منابع مشابه
Multiplanar visualization of blood flow using echocardiographic particle imaging velocimetry.
E C H O C A R D I O G R A P H I C P A R T I C L E I M A G I N G V E L O C I M E T R Y ( E C H O P I V ) is noninvasive technique where acoustic reflections from ultrasound contrast agents are tracked frame by rame for characterizing 2-dimensional cardiac and vascular flow fields. Three-dimensional asymmetries in ow sequence can be interpreted by using multiplanar reconstructions of echo-PIV ima...
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3D visualization of fluid flow is of critical significance to a number of applications ranging from micro-scale medical devices to design of ships and airplanes. Of the various techniques currently used to visualize flow fields, particle image velocimetry (PIV) offers great advantages because of the high resolution quantitative results it provides. The feasibility of using synthetic aperture (S...
متن کاملHolographic particle-streak velocimetry.
We present a way to measure the positions and instantaneous velocities of micrometer-scale colloidal spheres using a single holographic snapshot obtained through in-line holographic video microscopy. This method builds on previous quantitative analyses of colloidal holograms by accounting for blurring that occurs as a sphere moves during the camera's exposure time. The angular variance of a blu...
متن کاملHolography and particle image velocimetry
The contribution of holographic techniques to particle velocity measurements is discussed. Two-dimensional holographic particle image velocimetry and three-dimensional holographic velocimetry are described and compared. Their advantages and limits are discussed and the latest progress in this domain is presented, together with perspectives for the near future.
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Novel 3D image analysis and particle matching techniques for the use in the volumetric particle tracking velocimetry have been developed and tested by using synthetic images and experimental images of unsteady 3D flows. A tomography based particle reconstruction scheme along with the subsequent process of individual particle detection and validation was used. The detected particles in the two t...
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ژورنال
عنوان ژورنال: Sensors
سال: 2019
ISSN: 1424-8220
DOI: 10.3390/s19214734