Adaptive particle image velocimetry based on sharpness metrics
Journal of the European Optical Society-Rapid Publications, 2018 Background Optical distortions can significantly deteriorate the measurement accuracy in particle image velocimetry systems. Such distortions can occur at fluctuating phase boundaries during flow measurement and result from the accompanied refractive ...
M. Teich +4 more
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Post-processing methods of PIV instantaneous flow fields for unsteady flows in turbomachines [PDF]
, 2012 The Particle Image Velocimetry is undoubtedly one of the most important technique in Fluid-dynamics since it allows to obtain a direct and instantaneous visualization of the flow field in a non-intrusive way.
PAVESI, Giorgio +9 more
core +1 more source
Investigation into the selection of viewing configurations for three-component planar Doppler velocimetry measurements. [PDF]
, 2007 A method for the calculation of three orthogonal velocity components in planar Doppler velocimetry (PDV) using four or more measured velocity components (to the three typically used) is presented.
Nobes, David S. +2 more
core +7 more sources
Remote Sensing, 2020 River flow monitoring is essential for many hydraulic and hydrologic applications related to water resource management and flood forecasting. Currently, unmanned aerial systems (UASs) combined with image velocimetry techniques provide a significant low ...
Silvano Fortunato Dal Sasso +2 more
doaj +1 more source
Assessing different imaging velocimetry techniques to measure shallow runoff velocities during rain events using an urban drainage physical model [PDF]
Hydrology and Earth System Sciences, 2021 Although surface velocities are key in the calibration of physically based urban drainage models, the shallow water depths developed during non-extreme precipitation and the potential risks during flood events limit the availability of this type of data ...
J. Naves +3 more
doaj +1 more source
Ultrasound Imaging Velocimetry: a review [PDF]
Experiments in Fluids, 2016 Whole-field velocity measurement techniques based on ultrasound imaging (a.k.a. ‘ultrasound imaging velocimetry’ or ‘echo-PIV’) have received significant attention from the fluid mechanics community in the last decade, in particular because of their ability to obtain velocity fields in flows that elude characterisation by conventional optical methods ...
openaire +3 more sources
Glacier Image Velocimetry (GIV)
, 2020 Glacier Image Velocimetry (GIV) toolbox release to accompany the submission of Van Wyk de Vries and Wickert (2020), Glacier Image Velocimetry: an open-source toolbox for easy andrapid calculation of high-resolution glacier-velocity fields to The ...
Maximillian Van Wyk de Vries
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Image registration algorithm for molecular tagging velocimetry applied to unsteady flow in Hele-Shaw cell [PDF]
, 2013 In order to develop velocimetry methods for confined geometries, we propose to combine image registration and volumetric reconstruction from a monocular video of the draining of a Hele-Shaw cell filled with water.
Brunet, Florent +5 more
core +1 more source
Image-Based Experimental Measurement Techniques to Characterize Velocity Fields in Blood Microflows
Frontiers in Physiology, 2022 Predicting blood microflow in both simple and complex geometries is challenging because of the composition and behavior of the blood at microscale. However, characterization of the velocity in microchannels is the key for gaining insights into cellular ...
Andy Vinh Le +2 more
doaj +1 more source
Feature Tracking Velocimetry Applied to Airborne Measurement Data from Murg Creek
E3S Web of Conferences, 2018 A new image feature tracking velocimetry is presented and tested on airborne video data available from a previous study at Murg Creek (Canton Thurgau, Switzerland). Here, the seeded flow scenery had been recorded by an off-the-shelf action camera mounted
Cao Liekai +3 more
doaj +1 more source