Results 11 to 20 of about 376,222 (244)

Intercomparisons of Tracker v1.1 and four other ocean particle-tracking software packages in the Regional Ocean Modeling System [PDF]

open access: yesGeoscientific Model Development
Particle tracking is widely utilized to study transport features in a range of physical, chemical, and biological processes in oceanography. In this study, a new offline particle-tracking package, Tracker v1.1, is introduced, and its performance is ...
J. Xiong, P. MacCready
doaj   +1 more source

Research on the Particle Filter Single-Station Target Tracking Algorithm Based on Particle Number Optimization

open access: yesJournal of Electrical and Computer Engineering, 2021
Given that the tracking accuracy and real-time performance of the particle filter (PF) target tracking algorithm are greatly affected by the number of sampled particles, a PF target tracking algorithm based on particle number optimization under the ...
Lieping Zhang   +5 more
doaj   +1 more source

Optical shield: measuring viscosity of turbid fluids using optical tweezers [PDF]

open access: yes, 2012
The viscosity of a fluid can be measured by tracking the motion of a suspended micron-sized particle trapped by optical tweezers. However, when the particle density is high, additional particles entering the trap compromise the tracking procedure and ...
A. Curran   +24 more
core   +1 more source

Contour tracking of contaminant clouds with sequential Monte Carlo methods [PDF]

open access: yes, 2008
Contour tracking for a single source emission is addressed in this paper. This problem is solved by estimating the contour boundary positions using a set of particle filters.
Bull, DR, Canagarajah, CN, Jaward, MH
core   +1 more source

3D moving target tracking with measurement fusion of TDoA/FDoA/AoA

open access: yesICT Express, 2019
In this paper, we investigate the tracking of the 3D moving target when multiple measurements are available. We propose a particle filter-based 3D target tracking algorithm with measurement of time difference of arrival (TDoA), frequency difference of ...
Hyeondeog Seo   +5 more
doaj   +1 more source

Improved proposal distribution with gradient measures for tracking [PDF]

open access: yes, 2005
Particle filters have become a useful tool for the task of object tracking due to their applicability to a wide range of situations. To be able to obtain an accurate estimate from a particle filter a large number of particles is usually necessary.
Brasnett, PA   +3 more
core   +3 more sources

Object Tracking with an Evolutionary Particle Filter Based on Self-Adaptive Multi-Features Fusion

open access: yesInternational Journal of Advanced Robotic Systems, 2013
Particle filter algorithms are widely used for object tracking in video sequences, but the standard particle filter algorithm cannot solve the validity of particles ideally.
Zhang Xiaowei, Liu Hong, Sun Xiaohong
doaj   +1 more source

Tracking of ball and players in beach volleyball videos. [PDF]

open access: yesPLoS ONE, 2014
This paper presents methods for the determination of players' positions and contact time points by tracking the players and the ball in beach volleyball videos.
Gabriel Gomez   +3 more
doaj   +1 more source

The influence of movement on the localization precision of sub-resolution particles in fluorescence microscopy [PDF]

open access: yes, 2011
Obtaining sub-resolution particle positions in fluorescence microscopy images is essential for single particle tracking and high-resolution localization microscopy.
Braeckmans, Kevin   +2 more
core   +1 more source

Video Object Tracking in Neural Axons with Fluorescence Microscopy Images

open access: yesJournal of Applied Mathematics, 2014
Neurofilament is an important type of intercellular cargos transmitted in neural axons. Given fluorescence microscopy images, existing methods extract neurofilament movement patterns by manual tracking.
Liang Yuan, Junda Zhu
doaj   +1 more source

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