Zobrazeno 1 - 10 of 54 pro vyhledávání: '"Roger Fjortoft"'
1
Akademický článek
Narrow River Extraction From SAR Images Using Exogenous Information
Autor: Nicolas Gasnier, Loic Denis, Roger Fjortoft, Frederic Liege, Florence Tupin
Publikováno v: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 5720-5734 (2021)
Monitoring of rivers is of major scientific and societal importance due to the crucial resource they provide to human activities and the threats caused by flood events. Rapid revisit synthetic aperture radar (SAR) sensors such as Sentinel-1 or the fu
Externí odkaz: https://doaj.org/article/1365c48cfd554ca28146542f5af33b69
Zobrazit plný text záznamu
3
Water Detection in SWOT HR Images Based on Multiple Markov Random Fields
Autor: Brent A. Williams, Florence Tupin, Sylvain Lobry, Roger Fjortoft, Loïc Denis
Publikováno v: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, IEEE, 2019, 12 (11), pp.4315-4326. ⟨10.1109/JSTARS.2019.2948788⟩
One of the main objectives of the surface water and ocean topography (SWOT) mission, scheduled for launch in 2021, is to measure inland water levels using synthetic aperture radar (SAR) interferometry. A key step toward this objective is to precisely
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a5c9836d62c97142dc0a62f5b1eff85
https://hal-ujm.archives-ouvertes.fr/ujm-02450639
Zobrazit plný text záznamu
4
High-Resolution SWOT Simulations of the Macrotidal Seine Estuary in Different Hydrodynamic Conditions
Autor: Damien Desroches, Denis Blumstein, Roger Fjortoft, Imen Turki, Benoit Laignel, Edward Salameh, Damien Allain, Laetitia Chevalier, Florent Lyard
Publikováno v: IEEE Geoscience and Remote Sensing Letters
IEEE Geoscience and Remote Sensing Letters, IEEE-Institute of Electrical and Electronics Engineers, 2019, 16 (1), pp.5-9. ⟨10.1109/LGRS.2018.2862470⟩
(IF 3.53 [2018]; Q1); International audience; The goal of the Surface Water and Ocean Topography (SWOT) mission, a future wide-swath radar altimeter, is to measure the elevations of ocean and continental water surfaces with unprecedented precision. A
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63461d9f98316ecf00b7b715d833a92a
https://hal-normandie-univ.archives-ouvertes.fr/hal-02070406
Zobrazit plný text záznamu
5
Inland Water Height Estimation Without Ground Control Points for Near-Nadir InSAR Data
Autor: Nadine Pourthie, Didier Massonnet, Damien Desroches, Jean-Marc Gaudin, Roger Fjortoft, Javier Duro
Publikováno v: IEEE Geoscience and Remote Sensing Letters. 13:1354-1358
Surface Water and Ocean Topography (SWOT) is a future wide-swath radar altimetry mission. The main instrument is the Ka-band radar interferometer (KaRIn). It provides interferometric radar images that will be processed to obtain water elevation estim
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0047ead404221c24be0f8f8af754a15f
https://doi.org/10.1109/lgrs.2016.2585858
Zobrazit plný text záznamu
6
IASI instrument onboard Metop-A: lessons learned after almost two years in orbit
Autor: Vincent Lonjou, Roger Fjortoft, Bruno Millet, Eric Pequignot, Carole Larigauderie, Denis Blumstein, Laurence Buffet
Publikováno v: International Conference on Space Optics — ICSO 2008.
The Infrared Atmospheric Sounding Interferometer (IASI) is a key element of the MetOp payload, dedicated to operational meteorology. IASI measurements allow to retrieve temperature and humidity profiles at a 1 km vertical resolution with an accuracy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aac201ec172a0a41c14e2882affc2117
https://doi.org/10.1117/12.2308281
Zobrazit plný text záznamu
7
Unsupervised detection of thin water surfaces in SWOT images based on segment detection and connection
Autor: Sylvain Lobry, Florence Tupin, Roger Fjortoft
Publikováno v: IGARSS
IGARSS, Jul 2017, Fort Worth, United States. pp.3720-3723
International audience; The objective of the Surface Water and Ocean Topography(SWOT) mission is to regularly monitor the height of theearth’s water surfaces. One of the challenges toward obtaining global measurements of these surfaces is to detect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d6dad6290b31cb3827804688c133d6f
https://hal.telecom-paris.fr/hal-02287618
Zobrazit plný text záznamu
8
Double MRF for water classification in SAR images by joint detection and reflectivity estimation
Autor: Roger Fjortoft, Loïc Denis, Florence Tupin, Sylvain Lobry
Publikováno v: IGARSS
HAL
Classification of SAR images is a challenging task as the radiometric properties of a class may not be constant throughout the image. The assumption made in most classification algorithms that a class can be modeled by constant parameters is then not
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6310ade4915b717e50f193afc5a01ee7
https://doi.org/10.1109/igarss.2017.8127445
Zobrazit plný text záznamu
9
KaRIn on SWOT: Characteristics of Near-Nadir Ka-Band Interferometric SAR Imagery
Autor: Roger Fjortoft, Joseph Martinot-Lagarde, Nadine Pourthie, J.F. Nouvel, Jean-Claude Lalaurie, Pierre Borderies, Jean-Marc Gaudin, A. Mallet, Sandrine Daniel, Christian Ruiz, Helene Oriot
Publikováno v: IEEE Transactions on Geoscience and Remote Sensing. 52:2172-2185
The principal instrument of the NASA/CNES wide-swath altimetry mission Surface Water and Ocean Topography (SWOT) is the Ka-band Radar Interferometer (KaRIn), a bistatic synthetic aperture radar (SAR) system operating on near-nadir swaths on both side
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37b509e9687665420b6c92bd221480a1
https://doi.org/10.1109/tgrs.2013.2258402
Zobrazit plný text záznamu
10
Empirical Cross-Calibration of Coherent SWOT Errors Using External References and the Altimetry Constellation
Autor: Jean-Claude Souyris, A. Mallet, Juliette Lambin, Michael Ablain, S. Labroue, Roger Fjortoft, G. Dibarboure
Publikováno v: IEEE Transactions on Geoscience and Remote Sensing. 50:2325-2344
This paper gives an overview of an empirical cross-calibration technique developed for the Surface Water Ocean Topography mission (SWOT). The method is here used to detect and to mitigate two spatially coherent errors in SWOT topography data: the bas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f5c8948ec3f15ab4bd595467a891b244
https://doi.org/10.1109/tgrs.2011.2171976
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje