Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter

In the past decade, underwater spectral imaging (USI) has shown great potential in underwater exploration for its high spectral and spatial resolution. This proposal presents a stare-type USI system combined with the liquid crystal tunable filter (LCTF) spectral splitting device. Considering the wor...

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Autores principales:	Hong Song, Syed Raza Mehdi, Chaopeng Wu, Zixin Li, Hai Gong, Amjad Ali, Hui Huang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	spectral imaging underwater imaging liquid crystal tunable filter spectral resolution spectral calibration Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/af6d094d1cfa42198ba21068036365a4
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id	oai:doaj.org-article:af6d094d1cfa42198ba21068036365a4
record_format	dspace
spelling	oai:doaj.org-article:af6d094d1cfa42198ba21068036365a42021-11-25T18:04:18ZUnderwater Spectral Imaging System Based on Liquid Crystal Tunable Filter10.3390/jmse91112062077-1312https://doaj.org/article/af6d094d1cfa42198ba21068036365a42021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1206https://doaj.org/toc/2077-1312In the past decade, underwater spectral imaging (USI) has shown great potential in underwater exploration for its high spectral and spatial resolution. This proposal presents a stare-type USI system combined with the liquid crystal tunable filter (LCTF) spectral splitting device. Considering the working features of LCTF and the theoretical model of USI, the core structure containing “imaging lens-LCTF-imaging sensor” is designed and developed. The system is compact, and the optical geometry is constructed minimally. The spectral calibration test analysis proved that the spectral response range of the system covers a full band of 400 nm to 700 nm with the highest spectral resolution between 6.7 nm and 18.5 nm. The experiments show that the system can quickly collect high-quality spectral image data by switching between different spectral bands arbitrarily. The designed prototype provides a feasible and reliable spectral imaging solution for in situ underwater targets observation with high spectrum collecting efficiency.Hong SongSyed Raza MehdiChaopeng WuZixin LiHai GongAmjad AliHui HuangMDPI AGarticlespectral imagingunderwater imagingliquid crystal tunable filterspectral resolutionspectral calibrationNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1206, p 1206 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	spectral imaging underwater imaging liquid crystal tunable filter spectral resolution spectral calibration Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	spectral imaging underwater imaging liquid crystal tunable filter spectral resolution spectral calibration Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Hong Song Syed Raza Mehdi Chaopeng Wu Zixin Li Hai Gong Amjad Ali Hui Huang Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter
description	In the past decade, underwater spectral imaging (USI) has shown great potential in underwater exploration for its high spectral and spatial resolution. This proposal presents a stare-type USI system combined with the liquid crystal tunable filter (LCTF) spectral splitting device. Considering the working features of LCTF and the theoretical model of USI, the core structure containing “imaging lens-LCTF-imaging sensor” is designed and developed. The system is compact, and the optical geometry is constructed minimally. The spectral calibration test analysis proved that the spectral response range of the system covers a full band of 400 nm to 700 nm with the highest spectral resolution between 6.7 nm and 18.5 nm. The experiments show that the system can quickly collect high-quality spectral image data by switching between different spectral bands arbitrarily. The designed prototype provides a feasible and reliable spectral imaging solution for in situ underwater targets observation with high spectrum collecting efficiency.
format	article
author	Hong Song Syed Raza Mehdi Chaopeng Wu Zixin Li Hai Gong Amjad Ali Hui Huang
author_facet	Hong Song Syed Raza Mehdi Chaopeng Wu Zixin Li Hai Gong Amjad Ali Hui Huang
author_sort	Hong Song
title	Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter
title_short	Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter
title_full	Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter
title_fullStr	Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter
title_full_unstemmed	Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter
title_sort	underwater spectral imaging system based on liquid crystal tunable filter
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/af6d094d1cfa42198ba21068036365a4
work_keys_str_mv	AT hongsong underwaterspectralimagingsystembasedonliquidcrystaltunablefilter AT syedrazamehdi underwaterspectralimagingsystembasedonliquidcrystaltunablefilter AT chaopengwu underwaterspectralimagingsystembasedonliquidcrystaltunablefilter AT zixinli underwaterspectralimagingsystembasedonliquidcrystaltunablefilter AT haigong underwaterspectralimagingsystembasedonliquidcrystaltunablefilter AT amjadali underwaterspectralimagingsystembasedonliquidcrystaltunablefilter AT huihuang underwaterspectralimagingsystembasedonliquidcrystaltunablefilter
_version_	1718411701383069696

Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter

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