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A geometric stochastic approach based on marked point processes for road mark detection from high resolution aerial images / Olivier Tournaire in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 6 (November - December 2009)
[article]
Titre : A geometric stochastic approach based on marked point processes for road mark detection from high resolution aerial images Type de document : Article/Communication Auteurs : Olivier Tournaire , Auteur ; Nicolas Paparoditis , Auteur Année de publication : 2009 Article en page(s) : 12 p. ; pp 621 - 631 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] base de données routières
[Termes IGN] chaîne de Markov
[Termes IGN] extraction du réseau routier
[Termes IGN] fonction de Green
[Termes IGN] image aérienne
[Termes IGN] méthode de Monte-Carlo
[Termes IGN] objet géographique linéaire
[Termes IGN] processus ponctuel marqué
[Termes IGN] programmation stochastique
[Termes IGN] réseau routier
[Termes IGN] signalisation routièreRésumé : (Auteur) Road detection has been a topic of great interest in the photogrammetric and remote sensing communities since the end of the 70s. Many approaches dealing with various sensor resolutions, the nature of the scene or the wished accuracy of the extracted objects have been presented. This topic remains challenging today as the need for accurate and up-to-date data is becoming more and more important. Based on this context, we will study in this paper the road network from a particular point of view, focusing on road marks, and in particular dashed lines. Indeed, they are very useful clues, for evidence of a road, but also for tasks of a higher level. For instance, they can be used to enhance quality and to improve road databases. It is also possible to delineate the different circulation lanes, their width and functionality (speed limit, special lanes for buses or bicycles...). In this paper, we propose a new robust and accurate top_down approach for dashed line detection based on stochastic geometry. Our approach is automatic in the sense that no intervention from a human operator is necessary to initialise the algorithm or to track errors during the process. The core of our approach relies on defining geometric, radiometric and relational models for dashed lines objects. The model also has to deal with the interactions between the different objects making up a line, meaning that it introduces external knowledge taken from specifications. Our strategy is based on a stochastic method, and in particular marked point processes. Our goal is to find the objects configuration minimising an energy function made-up of a data attachment term measuring the consistency of the image with respect to the objects and a regularising term managing the relationship between neighbouring objects. To sample the energy function, we use Green algorithm's; coupled with a simulated annealing to find its minimum. Results from aerial images at various resolutions are presented showing that our approach is relevant and accurate as it can handle the most frequent layouts of dashed lines. Some issues, for instance, such as the relative weighting of both terms of the energy are also discussed in the conclusion. Copyright 2009 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Numéro de notice : A2009-494 Affiliation des auteurs : IGN (1940-2011) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2009.05.005 En ligne : https://doi.org/10.1016/j.isprsjprs.2009.05.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30123
in ISPRS Journal of photogrammetry and remote sensing > vol 64 n° 6 (November - December 2009) . - 12 p. ; pp 621 - 631[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-09061 RAB Revue Centre de documentation En réserve L003 Disponible Introducing scale parameters for adjusting area objects in GIS based on least squares and variance component estimation / X. Tong in International journal of geographical information science IJGIS, vol 23 n°11-12 (november 2009)
[article]
Titre : Introducing scale parameters for adjusting area objects in GIS based on least squares and variance component estimation Type de document : Article/Communication Auteurs : X. Tong, Auteur ; Wei Shi, Auteur ; D. Liu, Auteur Année de publication : 2009 Article en page(s) : pp 1413 - 1432 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] cadastre numérique
[Termes IGN] cohérence des données
[Termes IGN] compensation par moindres carrés
[Termes IGN] coordonnées géographiques
[Termes IGN] erreur systématique
[Termes IGN] facteur d'échelle
[Termes IGN] interpolation par pondération de zones
[Termes IGN] numérisation du cadastre
[Termes IGN] objet géographique zonal
[Termes IGN] parcelle cadastrale
[Termes IGN] système d'information géographique
[Termes IGN] varianceRésumé : (Auteur) In this paper, a least-squares based cadastral parcel area adjustment in geographic information systems (GIS) is developed based on (1) both the areas and coordinates being treated as observations with errors; and (2) scale parameters being introduced to take the systematic effect into account in the process of cadastral map digitization. The area condition equation for cadastral parcel considerations of scale parameters and geometric constraints is first constructed. The effects of the scale error on area adjustment results are then derived, and statistical hypothesis testing is presented to determine the significance of the scale error. Afterwards, Helmert's variance component estimation based on least-squares adjustment using the condition equation with additional parameters is proposed to determine the weight between the coordinate and area measurements of the parcel. Practical tests are conducted to illustrate the implementation of the proposed methods. Four schemes for solving the inconsistencies between the registered areas and the digitized areas of the parcels are studied. The analysis of the results demonstrates that in the case of significant systematic errors in cadastral map digitization, the accuracies of the adjusted coordinates and areas are improved by introducing scale parameters to reduce the systematic error influence in the parcel area adjustment. Meanwhile, Helmert's variance component estimation method determines more accurate weights of the digitized coordinates and parcel areas, and the least-squares adjustment solves the inconsistencies between the registered areas and the digitized areas of the parcels. Numéro de notice : A2009-514 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802077826 En ligne : https://doi.org/10.1080/13658810802077826 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30143
