Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88951
Title: A detailed comparison of single-camera light-field PIV and tomographic PIV
Authors: Shi, Shengxian
Ding, Junfei
Atkinson, Callum
Soria, Julio
New, Tze How
Keywords: DRNTU::Engineering::Mechanical engineering
Light-field Camera
Light-field Particle Image Velocimetry
Issue Date: 2018
Source: Shi, S., Ding, J., Atkinson, C., Soria, J., & New, T. H. (2018). A detailed comparison of single-camera light-field PIV and tomographic PIV. Experiments in Fluids, 59(3), 46-. doi:10.1007/s00348-018-2500-9
Series/Report no.: Experiments in Fluids
Abstract: This paper conducts a comprehensive study between the single-camera light-field particle image velocimetry (LF-PIV) and the multi-camera tomographic particle image velocimetry (Tomo-PIV). Simulation studies were first performed using synthetic light-field and tomographic particle images, which extensively examine the difference between these two techniques by varying key parameters such as pixel to microlens ratio (PMR), light-field camera Tomo-camera pixel ratio (LTPR), particle seeding density and tomographic camera number. Simulation results indicate that the single LF-PIV can achieve accuracy consistent with that of multi-camera Tomo-PIV, but requires the use of overall greater number of pixels. Experimental studies were then conducted by simultaneously measuring low-speed jet flow with single-camera LF-PIV and four-camera Tomo-PIV systems. Experiments confirm that given a sufficiently high pixel resolution, a single-camera LF-PIV system can indeed deliver volumetric velocity field measurements for an equivalent field of view with a spatial resolution commensurate with those of multi-camera Tomo-PIV system, enabling accurate 3D measurements in applications where optical access is limited.
URI: https://hdl.handle.net/10356/88951
http://hdl.handle.net/10220/48341
ISSN: 0723-4864
DOI: 10.1007/s00348-018-2500-9
Rights: © 2018 Springer-Verlag GmbH Germany, part of Springer Nature. All rights reserved. This paper was published in Experiments in Fluids and is made available with permission of Springer-Verlag GmbH Germany, part of Springer Nature.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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