Results 21 to 30 of about 81,757 (265)

Magnetic particle tracking: A semi-algebraic solution

open access: yesChemical Engineering Science, 2023
Magnetic Particle Tracking (MPT) is a relatively new non-invasive measurement technique which is often used to study dense granular flow. Its basic principle relies on tracking the movement of a single magnetic tracer by means of measuring the magnetic field strength at a suitable distance from the tracer. By assumption of a magnetic dipole and the use
Buist, K. A. (author)   +1 more
openaire   +4 more sources

Combining Particle Filter and Population-based Metaheuristics for Visual Articulated Motion Tracking

open access: yesELCVIA Electronic Letters on Computer Vision and Image Analysis, 2005
Visual tracking of articulated motion is a complex task with high computational costs. Because of the fact that articulated objects are usually represented as a set of linked limbs, tracking is performed with the support of a model.
Juan Jose Pantrigo   +3 more
doaj   +1 more source

Improved Interacting Multiple Model Particle Filter Algorithm [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
For the issue of limited filtering accuracy of interactive multiple model particle filter algorithm caused by the resampling particles don't contain the latest observation information, we made improvements on interactive multiple model particle filter ...

doaj   +1 more source

Improvement in the Number of Velocity Vector Acquisitions Using an In-Picture Tracking Method for 3D3C Rainbow Particle Tracking Velocimetry

open access: yesFluids
Particle image velocimetry and particle tracking velocimetry (PTV) have developed from two-dimensional two-component (2D2C) velocity vector measurements to 3D3C measurements.
Mao Takeyama   +2 more
doaj   +1 more source

Confidence-Level-Based New Adaptive Particle Filter for Nonlinear Object Tracking

open access: yesInternational Journal of Advanced Robotic Systems, 2012
Nonlinear object tracking from noisy measurements is a basic skill and a challenging task of mobile robotics, especially under dynamic environments. The particle filter is a useful tool for nonlinear object tracking with non-Gaussian noise.
Xiaoyong Zhang   +3 more
doaj   +1 more source

An improved quantum particle swarm photovoltaic multi‐peak mPPT method combined with Lévy flight

open access: yesEnergy Science & Engineering, 2020
Inertial weight adaptive quantum particle swarm optimization (DCWQPSO) algorithm can effectively improve the problem of particle falling into local extreme value.
Lei Chen   +3 more
doaj   +1 more source

Four-dimensional multi-particle tracking in living cells based on lifetime imaging

open access: yesNanophotonics, 2022
Research on dynamic events in living cells, such as intracellular transportation, is important for understanding cell functions. As movements occur within cells, the microenvironment of the moving vesicles or biomacromolecules may affect the behavior of ...
Chen Danni, Li Heng, Yu Bin, Qu Junle
doaj   +1 more source

Optimal tracking of a Brownian particle

open access: yesOptics Express, 2012
Optical tracking of a fluorescent particle in solution faces fundamental constraints due to Brownian motion, diffraction, and photon shot noise. Background photons and imperfect tracking apparatus further degrade tracking precision. Here we use a model of particle motion to combine information from multiple time-points to improve the localization ...
Alexander P, Fields, Adam E, Cohen
openaire   +2 more sources

Trajectory data of antero- and retrograde movement of mitochondria in living zebrafish larvae

open access: yesData in Brief, 2020
Recently, a large number of single particle tracking (SPT) approaches have been developed. Generally, SPT techniques can be split into two groups: ex post facto approaches where trajectory extraction is carried out after data acquisition and feedback ...
Frank Mieskes   +5 more
doaj   +1 more source

Refining particle positions using circular symmetry. [PDF]

open access: yesPLoS ONE, 2017
Particle and object tracking is gaining attention in industrial applications and is commonly applied in: colloidal, biophysical, ecological, and micro-fluidic research.
Alvaro Rodriguez   +6 more
doaj   +1 more source

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