Dot tracking methodology for background-oriented schlieren (BOS)
Sign Up to like & getrecommendations! Published in 2019 at "Experiments in Fluids"
DOI: 10.1007/s00348-019-2793-3
Abstract: We propose a dot-tracking methodology for processing Background Oriented Schlieren (BOS) images. The method significantly improves the accuracy, precision and spatial resolution compared to conventional cross-correlation algorithms. Our methodology utilizes the prior information about the… read more here.
Keywords: methodology; dot tracking; tracking methodology; oriented schlieren ... See more keywords
Fast and robust volumetric refractive index measurement by unified background-oriented schlieren tomography
Sign Up to like & getrecommendations! Published in 2020 at "Experiments in Fluids"
DOI: 10.1007/s00348-020-2912-1
Abstract: Abstract We propose a novel approach to background-oriented schlieren (BOS) tomography (BOST) that unifies the deflection sensing and reconstruction algorithms. BOS is a 2D flow visualization technique that renders light deflections due to refraction in… read more here.
Keywords: oriented schlieren; bost; background oriented; tomography ... See more keywords
Fast and robust method for flow analysis using GPU assisted diffractive optical element based background oriented schlieren (BOS)
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105908
Abstract: Abstract The paper introduces a method for studying flow dynamics using diffractive optical element based background-oriented schlieren (BOS). Our method relies on fringe demodulation using root multiple signal classification technique which provides high robustness against… read more here.
Keywords: diffractive optical; element based; based background; method ... See more keywords
Tomographic background oriented schlieren using plenoptic cameras
Sign Up to like & getrecommendations! Published in 2021 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/ac3b09
Abstract: The development of a tomographic background oriented schlieren implementation system utilizing up to four plenoptic cameras is presented. A systematic set of experiments was performed using a pair of solid dimethylpolysiloxan cylinders immersed in a… read more here.
Keywords: oriented schlieren; plenoptic cameras; background oriented; tomographic background ... See more keywords
Projection background-oriented schlieren.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.458770
Abstract: A background-oriented schlieren (BOS) system is developed with two benefits over traditional BOS systems. First, the dot pattern required for BOS is projected onto a retroreflective background instead of being painted/printed onto the material itself,… read more here.
Keywords: projection background; optics; oriented schlieren; dot pattern ... See more keywords
Evolutionary background-oriented schlieren tomography with self-adaptive parameter heuristics.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.450036
Abstract: For volumetric reconstruction of the refractive index field in a flow, background-oriented schlieren (BOS) imaging which measures the deflection of light rays due to refractive index variations is combined with an evolutionary tomographic algorithm for… read more here.
Keywords: oriented schlieren; tomography; self adaptive; background oriented ... See more keywords
Direct background-oriented schlieren tomography using radial basis functions.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.459872
Abstract: Background-oriented schlieren tomography (BOST) is effective for flow field measurement; however, different from general computed tomography (CT), the BOST utilizes the deflection of rays passing through an inhomogeneous field for measurement. It is sensitive to… read more here.
Keywords: refractive index; oriented schlieren; tomography; background oriented ... See more keywords