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Fluoroscopy is critical for real-time X-ray visualization in medical imaging. However, low-dose images are compromised by noise, potentially affecting diagnostic accuracy. Noise reduction is crucial for maintaining image quality, especially…

Image and Video Processing · Electrical Eng. & Systems 2024-11-05 Sun-Young Jeon , Sen Wang , Adam S. Wang , Garry E. Gold , Jang-Hwan Choi

Colonoscopy is a standard imaging tool for visualizing the entire gastrointestinal (GI) tract of patients to capture lesion areas. However, it takes the clinicians excessive time to review a large number of images extracted from colonoscopy…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Kaiwei Che , Chengwei Ye , Yibing Yao , Nachuan Ma , Ruo Zhang , Jiankun Wang , Max Q. -H. Meng

X-ray coronary angiography (XCA) is a principal approach employed for identifying coronary disorders. Deep learning-based networks have recently shown tremendous promise in the diagnosis of coronary disorder from XCA scans. A deep…

Image and Video Processing · Electrical Eng. & Systems 2021-09-06 Supriti Mulay , Keerthi Ram , Balamurali Murugesan , Mohanasankar Sivaprakasam

We propose a novel deep-learning-based system for vessel segmentation. Existing methods using CNNs have mostly relied on local appearances learned on the regular image grid, without considering the graphical structure of vessel shape. To…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Seung Yeon Shin , Soochahn Lee , Il Dong Yun , Kyoung Mu Lee

Assessing the severity of stenoses in coronary angiography is critical to the patient's health, as coronary stenosis is an underlying factor in heart failure. Current practice for grading coronary lesions, i.e. fractional flow reserve (FFR)…

Image and Video Processing · Electrical Eng. & Systems 2024-09-24 Raffaele Mineo , Amelia Sorrenti , Federica Proietto Salanitri

Safe navigation of steerable and robotic catheters in the cerebral vasculature requires awareness of the catheters shape and pose. Currently, a significant perception burden is placed on interventionalists to mentally reconstruct and…

Robotics · Computer Science 2025-06-18 Jared Lawson , Rohan Chitale , Nabil Simaan

This paper presents U-LanD, a framework for joint detection of key frames and landmarks in videos. We tackle a specifically challenging problem, where training labels are noisy and highly sparse. U-LanD builds upon a pivotal observation: a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Mohammad H. Jafari , Christina Luong , Michael Tsang , Ang Nan Gu , Nathan Van Woudenberg , Robert Rohling , Teresa Tsang , Purang Abolmaesumi

To achieve high coverage of target boxes, a normal strategy of conventional one-stage anchor-based detectors is to utilize multiple priors at each spatial position, especially in scene text detection tasks. In this work, we present a simple…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Linjie Deng , Yanxiang Gong , Xinchen Lu , Yi Lin , Zheng Ma , Mei Xie

Accurate detection and segmentation of anatomical structures from ultrasound images are crucial for clinical diagnosis and biometric measurements. Although ultrasound imaging has been widely used with superiorities such as low cost and…

Computer Vision and Pattern Recognition · Computer Science 2016-07-08 Hao Chen , Yefeng Zheng , Jin-Hyeong Park , Pheng-Ann Heng , S. Kevin Zhou

Image registration is used in many medical image analysis applications, such as tracking the motion of tissue in cardiac images, where cardiac kinematics can be an indicator of tissue health. Registration is a challenging problem for deep…

Image and Video Processing · Electrical Eng. & Systems 2025-06-25 Benjamin Graham

This study introduces a novel data-centric approach to improve real-time surgical guidance using fiber-based fluorescence lifetime imaging (FLIm). A key aspect of the methodology is the accurate detection of the aiming beam, which is…

Artificial Intelligence · Computer Science 2024-11-13 Mohamed Abul Hassan , Pu Sun , Xiangnan Zhou , Lisanne Kraft , Kelsey T Hadfield , Katjana Ehrlich , Jinyi Qi , Andrew Birkeland , Laura Marcu

Segmenting of clinically important retinal blood vessels into arteries and veins is a prerequisite for retinal vessel analysis. Such analysis can provide potential insights and bio-markers for identifying and diagnosing various retinal eye…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Sharan SK , Subin Sahayam , Umarani Jayaraman , Lakshmi Priya A

The utilisation of deep learning segmentation algorithms that learn complex organs and tissue patterns and extract essential regions of interest from the noisy background to improve the visual ability for medical image diagnosis has…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Yanming Guo

Automated detection and segmentation of surgical devices, such as catheters or wires, in X-ray fluoroscopic images have the potential to enhance image guidance in minimally invasive heart surgeries. In this paper, we present a convolutional…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Lin Xi , Yingliang Ma , Ethan Koland , Sandra Howell , Aldo Rinaldi , Kawal S. Rhode

Fluoroscopic imaging that captures X-ray images at video framerates is advantageous for guiding catheter insertions by vascular surgeons and interventional radiologists. Visualizing the dynamical movements non-invasively allows complex…

Image and Video Processing · Electrical Eng. & Systems 2020-01-06 Jacky C. K. Chow , Steven K. Boyd , Derek D. Lichti , Janet L. Ronsky

Colo-segment recognition in colonoscopy videos is a key requirement for many downstream tasks, but existing automatic recognition methods only use colonoscopy images without fully exploiting the use of temporal information, leading to poor…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Ziyi Wang , Zhengjie Zhang , Jingsheng Gao , Dahong Qian , Suncheng Xiang

During endovascular interventions, physicians have to perform accurate and immediate operations based on the available real-time information, such as the shape and position of guidewires observed on the fluoroscopic images, haptic…

Image and Video Processing · Electrical Eng. & Systems 2024-04-16 Baochang Zhang , Mai Bui , Cheng Wang , Felix Bourier , Heribert Schunkert , Nassir Navab

The segmentation of coronary arteries in X-ray angiograms by convolutional neural networks (CNNs) is promising yet limited by the requirement of precisely annotating all pixels in a large number of training images, which is extremely…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Jingyang Zhang , Guotai Wang , Hongzhi Xie , Shuyang Zhang , Ning Huang , Shaoting Zhang , Lixu Gu

Deep learning has been widely adopted for channel state information (CSI)-fingerprinting indoor localization systems. These systems usually consist of two main parts, i.e., a positioning network that learns the mapping from high-dimensional…

Signal Processing · Electrical Eng. & Systems 2023-10-11 Bowen Zhang , Houssem Sifaou , Geoffrey Ye Li

The morbidity of brain stroke increased rapidly in the past few years. To help specialists in lesion measurements and treatment planning, automatic segmentation methods are critically required for clinical practices. Recently, approaches…

Image and Video Processing · Electrical Eng. & Systems 2020-01-01 Kehan Qi , Hao Yang , Cheng Li , Zaiyi Liu , Meiyun Wang , Qiegen Liu , Shanshan Wang