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Surgery monitoring in Mixed Reality (MR) environments has recently received substantial focus due to its importance in image-based decisions, skill assessment, and robot-assisted surgery. Tracking hands and articulated surgical instruments…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Ahmed Tawfik Aboukhadra , Nadia Robertini , Jameel Malik , Ahmed Elhayek , Gerd Reis , Didier Stricker

Articulated hand pose tracking is an under-explored problem that carries the potential for use in an extensive number of applications, especially in the medical domain. With a robust and accurate tracking system on surgical videos, the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-10 Nathan Louis , Luowei Zhou , Steven J. Yule , Roger D. Dias , Milisa Manojlovich , Francis D. Pagani , Donald S. Likosky , Jason J. Corso

Conventional computer-assisted orthopaedic navigation systems rely on the tracking of dedicated optical markers for patient poses, which makes the surgical workflow more invasive, tedious, and expensive. Visual tracking has recently been…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Xue Hu , Anh Nguyen , Ferdinando Rodriguez y Baena

To decide whether a digital video has been captured by a given device, multimedia forensic tools usually exploit characteristic noise traces left by the camera sensor on the acquired frames. This analysis requires that the noise pattern…

Multimedia · Computer Science 2020-05-21 Sara Mandelli , Fabrizio Argenti , Paolo Bestagini , Massimo Iuliani , Alessandro Piva , Stefano Tubaro

Successful video analysis relies on accurate recognition of pixels across frames, and frame reconstruction methods based on video correspondence learning are popular due to their efficiency. Existing frame reconstruction methods, while…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Zihan Zhou , Changrui Dai , Aibo Song , Xiaolin Fang

Interventional Radiology (IR) enables earlier diagnosis and less invasive treatment of numerous ailments. Here we present our ongoing development of CRANE: CT RoboticArm and Needle Emplacer, a robotic needle positioning system for CT guided…

In most medical image processing tasks, the orientation of an image would affect computing result. However, manually reorienting images wastes time and effort. In this paper, we study the problem of recognizing orientation in cardiac MRI…

Image and Video Processing · Electrical Eng. & Systems 2022-11-16 Houxin Zhou

Video understanding of robot-assisted surgery (RAS) videos is an active research area. Modeling the gestures and skill level of surgeons presents an interesting problem. The insights drawn may be applied in effective skill acquisition,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Duygu Sarikaya , Jason J. Corso , Khurshid A. Guru

How far a particle moves along the optical axis in a holographic optical trap is not simply dictated by the programmed motion of the trap, but rather depends on an interplay of the trap's changing shape and the particle's material…

Soft Condensed Matter · Physics 2019-10-02 Michael J. O'Brien , David G. Grier

Single particle tracking is essential in many branches of science and technology, from the measurement of biomolecular forces to the study of colloidal crystals. Standard current methods rely on algorithmic approaches: by fine-tuning…

Soft Condensed Matter · Physics 2018-12-07 Saga Helgadottir , Aykut Argun , Giovanni Volpe

Robotic platforms provide consistent and precise tool positioning that significantly enhances retinal microsurgery. Integrating such systems with intraoperative optical coherence tomography (iOCT) enables image-guided robotic interventions,…

Current commercial matrix transducers for 3D DCE-US do not display side-by-side B-mode and contrast-mode images when capturing volumetric data, thus leaving the operator with no position feedback during lengthy acquisitions. The purpose of…

Image and Video Processing · Electrical Eng. & Systems 2020-11-03 Ahmed El Kaffas , Renhui Gong , Samvardhini Sridharan , Rosa Maria Silveira Sigrist , Isabelle Durot , Jürgen K. Willmann , Dimitre Hristov

To achieve pixel-level image manipulation, drag-style image editing which edits images using points or trajectories as conditions is attracting widespread attention. Most previous methods follow move-and-track framework, in which miss…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Jiacheng Sui , Yujie Zhou , Li Niu

With a video data source, such as multispectral video acquired during administration of fluorescent tracers, extraction of time-resolved data typically requires the compensation of motion. While this can be done manually, which is arduous,…

Image and Video Processing · Electrical Eng. & Systems 2022-03-18 Jonathan P. Epperlein , Sergiy Zhuk

Pick-and-place regrasp is an important manipulation skill for a robot. It helps a robot accomplish tasks that cannot be achieved within a single grasp, due to constraints such as kinematics or collisions between the robot and the…

Robotics · Computer Science 2015-12-23 Chao Cao , Weiwei Wan , Jia Pan , Kensuke Harada

In interventional radiology, short video sequences of vein structure in motion are captured in order to help medical personnel identify vascular issues or plan intervention. Semantic segmentation can greatly improve the usefulness of these…

Computer Vision and Pattern Recognition · Computer Science 2018-08-06 Athanasios Vlontzos , Krystian Mikolajczyk

Positioning patients for scanning and interventional procedures is a critical task that requires high precision and accuracy. The conventional workflow involves manually adjusting the patient support to align the center of the target body…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Zhongpai Gao , Abhishek Sharma , Meng Zheng , Benjamin Planche , Terrence Chen , Ziyan Wu

Device tracking is an important prerequisite for guidance during endovascular procedures. Especially during cardiac interventions, detection and tracking of guiding the catheter tip in 2D fluoroscopic images is important for applications…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Marc Demoustier , Yue Zhang , Venkatesh Narasimha Murthy , Florin C. Ghesu , Dorin Comaniciu

Crack detection is of great significance for monitoring the integrity and well-being of the infrastructure such as bridges and underground pipelines, which are harsh environments for people to access. In recent years, computer vision…

Robotics · Computer Science 2021-05-14 Jiaqi Jiang , Guanqun Cao , Daniel Fernandes Gomes , Shan Luo

Accurate visualization of interventional devices, such as medical needles, is essential for the safe and effective guidance of minimally invasive procedures. Ultrasound (US) imaging is widely used for needle guidance, but the…