Theoretical and experimental studies of speckle noise in in-line holography of particle fields

Hui Meng, Fazle Hussain, Wallance L. Anderson, David D. Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In line holography of particle fields suffers from image deterioration caused by intrinsic speckle noise. A theoretical model for this process involving multiple particles is developed, which shows that the virtual image of the particle ensemble is the dominant source of speckle in reconstruction. We quantify the effect of the speckle with a signal-to-noise ratio (SNR), which is found to depend on a speckle parameter, embodying particle diameter, concentration, and sample depth, and upon the film gamma. Experimental results show reasonably good agreement with our model. The SNR equation provides prediction of image quality and thence application limits of in-line holography for particle fields. The fundamental understanding obtained here points not only to constraints but also to possible improvements in holographic particle velocimetry (HPV) technique.

Original languageEnglish
Title of host publicationHolographic Particle Image Velocimetry
PublisherPubl by ASME
Pages57-65
Number of pages9
ISBN (Print)0791809560
StatePublished - 1993
EventFluids Engineering Conference - Washington, DC, USA
Duration: Jun 20 1993Jun 24 1993

Publication series

NameAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Volume148

Conference

ConferenceFluids Engineering Conference
CityWashington, DC, USA
Period06/20/9306/24/93

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    Meng, H., Hussain, F., Anderson, W. L., & Liu, D. D. (1993). Theoretical and experimental studies of speckle noise in in-line holography of particle fields. In Holographic Particle Image Velocimetry (pp. 57-65). (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED; Vol. 148). Publ by ASME.