McElhinney, Conor P. and Hennelly, Bryan M. and Naughton, Thomas J. (2008) Twin-image Reduction in Inline Digital Holography using an Object Segmentation Heuristic. Journal of Physics: Conference Series, 139 (1). 012014-1-012014-5. ISSN 1742-6588

Preview

Download (941kB) | Preview

Abstract

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.

Item Type:	Article
Keywords:	Twin-image Reduction; Inline Digital Holography; Object Segmentation Heuristic;
Academic Unit:	Faculty of Science and Engineering > Computer Science
Item ID:	8453
Identification Number:	https://doi.org/10.1088/1742-6596/139/1/012014
Depositing User:	Thomas Naughton
Date Deposited:	12 Jul 2017 15:54
Journal or Publication Title:	Journal of Physics: Conference Series
Publisher:	Institute of Physics
Refereed:	Yes
URI:	http://iopscience.iop.org

Repository Staff Only(login required)

Item control page

Downloads