Improved three-dimensional localization of multiple small objects in close proximity in digital holography

Hall, Matthew L., McCall, Philip ORCID: https://orcid.org/0000-0002-0007-3985, Towers, Catherine E. and Towers, David P. (2021) 'Improved three-dimensional localization of multiple small objects in close proximity in digital holography'. Applied Optics, Vol 60, Issue 4, A285-A295.

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Abstract

Using intensity gradient- or sparsity-based focus metrics, the ability to accurately localize the three-dimensional (3D) position of a small object in a digital holographic reconstruction of a large field of view is hindered in the presence of multiple nearby objects. A more accurate alternative method for 3D localization, based on evaluation of the complex reconstructed volume, is proposed. Simulations and experimental data demonstrate a reduction in depth positional error for single objects and a notably improved axial resolution of multiple objects in close proximity.

Item Type:	Article
Subjects:	QX Parasitology > Insects. Other Parasites > QX 510 Mosquitoes WC Communicable Diseases > Tropical and Parasitic Diseases > WC 680 Tropical diseases (General) WW Ophthalmology > WW 100 General works
Faculty: Department:	Biological Sciences > Vector Biology Department
Digital Object Identifer (DOI):	https://doi.org/10.1364/AO.404432
Depositing User:	Samantha Sheldrake
Date Deposited:	09 Dec 2020 12:14
Last Modified:	09 Dec 2020 12:14
URI:	https://archive.lstmed.ac.uk/id/eprint/16299

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