Sparsity based Terahertz reflective off-axis digital holography
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wan, Min | - |
dc.contributor.author | Muniraj, Inbarasan | - |
dc.contributor.author | Malallah, Ra'ed | - |
dc.contributor.author | Zhao, Liang | - |
dc.contributor.author | Ryle, James P. | - |
dc.contributor.author | Rong, Lu | - |
dc.contributor.author | Healy, John J. | - |
dc.contributor.author | Wang, Dayong | - |
dc.contributor.author | Sheridan, John T. | - |
dc.date.accessioned | 2017-08-17T15:47:17Z | - |
dc.date.available | 2017-08-17T15:47:17Z | - |
dc.date.copyright | 2017 SPIE | en |
dc.date.issued | 2017-04-24 | - |
dc.identifier.uri | http://hdl.handle.net/10197/8721 | - |
dc.description | Holography: Advances and Modern Trends V, Prague, Czech Republic, 24 April 2017 | en |
dc.description.abstract | Terahertz radiation lies between the microwave and infrared regions in the electromagnetic spectrum. Emitted frequencies range from 0.1 to 10 THz with corresponding wavelengths ranging from 30 m to 3 mm. In this paper, a continuous-wave Terahertz off-axis digital holographic system is described. A Gaussian fitting method and image normalisation techniques were employed on the recorded hologram to improve the image resolution. A synthesised contrast enhanced hologram is then digitally constructed. Numerical reconstruction is achieved using the angular spectrum method of the filtered off-axis hologram. A sparsity based compression technique is introduced before numerical data reconstruction in order to reduce the dataset required for hologram reconstruction. Results prove that a tiny amount of sparse dataset is sufficient in order to reconstruct the hologram with good image quality. | en |
dc.description.sponsorship | Science Foundation Ireland | en |
dc.language.iso | en | en |
dc.publisher | Society of Photo-optical Instrumentation Engineers (SPIE) | en |
dc.relation.ispartof | Hrabovský, M., Sheridan, J. T. and Fimia, F. (eds.). Holography: Advances and Modern Trends V (Volume 10233) | en |
dc.subject | Personal sensing | en |
dc.subject | Terahertz imaging | en |
dc.subject | Digital holography | en |
dc.subject | Sparsity | en |
dc.title | Sparsity based Terahertz reflective off-axis digital holography | en |
dc.type | Conference Publication | en |
dc.status | Peer reviewed | en |
dc.identifier.doi | 10.1117/12.2264788 | - |
dc.identifier.doi | 10.1117/12.2265686 | - |
dc.neeo.contributor | Wan|Min|aut| | - |
dc.neeo.contributor | Muniraj|Inbarasan|aut| | - |
dc.neeo.contributor | Malallah|Ra'ed|aut| | - |
dc.neeo.contributor | Zhao|Liang|aut| | - |
dc.neeo.contributor | Ryle|James P.|aut| | - |
dc.neeo.contributor | Rong|Lu|aut| | - |
dc.neeo.contributor | Healy|John J.|aut| | - |
dc.neeo.contributor | Wang|Dayong|aut| | - |
dc.neeo.contributor | Sheridan|John T.|aut| | - |
dc.description.othersponsorship | Insight Research Centre | en |
dc.date.updated | 2017-05-12T11:51:52Z | - |
dc.rights.license | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | en |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
Appears in Collections: | Electrical and Electronic Engineering Research Collection Insight Research Collection |
Files in This Item:
File | Size | Format | |
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Download | insight_publication.pdf | 582.61 kB | Adobe PDF |
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