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China's Beidou navigation project / J. Van Haaften in Geoinformatics, vol 10 n° 1 (01/01/2007)
[article]
Titre : China's Beidou navigation project Type de document : Article/Communication Auteurs : J. Van Haaften, Auteur Année de publication : 2007 Article en page(s) : pp 12 - 13 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] BeiDou
[Termes IGN] Chine
[Termes IGN] constellation BeiDou
[Termes IGN] précision décamétriqueRésumé : (Auteur) Beidou is the chinese name of the constellation known in English as the Big Dipper or the Great Bear. It is also the name of an independent satellite navigation system, a project of the People's Republic or China. China has announced that the system will be fully operational by 2008 and will offer open service with an accuracy of ten meters. Three satellites have already been launched. Copyright GEOinformatics Numéro de notice : A2007-072 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28437
in Geoinformatics > vol 10 n° 1 (01/01/2007) . - pp 12 - 13[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-07011 SL Revue Centre de documentation Revues en salle Disponible Delineating lakes and enclosed islands in satellite imagery by geodesic active contour model / C. Shen in International Journal of Remote Sensing IJRS, vol 27 n°23-24 (December 2006)
[article]
Titre : Delineating lakes and enclosed islands in satellite imagery by geodesic active contour model Type de document : Article/Communication Auteurs : C. Shen, Auteur ; J. Fan, Auteur ; F. Li, Auteur Année de publication : 2006 Article en page(s) : pp 5253 - 5268 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] calcul différentiel
[Termes IGN] Chine
[Termes IGN] classification non dirigée
[Termes IGN] couleur (variable spectrale)
[Termes IGN] détection de contours
[Termes IGN] image en couleur
[Termes IGN] image en couleur composée
[Termes IGN] image Landsat-ETM+
[Termes IGN] lac
[Termes IGN] MNS SRTM
[Termes IGN] modèle numérique de surfaceRésumé : (Auteur) The objective of the present paper is to develop a new method for delineating lakes and enclosed islands from shuttle radar topography mission (SRTM) digital elevation model (DEM). The Thousand-Island Lake in China is chosen as the study site. DEM may have missing values or be inaccurate over water bodies. Thus, it is not trivial to delineate the shorelines of lake directly from DEM. We achieve this objective by overlaying the boundary derived from the Landsat image of the same area. Unlike traditional water body delineation techniques, e.g. the band ratio method, which make use of physical quantities, we only use the colour information from Landsat ETM+ band 7, 4 and 2. The main reason is that the colour information is the only resource available for most publicly available satellite data such as the maps from Google Earth. Thus, it is necessary to develop a method depending on only colour information. In the Landsat image, a discrimination function to determine whether a pixel belongs to the lake area is obtained by studying sample pixels chosen from the lake area. The delineation of shorelines is an evolutionary process. The evolution equation is derived according to the active contour model and the discrimination function. The initial contour is inside the lake and expands according to the evolution equation. The evolving curve converges to the boundaries of the lake efficiently with a satisfactory result. Finally, the shorelines are overlaid on the DEM according to latitude and longitude. Our geodesic active contour method is a general one, and could be used to delineate objects of interest such as oil slicks and burn scars in satellite images. Copyright Taylor & Francis Numéro de notice : A2006-581 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160600857444 En ligne : https://doi.org/10.1080/01431160600857444 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28304
in International Journal of Remote Sensing IJRS > vol 27 n°23-24 (December 2006) . - pp 5253 - 5268[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 080-06121 RAB Revue Centre de documentation En réserve L003 Disponible An extended cellular automaton using case-based reasoning for simulating urban development in a large complex region / X. Li in International journal of geographical information science IJGIS, vol 20 n° 10 (november 2006)
[article]
Titre : An extended cellular automaton using case-based reasoning for simulating urban development in a large complex region Type de document : Article/Communication Auteurs : X. Li, Auteur ; X. Liu, Auteur Année de publication : 2006 Article en page(s) : pp 1109 - 1136 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] automate cellulaire
[Termes IGN] Chine
[Termes IGN] classification barycentrique
[Termes IGN] complexité
[Termes IGN] croissance urbaine
[Termes IGN] delta
[Termes IGN] delta de la rivière des perles
[Termes IGN] image multitemporelle
[Termes IGN] raisonnement
[Termes IGN] simulation dynamique
[Termes IGN] système d'information géographiqueRésumé : (Auteur) Rule-based cellular automata (CA) have been increasingly applied to the simulation of geographical phenomena, such as urban evolution and land-use changes. However, these models have difficulties and uncertainties in soliciting transition rules for a large complex region. This paper presents an extended cellular automaton in which transition rules are represented by using case-based reasoning (CBR) techniques. The common k-NN algorithm of CBR has been modified to incorporate the location factor to reflect the spatial variation of transition rules. Multi-temporal remote-sensing images are used to obtain the adaptation knowledge in the temporal dimension. This model has been applied to the simulation of urban development in the Pearl River Delta which has a hierarchy of cities. Comparison indicates that this model can produce more plausible results than rule-based CA in simulating this large complex region in 1988-2002. Copyright Taylor & Francis Numéro de notice : A2006-452 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810600816870 En ligne : https://doi.org/10.1080/13658810600816870 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28176
