Results 181 to 190 of about 68,724 (212)
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Development of a tomographic PTV
Journal of Mechanical Science and Technology, 2012A new tomographic PTV (Tomo-PTV) was proposed, and then its performance was compared with that of tomographic PIV (Tomo-PIV). To construct the new tomographic PTV for calculation of vector fields, an affine transformation was introduced. The vectors obtained by match probability method were used as the initial data for the final vectors.
Deog Hee Doh +2 more
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Measurement Science and Technology, 2020
Digital imaging array technology and processing power are continuously improving and have reached a state where 4-dimensional (i.e. time-resolved 3C- 3D) digital holographic PIV/PTV (4D-DHPIV/PTV) methods can be considered for macro fluid mechanics and turbulence investigations. This paper presents an in-line 4D-DHPIV/PTV methodology, which in addition
Bihai Sun +3 more
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Digital imaging array technology and processing power are continuously improving and have reached a state where 4-dimensional (i.e. time-resolved 3C- 3D) digital holographic PIV/PTV (4D-DHPIV/PTV) methods can be considered for macro fluid mechanics and turbulence investigations. This paper presents an in-line 4D-DHPIV/PTV methodology, which in addition
Bihai Sun +3 more
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Single-Camera Micro-Stereo 4D-PTV
Transactions of the Korean Society of Mechanical Engineers B, 2010A micro 3D-PTV system has been constructed using a single camera system. Two viewing holes were created behind the object lens of the microscopic system to construct a stereoscopic viewing image. A hybrid recursive PTV algorithm was used. A concept of epipolar line was adopted to eliminate many spurious candidates.
Deog-Hee Doh +4 more
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Archives of Virology, 2007
For reliable diagnosis of porcine teschovirus (PTV) infection we created an RT-PCR-based molecular strategy for serotyping that encompassed the dominant neutralizing antigenic site of PTV, followed by phylogenetic analyses of amplicons. We identified neutralizing antigenic sites of PTV-1 Talfan strain through epitope mapping of neutralizing monoclonal ...
Y, Kaku +5 more
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For reliable diagnosis of porcine teschovirus (PTV) infection we created an RT-PCR-based molecular strategy for serotyping that encompassed the dominant neutralizing antigenic site of PTV, followed by phylogenetic analyses of amplicons. We identified neutralizing antigenic sites of PTV-1 Talfan strain through epitope mapping of neutralizing monoclonal ...
Y, Kaku +5 more
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LCD-projector-based 3D color PTV
Experimental Thermal and Fluid Science, 2013Abstract Color-based three-dimensional (3D) Particle Tracking Velocimetry (PTV) using a single camera and an liquid crystal display (LCD) projector, which can measure the out-of-plane velocity component from particle color information, is improved for practical use in 3D velocimetry without losing the original simplicity on the optical configuration ...
Tomoaki Watamura +2 more
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Particle Tracking Velocimetry (PTV)
1996Particle Tracking Velocimetry (PTV) is one of the oldest measuring techniques in fluid mechanics. It is often called low particle number density Particle Image Velocimetry (PIV) (Adrian, 1991). The two methods have indeed in common that they determine the velocity from the displacement of particles in a moving fluid during a prescribed time interval ...
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Establishment of a Videogrammetric PTV System
1996A PTV system must be implemented according to the requirements of the hydromechanical problem studied and the image- and data processing envisaged. This will be exemplified in the following.
M. Virant, Th. Dracos
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Videogrammetry: Methodology and PTV/LIF Applications
1996This contribution is meant to introduce into the fundamentals of videogrammetry. Videogrammetry is a vision-based measurement technique using video components (but not exclusively) in order to perform non-contact, on-line, precise measurements. As such it is of crucial importance to both our PTV and LIF systems, which have been developed at ETH Zurich ...
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