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Bronchoscopic navigation relies on registering endoscopic video to a preoperative CT scan, but respiratory motion deforms the airway by 5-20 mm, creating CT-to-body divergence that limits localization accuracy. In practice, this is…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Andrea Dunn Beltran , Daniel Rho , Aarav Mehta , Xinqi Xiong , Raúl San José Estépar , Ron Alterovitz , Marc Niethammer , Roni Sengupta

Kinect skeleton tracker is able to achieve considerable human body tracking performance in convenient and a low-cost manner. However, The tracker often captures unnatural human poses such as discontinuous and vibrated motions when…

Computer Vision and Pattern Recognition · Computer Science 2016-04-18 Youngbin Park , Sungphill Moon , Il Hong Suh

In this preliminary study technical methodology for kinematic tracking and profiling of wrist carpal bones during unconstrained movements is explored. Heavily under-sampled and fat-saturated 3D Cartesian MRI acquisition were used to capture…

In the gastrointestinal (GI) tract endoscopy field, ingestible wireless capsule endoscopy is considered as a minimally invasive novel diagnostic technology to inspect the entire GI tract and to diagnose various diseases and pathologies.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-27 Mehmet Turan , Yasin Almalioglu , Helder Araujo , Ender Konukoglu , Metin Sitti

Purpose: To apply tracer kinetic models as temporal constraints during reconstruction of under-sampled dynamic contrast enhanced (DCE) MRI. Methods: A library of concentration v.s time profiles is simulated for a range of physiological…

Accurate kinodynamic models play a crucial role in many robotics applications such as off-road navigation and high-speed driving. Many state-of-the-art approaches in learning stochastic kinodynamic models, however, require precise…

Robotics · Computer Science 2022-09-26 Jiayi Wei , Jarrett Holtz , Isil Dillig , Joydeep Biswas

Stereo Imaging technology integration into medical diagnostics and surgeries brings a great revolution in the field of medical sciences. Now, surgeons and physicians have better insight into the anatomy of patients' organs. Like other…

Image and Video Processing · Electrical Eng. & Systems 2024-09-01 Mansoor Hayat , Supavadee Armvith , Titipat Achakulvisut

This paper presents an algorithm that makes novel use of distance measurements alongside a constrained Kalman filter to accurately estimate pelvis, thigh, and shank kinematics for both legs during walking and other body movements using only…

Systems and Control · Electrical Eng. & Systems 2020-03-24 Luke Sy , Nigel H. Lovell , Stephen J. Redmond

This paper proposes a sign gradient descent (SGD) algorithm for predicting the three-dimensional folded protein molecule structures under the kinetostatic compliance method (KCM). In the KCM framework, which can be used to simulate the…

Systems and Control · Electrical Eng. & Systems 2023-08-16 Alireza Mohammadi , Mohammad Al Janaideh

Environment awareness is crucial for enhancing walking safety and stability of amputee wearing powered prosthesis when crossing uneven terrains such as stairs and obstacles. However, existing environmental perception systems for prosthesis…

Robotics · Computer Science 2024-04-30 Chuheng Chen , Xinxing Chen , Shucong Yin , Yuxuan Wang , Binxin Huang , Yuquan Leng , Chenglong Fu

Magnetically controlled capsule endoscope (MCCE) is an emerging tool for the diagnosis of gastric diseases with the advantages of comfort, safety, and no anesthesia. In this paper, we develop algorithms to detect and measure human gastric…

Image and Video Processing · Electrical Eng. & Systems 2023-01-25 Xueshen Li , Yu Gan , David Duan , Xiao Yang

Precise localization of polyp is crucial for early cancer screening in gastrointestinal endoscopy. Videos given by endoscopy bring both richer contextual information as well as more challenges than still images. The camera-moving situation,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Lingyun Wu , Zhiqiang Hu , Yuanfeng Ji , Ping Luo , Shaoting Zhang

Hip joint moments during walking are the key foundation for hip exoskeleton assistance control. Most recent studies have shown estimating hip joint moments instantaneously offers a lot of advantages compared to generating assistive torque…

Robotics · Computer Science 2025-04-01 Yuanwen Zhang , Jingfeng Xiong , Haolan Xian , Chuheng Chen , Xinxing Chen , Chenglong Fu , Yuquan Leng

In this paper, a novel image moments based model for shape estimation and tracking of an object moving with a complex trajectory is presented. The camera is assumed to be stationary looking at a moving object. Point features inside the…

Image and Video Processing · Electrical Eng. & Systems 2018-04-13 Gang Yao , Ashwin Dani

We present a method for analysing the phase space of star-forming regions. In particular we are searching for clumpy structures in the 3D subspace formed by two position coordinates and radial velocity. The aim of the method is the…

Instrumentation and Methods for Astrophysics · Physics 2015-12-04 Emilio J. Alfaro , Marta González

Examining and interpreting of a large number of wireless endoscopic images from the gastrointestinal tract is a tiresome task for physicians. A practical solution is to automatically construct a two dimensional representation of the…

Signal Processing · Electrical Eng. & Systems 2018-03-16 Rahman Attar , Xiang Xie , Zhihua Wang , Shigang Yue

We propose a magnetic resonance (MR)-based method for estimation of continuous linear attenuation coefficients (LAC) in positron emission tomography (PET) using a physical compartmental model and ultrashort echo time (UTE)/multi-echo Dixon…

Screening colonoscopy is an important clinical application for several 3D computer vision techniques, including depth estimation, surface reconstruction, and missing region detection. However, the development, evaluation, and comparison of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Taylor L. Bobrow , Mayank Golhar , Rohan Vijayan , Venkata S. Akshintala , Juan R. Garcia , Nicholas J. Durr

Purpose: This study proposes a novel anatomically-driven dynamic modeling framework for coronary arteries using skeletal skinning weights computation, aiming to achieve precise control over vessel deformation while maintaining real-time…

Graphics · Computer Science 2025-03-05 Shuo Wang , Tong Ren , Nan Cheng , Rong Wang , Li Zhang

The ever-increasing sensor service, though opening a precious path and providing a deluge of earth system data for deep-learning-oriented earth science, sadly introduce a daunting obstacle to their industrial level deployment. Concretely,…

Artificial Intelligence · Computer Science 2025-01-17 Hao Wu , Haomin Wen , Guibin Zhang , Yutong Xia , Yuxuan Liang , Yu Zheng , Qingsong Wen , Kun Wang