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High-fidelity biomechanical models usually involve the mechanical characterization of biological tissues using experimental methods based on optical measurements. In most experiments, strains are evaluated based on displacements of a few…

Image and Video Processing · Electrical Eng. & Systems 2023-01-10 Ondřej Lisický , Stéphane Avril , Bastien Eydan , Baptiste Pierrat , Jiří Burša

Abstract Background During percutaneous puncture robotic surgical navigation, the needle insertion point is positioned on the patient's chest and abdomen body surface. By locating any point on the soft skin tissue, it is difficult to apply…

Robotics · Computer Science 2024-06-11 Zezhao Guo , Yanzhong Guo , Zhanfang Zhao

Intra-cardiac Echocardiography (ICE) plays a crucial role in Electrophysiology (EP) and Structural Heart Disease (SHD) interventions by providing high-resolution, real-time imaging of cardiac structures. However, existing navigation methods…

Image and Video Processing · Electrical Eng. & Systems 2025-05-14 Jaeyoung Huh , Ankur Kapoor , Young-Ho Kim

Unlike in natural images, in endoscopy there is no clear notion of an up-right camera orientation. Endoscopic videos therefore often contain large rotational motions, which require keypoint detection and description algorithms to be robust…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Mert Asim Karaoglu , Viktoria Markova , Nassir Navab , Benjamin Busam , Alexander Ladikos

Image-guided surgery collocates patient-specific data with the physical environment to facilitate surgical decision making in real-time. Unfortunately, these guidance systems commonly become compromised by intraoperative soft-tissue…

Image and Video Processing · Electrical Eng. & Systems 2023-06-12 Morgan Ringel , Jon Heiselman , Winona Richey , Ingrid Meszoely , William Jarnagin , Michael Miga

Endoscopy is a crucial tool for diagnosing the gastrointestinal tract, but its effectiveness is often limited by a narrow field of view and the dynamic nature of the internal environment, especially in the esophagus, where complex and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Muyang Li , Juming Xiong , Ruining Deng , Tianyuan Yao , Regina N Tyree , Girish Hiremath , Yuankai Huo

The regulation of intestinal blood flow is critical to gastrointestinal function. Imaging the intestinal mucosal micro-circulation in vivo has the potential to provide new insight into the gut physiology and pathophysiology. We aimed to…

Deformable medical image registration is a fundamental task in medical image analysis with applications in disease diagnosis, treatment planning, and image-guided interventions. Despite significant advances in deep learning based…

Machine Learning · Computer Science 2026-02-10 Muhammad Zafar Iqbal , Ghazanfar Farooq Siddiqui , Anwar Ul Haq , Imran Razzak

Capsule endoscopy is a novel and non-invasive method for diagnosis, which assists gastroenterologists to monitor the digestive track. Although this new technology has many advantages over the conventional endoscopy, there are weaknesses…

Image and Video Processing · Electrical Eng. & Systems 2018-01-01 Mohammad Amin Khorsandi , Nader Karimi , Shadrokh Samavi

Purpose: Accurate intraoperative X-ray/CT registration is essential for surgical navigation in orthopedic procedures. However, existing methods struggle with consistently achieving sub-millimeter accuracy, robustness under broad initial…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Roman Flepp , Leon Nissen , Bastian Sigrist , Arend Nieuwland , Nicola Cavalcanti , Philipp Fürnstahl , Thomas Dreher , Lilian Calvet

Determining the 3D pose of a patient from a limited set of 2D X-ray images is a critical task in interventional settings. While preoperative volumetric imaging (e.g., CT and MRI) provides precise 3D localization and visualization of…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Vivek Gopalakrishnan , Neel Dey , Polina Golland

Deformable image registration (DIR) is essential for many image-guided therapies. Recently, deep learning approaches have gained substantial popularity and success in DIR. Most deep learning approaches use the so-called mono-stream…

Image and Video Processing · Electrical Eng. & Systems 2020-12-08 Zhe Xu , Jie Luo , Jiangpeng Yan , Xiu Li , Jagadeesan Jayender

State-of-the-art machine learning models, and especially deep learning ones, are significantly data-hungry; they require vast amounts of manually labeled samples to function correctly. However, in most medical imaging fields, obtaining said…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Guillem Pascual , Pablo Laiz , Albert García , Hagen Wenzek , Jordi Vitrià , Santi Seguí

With the unprecedented demand for location-based services in indoor scenarios, wireless indoor localization has become essential for mobile users. While GPS is not available at indoor spaces, WiFi RSS fingerprinting has become popular with…

Signal Processing · Electrical Eng. & Systems 2020-09-15 Qianwen Ye , Xiaochen Fan , Gengfa Fang , Hongxia Bie , Chaocan Xiang , Xudong Song , Xiangjian He

Unsafe surgical care is a critical health concern, often linked to limitations in surgeon experience, skills, and situational awareness. Integrating patient-specific 3D models into the surgical field can enhance visualization, provide…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Alberto Neri , Veronica Penza , Nazim Haouchine , Leonardo S. Mattos

The extraordinary improvements of modern imaging devices offer access to data with unprecedented information content. However, widely used image processing methodologies fall far short of exploiting the full breadth of information offered…

Computer Vision and Pattern Recognition · Computer Science 2014-03-27 Benjamin Berkels , Peter Binev , Douglas A. Blom , Wolfgang Dahmen , Robert C. Sharpley , Thomas Vogt

A reliable, real-time simultaneous localization and mapping (SLAM) method is crucial for the navigation of actively controlled capsule endoscopy robots. These robots are an emerging, minimally invasive diagnostic and therapeutic technology…

Computer Vision and Pattern Recognition · Computer Science 2017-11-07 Mehmet Turan , Yasin Almalioglu , Hunter Gilbert , Helder Araujo , Ender Konukoglu , Metin Sitti

Real-time ego-motion tracking for endoscope is a significant task for efficient navigation and robotic automation of endoscopy. In this paper, a novel framework is proposed to perform real-time ego-motion tracking for endoscope. Firstly, a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Liangjing Shao , Benshuang Chen , Shuting Zhao , Xinrong Chen

Medical image registration is a challenging task involving the estimation of spatial transformations to establish anatomical correspondence between pairs or groups of images. Recently, deep learning-based image registration methods have…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Xiang Chen , Yan Xia , Nishant Ravikumar , Alejandro F Frangi

Endoscopy serves as an essential procedure for evaluating the gastrointestinal (GI) tract and plays a pivotal role in identifying GI-related disorders. Recent advancements in deep learning have demonstrated substantial progress in detecting…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Astitva Kamble , Vani Bandodkar , Saakshi Dharmadhikary , Veena Anand , Pradyut Kumar Sanki , Mei X. Wu , Biswabandhu Jana