Darakis, Emmanouil and Naughton, Thomas J. and Soraghan, John J. (2007) Compression defects in different reconstructions from phase-shifting digital holographic data. Applied Optics, 46 (21). pp. 4579-4586. ISSN 1559-128X

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Abstract

Three principal strategies for the compression of phase-shifting digital holograms (interferogram domain-, hologram domain-, and reconstruction domain-based strategies) are reviewed and their effects in the reconstruction domain are investigated. Images of the reconstructions are provided to visually compare the performances of the methods. In addition to single reconstructions the compression effects on different depth reconstructions and reconstructions corresponding to different viewing angles are investigated so that a range of the 3D aspects of the holograms may be considered. Although comparable at low compression rates, it is found that depth and perspective information is degraded in different ways with the different techniques at high compression rates. A hologram of an object with sufficient details at different depths is used so that both parallax and depth effects can be illustrated.

Item Type:	Article
Keywords:	Phase shift; Computer holography; Holographic interferometry; Digital image processing; Image quality assessment;
Academic Unit:	Faculty of Science and Engineering > Computer Science Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	12388
Identification Number:	https://doi.org/10.1364/AO.46.004579
Depositing User:	Thomas Naughton
Date Deposited:	07 Feb 2020 15:15
Journal or Publication Title:	Applied Optics
Publisher:	Optical Society of America
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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