Results 21 to 30 of about 870,154 (291)

Comparison of left ventricular strains and torsion derived from feature tracking and DENSE CMR

open access: yesJournal of Cardiovascular Magnetic Resonance, 2018
Background Cardiovascular magnetic resonance (CMR) feature tracking is increasingly used to quantify cardiac mechanics from cine CMR imaging, although validation against reference standard techniques has been limited.
Gregory J. Wehner   +9 more
doaj   +1 more source

Better features to track by estimating the tracking convergence region [PDF]

open access: yes, 2002
Reliably tracking key points and textured patches from frame to frame is the basic requirement for many bottomup computer vision algorithms. The problem of selecting the features that can be tracked well is addressed here.
Heijden, Ferdinand van der   +1 more
core   +4 more sources

Robust Visual Tracking Based on Adaptive Multi-Feature Fusion Using the Tracking Reliability Criterion

open access: yesSensors, 2020
Multi-resolution feature fusion DCF (Discriminative Correlation Filter) methods have significantly advanced the object tracking performance. However, careless choice and fusion of sample features make the algorithm susceptible to interference, leading to
Lin Zhou   +6 more
doaj   +1 more source

Left Ventricular Longitudinal Dyssynchrony by CMR Feature Tracking Is Related to Adverse Prognosis in Advanced Arrhythmogenic Cardiomyopathy

open access: yesFrontiers in Cardiovascular Medicine, 2021
Objectives: Left ventricular (LV) involvement has been associated with unfavorable prognosis in arrhythmogenic cardiomyopathy (ACM). We aim to evaluate LV mechanics by cardiovascular magnetic resonance-feature tracking (CMR-FT) in ACM patients with right
Yanyan Song   +7 more
doaj   +1 more source

Multi-Feature Beat Tracking

open access: yesIEEE/ACM Transactions on Audio, Speech, and Language Processing, 2014
This work was supported in part by the R+I+D Ph.D. scholarship of Universidad Pontificia Bolivariana and Colciencias (Colombia), the projects of the Spanish Ministry of Science and Innovation DRIMS (MICINN-TIN2009-14247-C02-01), SIGMUS (MINECO-TIN2012-36650) and Mires (EC-7PM-MIReS), and in part by the Media Arts and Technologies project (MAT), NORTE ...
Zapata González, José Ricardo   +2 more
openaire   +1 more source

An End-to-End Approach to Reconstructing 3D Model From Image Set

open access: yesIEEE Access, 2020
Large-scale 3D reconstruction from imagery has received much attention from the computer vision community. However, recovering 3D structures from 2D images is a notoriously complex process that requires expertise with often limited results.
Youcheng Cai   +3 more
doaj   +1 more source

Visual-Inertial Navigation System based on a New approach in Tracking and Investigating the Image Feature Points [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2019
In the last decades, the visual navigation system has been investigated by many researchers as an aided navigation system for Inertial Navigation System (INS) in the Unmanned Aerial Vehicles (UAV).
Mohammadvali Arbabmir   +1 more
doaj   +1 more source

Deciphering Small-Scale Seasonal Surface Dynamics of Rock Glaciers in the Central European Alps Using DInSAR Time Series

open access: yesRemote Sensing, 2023
The Essential Climate Variable (ECV) Permafrost is currently undergoing strong changes due to rising ground and air temperatures. Surface movement, forming characteristic landforms such as rock glaciers, is one key indicator for mountain permafrost ...
Sebastian Buchelt   +6 more
doaj   +1 more source

A novel method for estimating myocardial strain: assessment of deformation tracking against reference magnetic resonance methods in healthy volunteers [PDF]

open access: yes, 2016
We developed a novel method for tracking myocardial deformation using cardiac magnetic resonance (CMR) cine imaging. We hypothesised that circumferential strain using deformation-tracking has comparable diagnostic performance to a validated method ...
Berry, Colin   +8 more
core   +1 more source

Quantitative Evaluation of Hypomimia in Parkinson’s Disease: A Face Tracking Approach

open access: yesSensors, 2022
Parkinson’s disease (PD) is a neurological disorder that mainly affects the motor system. Among other symptoms, hypomimia is considered one of the clinical hallmarks of the disease.
Elena Pegolo   +4 more
doaj   +1 more source

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