Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/74981
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dc.titleDetermining the optimum image recording conditions in shearography based on spatial frequency considerations
dc.contributor.authorChau, Fook S.
dc.contributor.authorNg, Tuck-Wah
dc.date.accessioned2014-06-19T09:09:35Z
dc.date.available2014-06-19T09:09:35Z
dc.date.issued1993
dc.identifier.citationChau, Fook S.,Ng, Tuck-Wah (1993). Determining the optimum image recording conditions in shearography based on spatial frequency considerations. Proceedings of SPIE - The International Society for Optical Engineering 1821 : 15-26. ScholarBank@NUS Repository.
dc.identifier.isbn0819410225
dc.identifier.issn0277786X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/74981
dc.description.abstractThe transmission function of a double-exposure shearing specklegram consists of fringe- bearing and non-fringe bearing components. To obtain interference fringes, spatial filtering is performed on the processed specklegram to allow only the fringe-bearing components to pass. The spatial frequency for filtering is often determined on a trial-and-error basis. In this paper, a technique is presented to obtain a spectral distribution from which the optimum spatial filtering frequency can be deduced. Knowledge of the optimum spatial filtering frequency to recording aperture relationship enables better selection of image recording conditions.
dc.sourceScopus
dc.typeConference Paper
dc.contributor.departmentMECHANICAL & PRODUCTION ENGINEERING
dc.description.sourcetitleProceedings of SPIE - The International Society for Optical Engineering
dc.description.volume1821
dc.description.page15-26
dc.description.codenPSISD
dc.identifier.isiutNOT_IN_WOS
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