Conference Publication Details
Mandatory Fields
McElhinney C.;Hennelly B.;Naughton T.
Journal of Physics: Conference Series 139 (1), 012014
Twin-image reduction in inline digital holography using an object segmentation heuristic
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We present a digital image processing heuristic for the removal of the twin-image in inline digital holograms. Typically, the unwanted twin manifests itself as visible corruptive noise in the reconstruction plane. We reconstruct the unwanted twin-image at its in-focus plane and suppress it by first finding the boundary of the object, and then removing the optical energy within this boundary. In this plane, the wanted twin-image optical energy is largely dispersed outside this boundary and so it is retained. The heuristic's effectiveness is demonstrated using a digital hologram of a real-world object. © 2008 IOP Publishing Ltd.
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