Pitkäaho, Tomi and Naughton, Thomas J. (2011) Calculating depth maps from digital holograms using stereo disparity. Optics Letters, 36 (11). pp. 2035-2037. ISSN 0146-9592

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Abstract

Depth extraction is an important aspect of three-dimensional (3D) image processing with digital holograms and an essential step in extended focus imaging and metrology. All available depth extraction techniques with macroscopic objects are based on variance; however, the effectiveness of this is object dependent. We propose to use disparity between corresponding points in intensity reconstructions to determine depth. Our method requires a single hologram of a scene, from which we reconstruct two different perspectives. In the reconstruction the phase information is not needed, which makes this method useful for in-line digital holography. To our knowledge disparity based 3D image processing has never been proposed before for digital holography.

Item Type:	Article
Keywords:	Holography; Digital holography; Three-dimensional image processing; Image processing; Digital image processing;
Academic Unit:	Faculty of Science and Engineering > Computer Science Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	12381
Identification Number:	https://doi.org/10.1364/OL.36.002035
Depositing User:	Thomas Naughton
Date Deposited:	07 Feb 2020 16:03
Journal or Publication Title:	Optics Letters
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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