Development and experimental validation of a novel algorithm to estimate the speed of objects moving faster than the capture speed of cameras

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dc.contributor.authorYildiz, Ibrahim
dc.date.accessioned2024-02-23T14:13:21Z
dc.date.available2024-02-23T14:13:21Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractMeasuring the vibration frequency of structures with image processing methods is one of the non-contact measurement methods. However, the frequency to be measured should be lower than the camera capture speed. In this study, a method was developed to extract and to compare pattern characteristics of data acquired from a pixel of a low-speed camera. At the first stage, images of a rotating disk were recorded at known frequencies to find out the camera's response. After that, distinctive features were extracted both from the raw and clustered intensity data acquired from the pixels of the recorded images. At the second stage, pixel intensity data of a rotating disk with an unknown frequency was also recorded with the same camera. Similarly, features were extracted from these data, and they were compared with the features at known frequencies. A frequency range was found for the unknown frequency value in this way. Finally, the unknown frequency value was estimated by interpolation in the frequency range. The method was verified on an experimental setup, and five unknown frequency values were successfully estimated. Consequently, higher frequencies than the capture speed of the camera were correctly estimated using the developed method. On the other hand, it was also noticed that the clustering of the discrete intensity data was also significant.en_US
dc.identifier.doi10.1016/j.optlaseng.2019.105994
dc.identifier.issn0143-8166
dc.identifier.issn1873-0302
dc.identifier.scopus2-s2.0-85077493600en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.optlaseng.2019.105994
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12403
dc.identifier.volume128en_US
dc.identifier.wosWOS:000534067900003en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofOptics And Lasers In Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFrequency Estimationen_US
dc.subjectLow-Speed Camerasen_US
dc.subjectFeature Recognitionen_US
dc.subjectSignal Processingen_US
dc.subjectImage Processingen_US
dc.titleDevelopment and experimental validation of a novel algorithm to estimate the speed of objects moving faster than the capture speed of camerasen_US
dc.typeArticleen_US

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