Zobrazeno 1 - 10
of 21
pro vyhledávání: '"J. Luc Forand"'
Publikováno v:
SPIE Proceedings.
We show how to simulate realistic turbulent imagery using only two scalar fields, from which we derive a Gaussian and non-isoplanatic Point-Spread Function (PSF). The first field controls mainly scintillation effects, while the second principally con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aaf862ed71d2325e0ecf311a2d80d09
https://doi.org/10.1117/12.884989
https://doi.org/10.1117/12.884989
Publikováno v:
Imaging Systems.
The most-common method of restoration of turbulence-degraded images restores the sharp edges of an image but makes them jagged. We raise the pixel histograms to a certain order, which creates sharp but straight edges.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e364b5cd96a95fc1aa98d21f1aaa8451
https://doi.org/10.1364/is.2010.iwa5
https://doi.org/10.1364/is.2010.iwa5
Autor:
J. Luc Forand, Denis Dion, Kenneth L. Davidson, Jacques Claverie, Guy Potvin, Paul A. Frederickson
Publikováno v:
Journal of Applied Meteorology and Climatology
Journal of Applied Meteorology and Climatology, American Meteorological Society, 2008, 47 (12), pp.3044-3060. ⟨10.1175/2008jamc1632.1⟩
Journal of Applied Meteorology and Climatology, 2008, 47 (12), pp.3044-3060. ⟨10.1175/2008jamc1632.1⟩
Journal of Applied Meteorology and Climatology, American Meteorological Society, 2008, 47 (12), pp.3044-3060. ⟨10.1175/2008jamc1632.1⟩
Journal of Applied Meteorology and Climatology, 2008, 47 (12), pp.3044-3060. ⟨10.1175/2008jamc1632.1⟩
This article examines some of the difficulties associated with the determination of C2n over water in a coastal region using a bulk model. The analysis shows the need to supplement bulk models with elements that do not belong to traditional Monin–O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c68798529fc1cd2b2ca3edda5aab9e59
https://hal.archives-ouvertes.fr/hal-00537842
https://hal.archives-ouvertes.fr/hal-00537842
Autor:
J. Luc Forand, Arie N. de Jong, Guy Potvin, Karin Stein, Espen Stark, Marcel M. Moerman, Andrea Cini, Hans Winkel, Henrik Vogel, Karin Weiss-Wrana, James R. Buss
Publikováno v:
SPIE Proceedings.
NATO Task group TG16 is cooperating on topics related to ship self-defence. One of these topics is related to IR Search and Track sensors, which are in development for detection of low altitude air targets. In particular the group is working on model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f17055cc0fc63f87a0b6382a576710bd
https://doi.org/10.1117/12.450543
https://doi.org/10.1117/12.450543
Publikováno v:
Atmospheric Propagation, Adaptive Systems, and Laser Radar Technology for Remote Sensing.
Near the sea surface, atmospheric refraction and turbulence affect both IR transmission and image quality. This produces an impact on both the detection and classification/identification of targets. With the financial participation of the U.S. Office
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da8e6de83c7bcdafa0b147b0e6c081b2
https://doi.org/10.1117/12.413824
https://doi.org/10.1117/12.413824
Autor:
Denis Dion, Stuart G. Gathman, Douglas R. Jensen, Paul A. Frederickson, Arie N. de Jong, Kathleen Littfin, William K. Moision, Peter J. Fritz, J. Luc Forand, Gerrit de Leeuw, Kenneth L. Davidson, Carl R. Zeisse
Publikováno v:
Propagation and Imaging through the Atmosphere.
An analysis is presented showing the effects of molecules and aerosols on atmospheric transmission data obtained during the Electro-Optical Propagation Assessment in Coastal Environments (EOPACE) campaign carried out in San Diego during March and Apr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::385d34696bc5c1cb245f3626481ff757
https://doi.org/10.1117/12.279018
https://doi.org/10.1117/12.279018
Publikováno v:
Propagation and Imaging through the Atmosphere.
An analysis is presented showing the effects of refraction, aerosol extinction, and molecular extinction on transmission measurements obtained during the EO Propagation Assessment in Coastal Environments (EOPACE) campaign carried out in San Diego dur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adcd70cb8251bd62d49ab7fd84e877aa
https://doi.org/10.1117/12.283883
https://doi.org/10.1117/12.283883
Autor:
J. Luc Forand
Publikováno v:
Propagation and Imaging through the Atmosphere.
The most recent version (Ver. 6.22) of the marine boundary layer (MBL) profile program, LWWKD, now allows the creation of a single file containing refractivity profiles for a multiple number of horizontal ranges. This file can then be used in the mos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d226fadf44dcab90e3b37252d835b681
https://doi.org/10.1117/12.279022
https://doi.org/10.1117/12.279022
Autor:
J. Luc Forand
Publikováno v:
SPIE Proceedings.
During the first MAPTIP workshop in Oslo, Norway (May 94) after the trial (Oct. 93), a number of working groups were created. These groups reported some of their joint findings at the second workshop in Quebec City, Canada (May 95). This presentation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1d6a38240251c2e530487001d825b08
https://doi.org/10.1117/12.254191
https://doi.org/10.1117/12.254191
Autor:
J. Luc Forand, Denis Dion
Publikováno v:
SPIE Proceedings.
Several marine boundary layer (MBL) models have been developed over the last few years to predict the propagation behavior of electromagnetic radiation near the sea surface. Originally, they were developed to model the refractive effects of the MBL o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1c44e1eb353019b1495ede79018d325
https://doi.org/10.1117/12.254160
https://doi.org/10.1117/12.254160