Optical coherence tomography with gapped spectrum

The axial resolution of optical coherence tomography (OCT) is determined by the spectral shape and bandwidth of the detected light, which are limited by the gaps in the wavelength range of illumination, transmission, and detection. In this paper, we demonstrate that the axial resolution deteriorated...

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Main Authors: Wang, Nanshuo, Liu, Xinyu, Yu, Xiaojun, Chen, Si, Chen, Shi, Liu, Linbo
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/145368
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1453682020-12-18T07:58:02Z Optical coherence tomography with gapped spectrum Wang, Nanshuo Liu, Xinyu Yu, Xiaojun Chen, Si Chen, Shi Liu, Linbo School of Electrical and Electronic Engineering School of Chemical and Biomedical Engineering Engineering::Electrical and electronic engineering Optical Coherence Tomography Estimation The axial resolution of optical coherence tomography (OCT) is determined by the spectral shape and bandwidth of the detected light, which are limited by the gaps in the wavelength range of illumination, transmission, and detection. In this paper, we demonstrate that the axial resolution deteriorated by gaps in OCT spectra can be restored by adopting the gapped amplitude and phase estimation (GAPES) method. GAPES estimates the missing parts between separated spectral bands and obtains the axial profile of tissue with reduced sidelobe artifacts compared to the gapped spectra and significantly improved axial resolution over the individual bands. This technique may make it possible to combine spectrally separated sources and detectors to improve axial resolution in OCT images. Ministry of Education (MOE) National Medical Research Council (NMRC) National Research Foundation (NRF) Published version This work was supported inpart by the National Research Foundation Singapore under Grant NRF-CRP13-2014-05, in part by the National Medical Research Council Singapore under Grant NMRC/CBRG/0036/2013, in part by the Ministry of Education Singapore under Grant MOE2013-T2-2-107, and in part by the NTU-AIT-MUV program in advanced biomedical imaging under Grant NAM/15005. 2020-12-18T07:58:02Z 2020-12-18T07:58:02Z 2019 Journal Article Wang, N., Liu, X., Yu, X., Chen, S., Chen, S., & Liu, L. (2019). Optical coherence tomography with gapped spectrum. IEEE Photonics Journal, 11(2), 8635335-. doi:10.1109/JPHOT.2019.2897607 1943-0655 https://hdl.handle.net/10356/145368 10.1109/JPHOT.2019.2897607 2 11 en NRF-CRP13-2014-05 NMRC/CBRG/0036/2013 MOE2013-T2-2-107 NAM/15005 IEEE Photonics Journal © 2019 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. Articles accepted before 12 June 2019 were published under a CC BY 3.0 or the IEEE Open Access Publishing Agreement license. Questions about copyright policies or reuse rights may be directed to the IEEE Intellectual Property Rights Office at +1-732-562-3966 or copyrights@ieee.org. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Optical Coherence Tomography
Estimation
spellingShingle Engineering::Electrical and electronic engineering
Optical Coherence Tomography
Estimation
Wang, Nanshuo
Liu, Xinyu
Yu, Xiaojun
Chen, Si
Chen, Shi
Liu, Linbo
Optical coherence tomography with gapped spectrum
description The axial resolution of optical coherence tomography (OCT) is determined by the spectral shape and bandwidth of the detected light, which are limited by the gaps in the wavelength range of illumination, transmission, and detection. In this paper, we demonstrate that the axial resolution deteriorated by gaps in OCT spectra can be restored by adopting the gapped amplitude and phase estimation (GAPES) method. GAPES estimates the missing parts between separated spectral bands and obtains the axial profile of tissue with reduced sidelobe artifacts compared to the gapped spectra and significantly improved axial resolution over the individual bands. This technique may make it possible to combine spectrally separated sources and detectors to improve axial resolution in OCT images.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Wang, Nanshuo
Liu, Xinyu
Yu, Xiaojun
Chen, Si
Chen, Shi
Liu, Linbo
format Article
author Wang, Nanshuo
Liu, Xinyu
Yu, Xiaojun
Chen, Si
Chen, Shi
Liu, Linbo
author_sort Wang, Nanshuo
title Optical coherence tomography with gapped spectrum
title_short Optical coherence tomography with gapped spectrum
title_full Optical coherence tomography with gapped spectrum
title_fullStr Optical coherence tomography with gapped spectrum
title_full_unstemmed Optical coherence tomography with gapped spectrum
title_sort optical coherence tomography with gapped spectrum
publishDate 2020
url https://hdl.handle.net/10356/145368
_version_ 1688654633919053824