in International journal of geographical information science IJGIS > vol 20 n° 10 (november 2006) . - pp 1109 - 1136[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-06101 RAB Revue Centre de documentation En réserve L003 Disponible 079-06102 RAB Revue Centre de documentation En réserve L003 Disponible Super-resolution land cover mapping with indicator geostatistics / A. Boucher in Remote sensing of environment, vol 104 n° 3 (15/10/2006)
[article]
Titre : Super-resolution land cover mapping with indicator geostatistics Type de document : Article/Communication Auteurs : A. Boucher, Auteur ; P.C. Kyriakidis, Auteur Année de publication : 2006 Article en page(s) : pp 264 - 282 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] carte d'occupation du sol
[Termes IGN] Chine
[Termes IGN] delta
[Termes IGN] fleuve
[Termes IGN] géostatistique
[Termes IGN] image Landsat-TM
[Termes IGN] incertitude de position
[Termes IGN] krigeage
[Termes IGN] problème inverse
[Termes IGN] variogrammeRésumé : (Auteur) Many satellite images have a coarser spatial resolution than the extent of land cover patterns on the ground, leading to mixed pixels whose composite spectral response consists of responses from multiple land cover classes. Spectral unmixing procedures only determine the fractions of such classes within a coarse pixel without locating them in space. Super-resolution or sub-pixel mapping aims at providing a fine resolution map of class labels, one that displays realistic spatial structure (without artifact discontinuities) and reproduces the coarse resolution fractions. In this paper, existing approaches for super-resolution mapping are placed within an inverse problem framework, and a geostatistical method is proposed for generating alternative synthetic land cover maps at the fine (target) spatial resolution; these super-resolution realizations are consistent with all the information available. More precisely, indicator coKriging is used to approximate the probability that a pixel at the fine spatial resolution belongs to a particular class, given the coarse resolution fractions and (if available) a sparse set of class labels at some informed fine pixels. Such Kriging-derived probabilities are used in sequential indicator simulation to generate synthetic maps of class labels at the fine resolution pixels. This non-iterative and fast simulation procedure yields alternative super-resolution land cover maps that reproduce: (i) the observed coarse fractions, (ii) the fine resolution class labels that might be available, and (iii) the prior structural information encapsulated in a set of indicator variogram models at the fine resolution. A case study is provided to illustrate the proposed methodology using Landsat TM data from SE China. Numéro de notice : A2006-415 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2006.04.020 En ligne : https://doi.org/10.1016/j.rse.2006.04.020 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28139
in Remote sensing of environment > vol 104 n° 3 (15/10/2006) . - pp 264 - 282[article]Suspended sediment concentrations in the Yangtze River estuary retrieved from the CMODIS data / Z. Han in International Journal of Remote Sensing IJRS, vol 27 n°18 - 19 - 20 (October 2006)
[article]
Titre : Suspended sediment concentrations in the Yangtze River estuary retrieved from the CMODIS data Type de document : Article/Communication Auteurs : Z. Han, Auteur ; Ya-Qiu Jin, Auteur ; C.X. Yun, Auteur Année de publication : 2006 Article en page(s) : pp 4329 - 4336 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] estuaire
[Termes IGN] Fleuve bleu (Chine)
[Termes IGN] image CMODIS
[Termes IGN] image spatiale
[Termes IGN] sédiment
[Termes IGN] Shanghai (Chine)
[Termes IGN] turbidité des eauxRésumé : (Auteur) The Chinese Moderate Resolution Imaging Spectroradiometer (CMODIS) was loaded on the China's SZ-3 spacecraft. Using an empirical line method, the CMODIS radiance is converted to the water-leaving reflectance, and is applied to inversion of the suspended sediment concentrations in the Yangtze River estuary. The concentrations ranging between 0 mg/L and 1000 mg/L are well validated by the field measurement data. This study demonstrates an example for the feasibility of the CMODIS data for concentration retrieval of the suspended sediment. Copyright Taylor & Francis Numéro de notice : A2006-464 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160600658164 En ligne : https://doi.org/10.1080/01431160600658164 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28188
in International Journal of Remote Sensing IJRS > vol 27 n°18 - 19 - 20 (October 2006) . - pp 4329 - 4336[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 080-06101 RAB Revue Centre de documentation En réserve L003 Disponible Remote sensing image-based analysis of the relationship between urban heat island and land use/cover changes / X.L. Chen in Remote sensing of environment, vol 104 n° 2 (30 September 2006)PermalinkResolution dependent errors in remote sensing of cultivated areas / M. Ozdogan in Remote sensing of environment, vol 103 n° 2 (30/07/2006)PermalinkUsing characteristic spectral bands of OMIS1 imaging spectrometer to retrieve urban land surface temperature / S.Y. Zhu in International Journal of Remote Sensing IJRS, vol 27 n°7-8 (April 2006)PermalinkAn ontology-based approach to personalized situation-aware mobile service supply / N. Weissenberg in Geoinformatica, vol 10 n° 1 (March - May 2006)PermalinkA new approach to the nearest-neighbour method to discover cluster features in overlaid spatial point processes / Tao Pei in International journal of geographical information science IJGIS, vol 20 n° 2 (february 2006)PermalinkGéodésie dans le Guangdong / Jean-Michaël Muller (2006)PermalinkDynamique urbaine et télédétection : le choix de l'indicateur végétal, les cas de Montréal, Paris et Pékin / I. Biraud-Burot in Photo interprétation, vol 41 n° 4 (Novembre 2005)PermalinkSteep-slope monitoring: GPS multi-antenne system at Xiaowan Dam / X. He in GPS world, vol 16 n° 11 (November 2005)PermalinkWavelet filter analysis of local atmospheric pressure effects on gravity variations / X.G. Hu in Journal of geodesy, vol 79 n° 8 (November 2005)PermalinkAn artificial-neural-network-based, constrained CA model for simulating urban growth / Q. Guan in Cartography and Geographic Information Science, vol 32 n° 4 (October 2005)Permalink