Multispectral imaging with a liquid crystal tunable filter

1995 ◽  
Author(s):  
Peter J. Miller ◽  
Clifford C. Hoyt
Keyword(s):  
Liquid Crystal ◽  
Multispectral Imaging ◽  
Tunable Filter

The Study on Spectral Imaging Technique in Detection of Dermatosis

2012 ◽  
Vol 472-475 ◽  
pp. 879-882
Author(s):  
Yan Ping Chen ◽  
Jiao Dai ◽  
Ling Hua Kong ◽  
Chun Bin Li
Keyword(s):  
Liquid Crystal ◽  
Skin Disease ◽  
Multispectral Imaging ◽  
Imaging Technique ◽  
Spectral Imaging ◽  
Cost Effective ◽  
Tunable Filter ◽  
Human Beings ◽  
Imaging Technology ◽  
Filter Wheel

Dermatosis, a kind of common and frequent disease, is harmful to health and risk against the lives of human beings. The detection of dermatosis is of great significance, especially to the early diagnosis of skin disease. Nowadays, the studies of spectral imaging technology in the diagnosis of skin disease are attracting more and more attentions. In this paper, we firstly review some literary products related to dermatosis detection and then make a comparison among fluorescence spectrum method, filter wheel method, liquid crystal tunable filter (LCTF) method and mosaic multispectral imaging technology. Finally we propose that the smaller, lighter and more cost-effective equipment should be the trend.

High dynamic range multispectral imaging using liquid crystal tunable filter

2010 ◽  
Author(s):  
Boneng Tan ◽  
Ningfang Liao ◽  
Lixun Tian ◽  
Jiajia Wang ◽  
Yusheng Lianry
Keyword(s):  
Liquid Crystal ◽  
Multispectral Imaging ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Tunable Filter ◽  
High Dynamic

Acousto-optic tunable filter multispectral imaging system

1992 ◽  
Author(s):  
LI-JEN CHENG ◽  
TIEN-HSIN CHAO ◽  
GEORGE REYES
Keyword(s):  
Multispectral Imaging ◽  
Imaging System ◽  
Tunable Filter

scholarly journals Hyperspectral Fluorescence LIDAR Based on a Liquid Crystal Tunable Filter for Marine Environment Monitoring

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 410
Author(s):  
Eleonora Aruffo ◽  
Andrea Chiuri ◽  
Federico Angelini ◽  
Florinda Artuso ◽  
Dario Cataldi ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Marine Environment ◽  
Detection System ◽  
Tunable Filter ◽  
Spectral Interval ◽  
Environment Monitoring ◽  
Research Activities ◽  
Custom Made ◽  
New Instrument ◽  
Marine Environment Monitoring

An innovative hyperspectral LIDAR instrument has been developed for applications in marine environment monitoring research activities, remotely detecting the fluorescence spectra produced in the spectral interval between 400 nm and 720 nm. The detection system is composed by a custom made photomultiplier charge integrating and measuring (CIM) unit, which makes automatic background signal subtraction, and a liquid crystal tunable filter (LCTF). The new instrument therefore has hyperspectral resolution and allows automatic background subtraction; it is compact and automated by custom software that permit to adapt the instrument properties depending on the environmental conditions. Laboratory tests to characterize the instrument performance have been carried out, concluding that this sensor can be employed in remote sites for Chl-a detection.

scholarly journals LiCHI – Liquid Crystal Hyperspectral Imager for simultaneous multispectral imaging in aeronomy

2015 ◽  
Vol 23 (14) ◽  
pp. 17772 ◽  
Author(s):  
Chhavi Goenka ◽  
Joshua Semeter ◽  
John Noto ◽  
Jeffrey Baumgardner ◽  
Juanita Riccobono ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Multispectral Imaging
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