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Wavelets in geodesy and geodynamics / W. Keller (2004)
Titre : Wavelets in geodesy and geodynamics Type de document : Guide/Manuel Auteurs : W. Keller, Auteur Editeur : Berlin, New York : Walter de Gruyter Année de publication : 2004 Importance : 279 p. Format : 17 x 24 cm ISBN/ISSN/EAN : 978-3-11-017546-2 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse mathématique
[Termes IGN] compression par ondelettes
[Termes IGN] espace de Hilbert
[Termes IGN] filtrage du bruit
[Termes IGN] filtrage linéaire
[Termes IGN] ondelette
[Termes IGN] traitement du signal
[Termes IGN] transformation de FourierRésumé : (Editeur) For many years, digital signal processing has been governed by the theory of Fourier transform and its numerical implementation. The main disadvantage of Fourier theory is the underlying assumption that the signals have time-wise or space-wise invariant statistical properties. In many applications the deviation from a stationary behavior is precisely the information to be extracted from the signals. Wavelets were developed to serve the purpose of analysing such instationary signals. The book gives an introduction to wavelet theory both in the continuous and the discrete case. After developing the theoretical fundament, typical examples of wavelet analysis in the Geosciences are presented. The book has developed from a graduate course held at The University of Calgary and is directed to graduate students who are interested in digital signal processing. The reader is assumed to have a mathematical background on the graduate level. Numéro de notice : 15205 Affiliation des auteurs : non IGN Thématique : MATHEMATIQUE Nature : Manuel de cours Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=55095 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15205-01 23.30 Livre Centre de documentation Mathématiques Disponible Speckle filtering and coherence estimation of polarimetric SAR interferometry data for forest applications / Jong-Sen Lee in IEEE Transactions on geoscience and remote sensing, vol 41 n° 10 (October 2003)
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Titre : Speckle filtering and coherence estimation of polarimetric SAR interferometry data for forest applications Type de document : Article/Communication Auteurs : Jong-Sen Lee, Auteur ; S.R. Cloude, Auteur ; K.P. Papathanassiou, Auteur ; M.R. Grunes, Auteur ; I.H. Woodhouse, Auteur Année de publication : 2003 Article en page(s) : pp 2254 - 2263 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande L
[Termes IGN] estimation de cohérence
[Termes IGN] filtre de déchatoiement
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] matrice
[Termes IGN] Pol-INSARNuméro de notice : A2003-353 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.817196 En ligne : https://doi.org/10.1109/TGRS.2003.817196 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26433
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 10 (October 2003) . - pp 2254 - 2263[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03101 RAB Revue Centre de documentation En réserve L003 Disponible Analysis of multi-dimensional space-filling curves / M.F. Mokbel in Geoinformatica, vol 7 n° 3 (September - November 2003)
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Titre : Analysis of multi-dimensional space-filling curves Type de document : Article/Communication Auteurs : M.F. Mokbel, Auteur ; W.G. Aref, Auteur ; I. Kamel, Auteur Année de publication : 2003 Conférence : ACM GIS 2002, 10th ACM International Symposium on Advances in Geographic Information Systems 08/11/2002 09/11/2002 McLean Virginie - Etats-Unis Selected papers Article en page(s) : pp 179 - 209 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] analyse comparative
[Termes IGN] analyse fractale
[Termes IGN] données localisées 3D
[Termes IGN] espace de Hilbert
[Termes IGN] intelligence artificielleRésumé : (Auteur) A spacefilling curve is a way of mapping the multidimensional space into the 1D space. It acts like a thread that passes through every cell element (or pixel) in the Ddimensional space so that every cell is visited exactly once. There are numerous kinds of spacefilling curves. The difference between such curves is in their way of mapping to the 1D space. Selecting the appropriate curve for any application requires knowledge of the mapping scheme provided by each spacefilling curve. A spacefilling curve consists of a set of segments. Each segment connects two consecutive multidimensional points. Five different types of segments are distinguished, namely, Jump, Contiguity, Reverse, Forward, and Still. A description vector V = (J, C, R, F, S), where J, C, R, F, and S are the percentages of Jump, Contiguity, Reverse, Forward, and Still segments in the spacefilling curve, encapsulates all the properties of a spacefilling curve. The knowledge of V facilitates the process of selecting the appropriate spacefilling curve for different applications. Closed formulas are developed to compute the description vector V for any Ddimensional space and grid size N for different spacefilling curves. A comparative study of different spacefilling curves with respect to the description vector is conducted and results are presented and discussed. Numéro de notice : A2003-199 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1023/A:1025196714293 En ligne : https://doi.org/10.1023/A:1025196714293 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22495
in Geoinformatica > vol 7 n° 3 (September - November 2003) . - pp 179 - 209[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-03031 RAB Revue Centre de documentation En réserve L003 Disponible A road network embedding technique for k-nearest neighbor search in moving object databases / M.R. Kolahdouzan in Geoinformatica, vol 7 n° 3 (September - November 2003)
