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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 | Schools: | School of Mechanical and Aerospace Engineering | 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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File | Description | Size | Format | |
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A detailed comparison of single-camera light-field PIV and tomographic PIV.pdf | 1.96 MB | Adobe PDF | View/Open |
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