An endoscopic structured lighting probe using spectral encoding

2011 ◽  
Author(s):  
Neil T. Clancy ◽  
Danail Stoyanov ◽  
Guang-Zhong Yang ◽  
Daniel S. Elson
Keyword(s):  
Structured Lighting ◽  
Spectral Encoding

An endoscopic structured lighting probe using spectral encoding

2011 ◽  
Author(s):  
Neil T. Clancy ◽  
Danail Stoyanov ◽  
Guang-Zhong Yang ◽  
Daniel S. Elson
Keyword(s):  
Structured Lighting ◽  
Spectral Encoding

An endoscopic structured lighting probe using spectral encoding

2011 ◽  
Author(s):  
Neil T. Clancy ◽  
Danail Stoyanov ◽  
Guang-Zhong Yang ◽  
Daniel S. Elson
Keyword(s):  
Structured Lighting ◽  
Spectral Encoding

scholarly journals Experimental demonstration of spectral domain computational ghost imaging

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Piotr Ryczkowski ◽  
Caroline G. Amiot ◽  
John M. Dudley ◽  
Goëry Genty
Keyword(s):  
Signal To Noise Ratio ◽  
Michelson Interferometer ◽  
Spectral Domain ◽  
Proof Of Concept ◽  
Ghost Imaging ◽  
Spectral Measurements ◽  
Spectral Filter ◽  
Wavelength Division ◽  
Spectral Encoding ◽  
Light Effects

AbstractWe demonstrate computational spectral-domain ghost imaging by encoding complementary Fourier patterns directly onto the spectrum of a superluminescent laser diode using a programmable spectral filter. Spectral encoding before the object enables uniform spectral illumination across the beam profile, removing the need for light collection optics and yielding increased signal-to-noise ratio. In addition, the use of complementary Fourier patterns allows reduction of deleterious of parasitic light effects. As a proof-of-concept, we measure the wavelength-dependent transmission of a Michelson interferometer and a wavelength-division multiplexer. Our results open new perspectives for remote broadband spectral measurements.

3D Printed Chipless Tag based on spectral encoding scheme

2021 ◽  
Author(s):  
S. Terranova ◽  
F. Costa ◽  
G. Manara ◽  
S. Genovesi
Keyword(s):  
Encoding Scheme ◽  
Spectral Encoding ◽  
3D Printed

scholarly journals Software package for testing three-dimensional shape measurement methods using structured lighting

2021 ◽  
Vol 2057 (1) ◽  
pp. 012087
Author(s):  
S V Dvoynishnikov ◽  
V O Zuev ◽  
I K Kabardin ◽  
D V Kulikov ◽  
V V Rahmanov
Keyword(s):  
Software Package ◽  
Three Dimensional ◽  
Measurement Methods ◽  
Shape Measurement ◽  
Structured Lighting ◽  
Lighting Conditions ◽  
Ambient Lighting ◽  
Dimensional Shape ◽  
Shadow Maps ◽  
Three Dimensional Shape

Abstract This work aims at creating a universal software package for the development and testing of triangulation methods using structured lighting for measuring the three-dimensional geometry of objects in difficult ambient lighting conditions. As a result, a software package meeting the stated requirements is created. Lighting is based on the Fong model. A method for preloading objects is implemented to optimize the operation of the software package. An accelerated method for creating shadow maps is proposed and implemented. The developed software package is shown to successfully perform all required functions.

scholarly journals Suppression of intensity fluctuations in free space high-speed optical communication based on spectral encoding of a partially coherent beam

2007 ◽  
Vol 280 (2) ◽  
pp. 264-270 ◽  
Author(s):  
Gennady P. Berman ◽  
Alan R. Bishop ◽  
Boris M. Chernobrod ◽  
Dinh C. Nguyen ◽  
Vyacheslav N. Gorshkov
Keyword(s):  
Optical Communication ◽  
Free Space ◽  
High Speed ◽  
Coherent Beam ◽  
Partially Coherent ◽  
Spectral Encoding ◽  
Intensity Fluctuations
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