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Improved 3D localisation of multiple small objects in close-proximity in digital holography
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Hall, Matthew, McCall, Philip J., Towers, Catherine E. and Towers, David P. (2021) Improved 3D localisation of multiple small objects in close-proximity in digital holography. Applied Optics, 60 (4). A285-A295. doi:10.1364/AO.404432 ISSN 0003-6935.
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Official URL: https://doi.org/10.1364/AO.404432
Abstract
Using intensity gradient based or sparsity based focusmetrics, the ability to accurately localise the 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 localisation, based on evaluation of the complex reconstructed volume, is proposed.Simulations and experimental data demonstrate a reduction in depth positional error for single objects anda notably improved axial resolution of multiple objectsin close proximity.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Holography -- Data processing, Image processing -- Digital techniques, Three-dimensional imaging | ||||||||
| Journal or Publication Title: | Applied Optics | ||||||||
| Publisher: | Optical Society of America | ||||||||
| ISSN: | 0003-6935 | ||||||||
| Official Date: | 1 February 2021 | ||||||||
| Dates: |
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| Volume: | 60 | ||||||||
| Number: | 4 | ||||||||
| Page Range: | A285-A295 | ||||||||
| DOI: | 10.1364/AO.404432 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Reuse Statement (publisher, data, author rights): | © 2020 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. | ||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||
| Date of first compliant deposit: | 27 October 2020 | ||||||||
| Date of first compliant Open Access: | 8 July 2021 | ||||||||
| RIOXX Funder/Project Grant: |
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