Search Results - "Douté, Sylvain"
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Icy lanes on Titan
Published in Nature astronomy (01-07-2019)“…Multivariate analysis of infrared hyperspectral images of the Saturnian satellite Titan reveals widespread ice-rich terrains in the tropics. They are related…”
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Hydrothermal Alteration of Ultramafic Rocks in Ladon Basin, Mars—Insights From CaSSIS, HiRISE, CRISM, and CTX
Published in Journal of geophysical research. Planets (01-01-2023)“…The evolution of the Ladon basin has been marked by intense geological activity and the discharge of huge volumes of water from the Martian highlands to the…”
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Small-Scale Topographical Characterization of the Martian Surface With In-Orbit Imagery
Published in IEEE transactions on geoscience and remote sensing (01-01-2020)“…We present a new method exploiting intensity variations of an image by photoclinometry in order to produce a high-quality, large digital elevation model (DEM)…”
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Fast Bayesian inversion for high dimensional inverse problems
Published in Statistics and computing (15-04-2022)“…We investigate the use of learning approaches to handle Bayesian inverse problems in a computationally efficient way when the signals to be inverted present a…”
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Resolving Ambiguities in SHARAD Data Analysis Using High-Resolution Digital Terrain Models
Published in Remote sensing (Basel, Switzerland) (01-01-2023)“…The SHAllow RADar (SHARAD) onboard Mars Reconnaissance Orbiter (MRO) is a 20 MHz Synthetic Aperture Radar (SAR) that probes the first hundreds of meters of the…”
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Ice state evolution during spring in Richardson crater, Mars
Published in Icarus (New York, N.Y. 1962) (15-11-2018)“…The Martian climate is governed by an annual cycle, that results in the condensation of CO2 ice during winter, up to a meter thick at the pole and thousands of…”
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The impact of asteroid shapes and topographies on their reflectance spectroscopy
Published in Icarus (New York, N.Y. 1962) (01-04-2022)“…Here we report the comparison between unresolved reflectance spectroscopy of Solar System small bodies and laboratory measurements on reference surfaces. We…”
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Ultra-High-Resolution 1 m/pixel CaSSIS DTM Using Super-Resolution Restoration and Shape-from-Shading: Demonstration over Oxia Planum on Mars
Published in Remote sensing (Basel, Switzerland) (01-06-2021)“…We introduce a novel ultra-high-resolution Digital Terrain Model (DTM) processing system using a combination of photogrammetric 3D reconstruction, image…”
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Composition, Physical State, and Distribution of Ices at the Surface of Triton
Published in Icarus (New York, N.Y. 1962) (01-06-1999)“…This paper presents the analysis of near-infrared observations of the icy surface of Triton, recorded on 1995 September 7, with the cooled grating spectrometer…”
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Fusion of photogrammetric and photoclinometric information for high-resolution DEMs from Mars in-orbit imagery
Published in ISPRS journal of photogrammetry and remote sensing (01-08-2017)“…High-resolution Digital Elevation Models (DEMs) of the Martian surface are instrumental for studying the red planet. The Mars Orbiter Laser Altimeter (MOLA)…”
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Exploration of Planetary Hyperspectral Images with Unsupervised Spectral Unmixing: A Case Study of Planet Mars
Published in Remote sensing (Basel, Switzerland) (01-05-2018)“…We propose to replace traditional spectral index methods by unsupervised spectral unmixing methods for the exploration of large datasets of planetary…”
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Megashears and hydrothermalism at the Martian crustal dichotomy in Valles Marineris
Published in Communications earth & environment (01-12-2022)“…Abstract Observations of ancient deep deformation systems on Mars are important for constraining planetary dynamics, as well as to identify potential mineral…”
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Spectral Smile Correction of CRISM/MRO Hyperspectral Images
Published in IEEE transactions on geoscience and remote sensing (01-11-2010)“…The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is affected by a common artifact to pushbroom-type imaging spectrometers, the so-called…”
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Geologic mapping of the Chaac-Camaxtli region of Io from Galileo imaging data
Published in Journal of Geophysical Research (01-09-2002)“…We produced a geologic/geomorphologic map of the Chaac-Camaxtli region of Io's leading anti-Jovian hemisphere using regional resolution (186 m/pixel) Galileo…”
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Empirical Automatic Estimation of the Number of Endmembers in Hyperspectral Images
Published in IEEE geoscience and remote sensing letters (01-01-2013)“…In this letter, an eigenvalue-based empirical method is proposed in order to estimate the number of endmembers in hyperspectral data. This method is based on…”
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Water Ice on Triton
Published in Icarus (New York, N.Y. 1962) (01-09-2000)“…We discuss the spectroscopic detection of H 2O ice on Triton, evidenced by the broad absorption bands in the near infrared at 1.55 and 2.04 μm. The detection…”
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Intercomparison and Validation of Techniques for Spectral Unmixing of Hyperspectral Images: A Planetary Case Study
Published in IEEE transactions on geoscience and remote sensing (01-11-2011)“…As the volume of hyperspectral data for planetary exploration increases, efficient yet accurate algorithms are decisive for their analysis. In this paper, the…”
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Retrieving the characteristics of slab ice covering snow by remote sensing
Published in The cryosphere (15-09-2016)“…We present an effort to validate a previously developed radiative transfer model, and an innovative Bayesian inversion method designed to retrieve the…”
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Sublimation waves: Geomorphic markers of interactions between icy planetary surfaces and winds
Published in Earth-science reviews (01-12-2020)“…Sublimation waves are periodic, linear and transverse bedforms that grow by sublimation of icy substrates under turbulent winds. They occur in different…”
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WAVANGLET: An Efficient Supervised Classifier for Hyperspectral Images
Published in IEEE transactions on geoscience and remote sensing (01-05-2007)“…The new generation of imaging spectrometers onboard planetary missions usually produce hundreds to thousands of images a year, each made up of a thousand to a…”
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