C-smithing of Voyager 2 non-imaging instrument pointing information at Uranus

1988 ◽  
Author(s):  
TSENG-CHAN WANG ◽  
CHARLES ACTON ◽  
IAN UNDERWOOD ◽  
STEPHEN SYNNOTT
Keyword(s):  
Voyager 2 ◽  
Imaging Instrument

Non-contact Hand Vein Imaging by Use of Aerial Guiding Illumination with AIRR

2019 ◽  
pp. 1696
Author(s):  
Ikuya Saji ◽  
Kazuki Kawai ◽  
Ryosuke Kujime ◽  
hirotsugu Yamamoto
Keyword(s):  
Hand Vein ◽  
Vein Imaging

scholarly journals Titan's exosphere and its interaction with Saturn's magnetosphere

2008 ◽  
Vol 367 (1889) ◽  
pp. 743-752 ◽  
Author(s):  
Iannis Dandouras ◽  
Philippe Garnier ◽  
Donald G Mitchell ◽  
Edmond C Roelof ◽  
Pontus C Brandt ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Remote Sensing ◽  
Charge Exchange ◽  
Mass Spectrometer ◽  
Upper Atmosphere ◽  
Neutral Atoms ◽  
Energetic Ions ◽  
Imaging Instrument ◽  
Singly Charged

Titan's nitrogen-rich atmosphere is directly bombarded by energetic ions, due to its lack of a significant intrinsic magnetic field. Singly charged energetic ions from Saturn's magnetosphere undergo charge-exchange collisions with neutral atoms in Titan's upper atmosphere, or exosphere, being transformed into energetic neutral atoms (ENAs). The ion and neutral camera, one of the three sensors that comprise the magnetosphere imaging instrument (MIMI) on the Cassini/Huygens mission to Saturn and Titan, images these ENAs like photons, and measures their fluxes and energies. These remote-sensing measurements, combined with the in situ measurements performed in the upper thermosphere and in the exosphere by the ion and neutral mass spectrometer instrument, provide a powerful diagnostic of Titan's exosphere and its interaction with the Kronian magnetosphere. These observations are analysed and some of the exospheric features they reveal are modelled.

Simulations of exoplanets detection obtained with a high-contrast imaging instrument: CHEOPS

2004 ◽  
Author(s):  
Alessandro Berton ◽  
Raffaele G. Gratton ◽  
Markus Feldt ◽  
Silvano Desidera ◽  
Elena Masciadri ◽  
...  
Keyword(s):  
High Contrast ◽  
Contrast Imaging ◽  
High Contrast Imaging ◽  
Imaging Instrument

scholarly journals Cloud information content analysis of multi-angular measurements in the oxygen A-band: application to 3MI and MSPI

2016 ◽  
Vol 9 (10) ◽  
pp. 4977-4995 ◽  
Author(s):  
Guillaume Merlin ◽  
Jérôme Riedi ◽  
Laurent C. Labonnote ◽  
Céline Cornet ◽  
Anthony B. Davis ◽  
...  
Keyword(s):  
Information Content ◽  
Surface Albedo ◽  
Signal To Noise Ratio ◽  
Quantitative Information ◽  
High Accuracy ◽  
Polarization Imaging ◽  
Angular Measurements ◽  
Black Surface ◽  
Imaging Instrument ◽  
Almost All

Abstract. Information content analyses on cloud top altitude (CTOP) and geometrical thickness (CGT) from multi-angular A-band measurements in the case of monolayer homogeneous clouds are conducted. In the framework of future multi-angular radiometer development, we compared the potential performances of the 3MI (Multi-viewing, Multi-channel and Multi-polarization Imaging) instrument developed by EUMETSAT, which is an extension of POLDER/PARASOL instrument and MSPI (Multiangle SpectroPolarimetric Imager) developed by NASA's Jet Propulsion Laboratory. Quantitative information content estimates were realized for thin, moderately opaque and opaque clouds for different surface albedo and viewing geometry configurations. Analyses show that retrieval of CTOP is possible with a high accuracy in most of the cases investigated. Retrieval of CGT is also possible for optically thick clouds above a black surface, at least when CGT > 1–2 km and for thin clouds for CGT > 2–3 km. However, for intermediate optical thicknesses (COT ≃ 4), we show that the retrieval of CGT is not simultaneously possible with CTOP. A comparison between 3MI and MSPI shows a higher information content for MSPI's measurements, traceable to a thinner filter inside the oxygen A-band, yielding higher signal-to-noise ratio for absorption estimation. Cases of cloud scenes above bright surfaces are more complex but it is shown that the retrieval of CTOP remains possible in almost all situations while the information content on CGT appears to be insufficient in many cases, particularly for COT < 4 and CGT < 2–3 km.

scholarly journals Performance of 3D, navigator echo-gated, contrast-enhanced, magnetic resonance coronary vein imaging in patients undergoing CRT

2014 ◽  
Vol 41 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Adrian Lam ◽  
Luis F. Mora-Vieira ◽  
Michael Hoskins ◽  
Michael Lloyd ◽  
John N. Oshinski
Keyword(s):  
Magnetic Resonance ◽  
Coronary Vein ◽  
Contrast Enhanced ◽  
Navigator Echo ◽  
Vein Imaging

Real-time dual-modal vein imaging system

2018 ◽  
Vol 14 (2) ◽  
pp. 203-213 ◽  
Author(s):  
Christopher A. Mela ◽  
David P. Lemmer ◽  
Forrest Sheng Bao ◽  
Francis Papay ◽  
Tyler Hicks ◽  
...  
Keyword(s):  
Real Time ◽  
Imaging System ◽  
Vein Imaging

Palm Vein Imaging Based on MultiIntensity Illumination

2013 ◽  
Vol 42 (12) ◽  
pp. 1534-1538
Author(s):  
倪旭翔 NI Xuxiang ◽  
高世杰 GAO Shijie ◽  
魏科宇 WEI Keyu ◽  
王莞舒 WANG Wanshu ◽  
崔永胜 CUI Yongsheng
Keyword(s):  
Vein Imaging ◽  
Palm Vein
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