , Stefan M. Goetz , Guillermo Sapiro , Angel V. Peterchev , J. Matias Di Martino
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