in International journal of geographical information science IJGIS > vol 23 n°11-12 (november 2009) . - pp 1413 - 1432[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09071 RAB Revue Centre de documentation En réserve L003 Disponible 079-09072 RAB Revue Centre de documentation En réserve L003 Disponible Quality assessment of linear data / S. Seo in International journal of geographical information science IJGIS, vol 23 n°11-12 (november 2009)
[article]
Titre : Quality assessment of linear data Type de document : Article/Communication Auteurs : S. Seo, Auteur ; C. O'hara, Auteur Année de publication : 2009 Article en page(s) : pp 1503 - 1525 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] appariement géométrique
[Termes IGN] données localisées
[Termes IGN] objet géographique linéaire
[Termes IGN] précision des données
[Termes IGN] qualité des données
[Termes IGN] zone tamponRésumé : (Auteur) This paper presents methods to evaluate the geometric quality of spatial data. Firstly, a point-based method is presented, adapting conventional assessment methods whereby common points between datasets are compared. In our approach, initial matches are established automatically and refined further through interactive editing. Second, a line-based method which uses correspondences between line segments is proposed. Here, the geometry of line segments in vector is transformed into a set of rasterized values so that their combination at each pixel can restore their original vector geometry. Matching is performed on rasterized line segments and their matching lengths and displacements are measured. Experimental results show that the line-based approach proposed is efficient to evaluate the geometric quality of spatial data without requirements of topological relationships among line features. Copyright Taylor & Francis Numéro de notice : A2009-518 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802231456 En ligne : https://doi.org/10.1080/13658810802231456 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30147
in International journal of geographical information science IJGIS > vol 23 n°11-12 (november 2009) . - pp 1503 - 1525[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09071 RAB Revue Centre de documentation En réserve L003 Disponible 079-09072 RAB Revue Centre de documentation En réserve L003 Disponible vol 30 n° 20 - October 2009 - Accuracy 2008, [actes], spatial accuracy in remote sensing, Shangai, 25 - 27 June 2008 (Bulletin de International Journal of Remote Sensing IJRS) / Jingxiong ZhangExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-09121 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Land use monitoring by remote sensing in tropical forest areas in support of the Kyoto Protocol: the case of French Guiana / Nicolas Stach in International Journal of Remote Sensing IJRS, vol 30 n° 19 (October 2009)
[article]
Titre : Land use monitoring by remote sensing in tropical forest areas in support of the Kyoto Protocol: the case of French Guiana Type de document : Article/Communication Auteurs : Nicolas Stach , Auteur ; Anne Salvado , Auteur ; Marcel Petit, Auteur ; Jean-François Faure, Auteur ; Laurent Durieux, Auteur ; Christina Corbane, Auteur ; Pierre Joubert, Auteur ; Dominique Lasselin, Auteur ; Michel Deshayes, Auteur Année de publication : 2009 Conférence : ForestSat 2007, forests and remote sensing : methods and operational tools 05/11/2007 07/11/2007 Montpellier France OA Proceedings Article en page(s) : pp 5133 - 5149 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse diachronique
[Termes IGN] base de données d'occupation du sol
[Termes IGN] développement durable
[Termes IGN] forêt tropicale
[Termes IGN] Guyane (département français)
[Termes IGN] image Landsat-TM
[Termes IGN] image SPOT
[Termes IGN] inventaire forestier (techniques et méthodes)
[Termes IGN] inventaire forestier local
[Termes IGN] mosaïque d'images
[Termes IGN] occupation du sol
[Termes IGN] orthophotoplan numérique
[Termes IGN] surveillance écologique
[Termes IGN] surveillance forestière
[Termes IGN] utilisation du solRésumé : (Auteur) The new SPOT/Envisat direct receiving station (DRS) operating in Cayenne in the framework of the SEAS-Guyane project was used to produce a global cloudless SPOT mosaic over French Guiana for the year 2006. This mosaic was used to perform a land-use, land-use change and forestry (LULUCF) inventory in the framework of the Kyoto Protocol. Nearly 17 000 sample points were laid down on the SPOT mosaic with a stratified sampling design. The land use at each sample point was determined by visual interpretation of the corresponding SPOT image in 2006 and the Landsat - Thematic Mapper (TM) image from the Global Land Cover Facility (GLCF) in 1990. Statistics for the period 1990-2006 were computed and integrated in the first voluntary Kyoto inventory. Numéro de notice : A2009-379 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160903022969 Date de publication en ligne : 22/09/2009 En ligne : https://doi.org/10.1080/01431160903022969 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30009
in International Journal of Remote Sensing IJRS > vol 30 n° 19 (October 2009) . - pp 5133 - 5149[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-09111 RAB Revue Centre de documentation En réserve L003 Exclu du prêt A prototype feature system for feature retrieval using relationships / J. Choi in Cartography and Geographic Information Science, vol 36 n° 4 (October 2009)PermalinkEvaluating the effects of land-use development policies on ex-urban forest cover: an integrated agent-based GIS approach / D. Robinson in International journal of geographical information science IJGIS, vol 23 n°9-10 (september 2009)PermalinkPermalinkGéolocalisation en milieu urbain par appariement entre une collection d'images et un SIG 2D / N. 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