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Titre : A road network embedding technique for k-nearest neighbor search in moving object databases Type de document : Article/Communication Auteurs : M.R. Kolahdouzan, Auteur ; C. Shahabi, Auteur ; M. Sharifzadeh, Auteur Année de publication : 2003 Conférence : ACM GIS 2002, 10th ACM International Symposium on Advances in Geographic Information Systems 08/11/2002 09/11/2002 McLean Virginie - Etats-Unis Selected papers Article en page(s) : pp 255 - 273 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] base de données localisées
[Termes IGN] classification barycentrique
[Termes IGN] distance euclidienne
[Termes IGN] espace euclidien
[Termes IGN] mise à jour de base de données
[Termes IGN] réseau routier
[Termes IGN] système d'information géographique
[Termes IGN] topologieRésumé : (Auteur) A very important class of queries in GIS applications is the class of Knearest neighbor queries. Most of the current studies on the Knearest neighbor queries utilize spatial index structures and hence are based on the Euclidean distances between the points. In realworld road networks, however, the shortest distance between two points depends on the actual path connecting the points and cannot be computed accurately using one of the Minkowski metrics. Thus, the Euclidean distance may not properly approximate the real distance. In this paper, we apply an embedding technique to transform a road network to a high dimensional space in order to utilize computationally simple Minkowski metrics for distance measurement. Subsequently, we extend our approach to dynamically transform new points into the embedding space. Finally, we propose an efficient technique that can find the actual shortest path between two points in the original road network using only the embedding space. Our empirical experiments indicate that the Chessboard distance metric (L,) in the embedding space preserves the ordering of the distances between a point and its neighbors more precisely as compared to the Euclidean distance in the original road network. Numéro de notice : A2003-202 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1023/A:1025153016110 En ligne : https://doi.org/10.1023/A:1025153016110 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22498
in Geoinformatica > vol 7 n° 3 (September - November 2003) . - pp 255 - 273[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-03031 RAB Revue Centre de documentation En réserve L003 Disponible Crustal velocity field of western Europe from permanent GPS array solutions, 1996–2001 / Jean-Mathieu Nocquet in Geophysical journal international, vol 154 n° 1 (July 2003)
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Titre : Crustal velocity field of western Europe from permanent GPS array solutions, 1996–2001 Type de document : Article/Communication Auteurs : Jean-Mathieu Nocquet , Auteur ; Eric Calais, Auteur Année de publication : 2003 Article en page(s) : pp 72 - 88 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] champ de vitesse
[Termes IGN] déformation de la croute terrestre
[Termes IGN] Europe occidentale
[Termes IGN] Méditerranée, mer
[Termes IGN] tectonique des plaquesRésumé : (auteur) We derive a new geodetic velocity field for western Europe and the Western Mediterranean by rigorously combining (1) a selection of 36 ITRF2000 sites, (2) a solution from a subset of sites of the European Permanent GPS Network (EUREF-EPN), (3) a solution of the French national geodetic permanent GPS network (RGP) and (4) a solution of a permanent GPS network in the western Alps (REGAL). The resulting velocity field describes horizontal crustal motion at 64 sites in Western Europe with an accuracy of the order of 1 mm yr−1 or better. Its analysis shows that Central Europe (defined as east of the Rhine Graben and north of the Alps and the Carpathians) behaves rigidly at a 0.4 mm yr−1 level and defines a stable Europe reference frame. In that reference frame, we find no significant motion at sites located west of the Rhine graben and on the Iberian peninsula, which sets an upper bound of 0.6 mm yr−1 on horizontal motion across the Rhine graben and the Pyrenees. We find that the current strain pattern in the western Alps combines E–W extension and right-lateral shear. We confirm a counterclockwise rotation of the Adriatic microplate, which appears to control the strain pattern along its boundaries in the Friuli area, the Alps and the Apennines. Our results also suggest that the Africa–Eurasia plate motion in the Western Mediterranean may be 40–50 per cent slower that the NUVEL1A plate motion model and rotated 20°–30°counterclockwise. Numéro de notice : A2003-462 Affiliation des auteurs : LASTIG+Ext (2016-2019) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1046/j.1365-246X.2003.01935.x En ligne : https://doi.org/10.1046/j.1365-246X.2003.01935.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101143
in Geophysical journal international > vol 154 n° 1 (July 2003) . - pp 72 - 88[article]Algèbre linéaire / Henri Roudier (2003)PermalinkMigration de CALTOPO, lissage de courbes de niveau / K.R. Kouadio (2003)PermalinkSolutions for exterior orientation in photogrammetry: a review / Pierre Grussenmeyer in Photogrammetric record, vol 17 n° 100 (October 2002 - March 2003)PermalinkVector-lifting schemes for lossless coding and progressive archival of multispectral images / A. Benazza-Benyahia in IEEE Transactions on geoscience and remote sensing, vol 40 n° 9 (September 2002)PermalinkAdaptation du modèle orbitographique Spot 4 aux satellites / J.C. Clerget (2002)PermalinkMesure de la déformation crustale en Europe occidentale par géodésie spatiale / Jean-Mathieu Nocquet (2002)PermalinkAutomatisierung der kartographischen Verdrängung mittels Energieminimierung / Dirk Burghardt (2001)PermalinkEstimation par moindres carrés / Patrick Sillard (2001)PermalinkUtilisation des tenseurs pour la représentation des déformations et de leur degré de signification / Valérie Michel (2001)PermalinkZur Berücksichtigung der geometrischen Objektunsicherheit in der Geoinformatik / Michael Glemser (2001)Permalink