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Creation of inspirational Web Apps that demonstrate the functionalities offered by the ArcGIS API for JavaScript / Arthur Genet (2020) 

Public Titre : Creation of inspirational Web Apps that demonstrate the functionalities offered by the ArcGIS API for JavaScript Type de document : Mémoire Auteurs : Arthur Genet, Auteur Editeur : Champs-sur-Marne : Ecole nationale des sciences géographiques ENSG Année de publication : 2020 Importance : 35 p. Format : 21 x 30 cm Note générale : Bibliographie Rapport de projet pluridisciplinaire, cycle ING2 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] ArcGIS [Termes IGN] données localisées 3D [Termes IGN] GitHub [Termes IGN] interface de programmation [Termes IGN] Javascript (langage de script) [Termes IGN] Rotterdam (Pays-Bas) [Termes IGN] scène 3D [Termes IGN] web mapping Index. décimale : PROJET Mémoires : Rapports de projet - stage des ingénieurs de 2e année Résumé : (Auteur) Mon stage avait pour objectif de développer des applications web montrant aux clients d’Esri Nederland l’intérêt de l’API ArcGIS pour JavaScript. Il consistait à réaliser différentes applications web avec les données d’Esri Nederland présentant plusieurs fonctionnalités de l’API. Au cours du stage, j’ai aussi été amené à travailler sur une web app créée directement pour un client (C-Through HbR pour l’autorité du port de Rotterdam) et une pour un besoin spécifique de l’organisation (Verberg Webscene features). Note de contenu : Introduction 1. My organization 2. Work methods 3. Learning the api 4. Projects Conclusion Numéro de notice : 26384 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Mémoire de projet pluridisciplinaire Organisme de stage : ESRI Nederland Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95941

Documents numériques

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Automatic extraction of accurate 3D tie points for trajectory adjustment of mobile laser scanners using aerial imagery / Zille Hussnain in ISPRS Journal of photogrammetry and remote sensing, vol 154 (August 2019)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 154 (August 2019) . - pp 41 - 58 Titre : Automatic extraction of accurate 3D tie points for trajectory adjustment of mobile laser scanners using aerial imagery Type de document : Article/Communication Auteurs : Zille Hussnain, Auteur ; Sander J. Oude Elberink, Auteur ; M. George Vosselman, Auteur ; M. George Vosselman, Auteur Année de publication : 2019 Article en page(s) : pp 41 - 58 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] appariement de points [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] extraction automatique [Termes IGN] extraction de points [Termes IGN] image aérienne [Termes IGN] points homologues [Termes IGN] Rotterdam (Pays-Bas) [Termes IGN] semis de points [Termes IGN] télémètre laser terrestre [Termes IGN] télémétrie laser mobile Résumé : (Auteur) Poor GNSS measurements in urban areas caused by blocked GNSS signals and multi-path is a well-known problem, which leads to an inaccurate trajectory estimation of Mobile Laser Scanning (MLS) platforms. Consequently, the MLS point cloud contains positioning errors. This paper presents a new method for the automatic extraction of accurate 3D tie points for the trajectory adjustment of MLS platforms in GNSS denied or troubled areas. The new method relies on aerial imagery as a reliable external source of reference provided that accurate exterior orientation parameters are available. Accordingly, one of the main objectives is to register the mobile laser scanning point cloud with corresponding aerial images. The matches between aerial images are used to obtain 3D tie points by forward intersection. By also determining the corresponding locations in the point cloud we obtain a 3D-3D correspondence between the MLS point cloud and the aerial images. In the future, the obtained 3D-3D correspondences will be used for trajectory adjustment. Our automatic tie point extraction procedure is tested on two independent MLS point clouds. The point clouds were acquired by two different platforms in Rotterdam. The aerial imagery of the same area was acquired at a different time. We evaluated the matching results for both datasets and concluded that the new procedure reliably extracted the 3D tie points for 55% of the tiles of the size of 90 m from the first MLS dataset. In the second dataset, 60% of the tiles of size 74 m yielded reliable 3D tie points. It is not necessary to successfully register all tiles because the results of this work will be used for the trajectory adjustment and the IMU can reliably support the positioning for small intervals. Numéro de notice : A2019-263 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2019.05.010 Date de publication en ligne : 04/06/2019 En ligne : https://doi.org/10.1016/j.isprsjprs.2019.05.010 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93076 [article]

Exemplaires(3)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-2019081	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-2019083	DEP-RECP	Revue	LASTIG	Dépôt en unité	Exclu du prêt
081-2019082	DEP-RECF	Revue	Nancy	Dépôt en unité	Exclu du prêt

Historical Rotterdam: 3D city models / F. Steidler in Geoinformatics, vol 13 n° 6 (01/09/2010)

Public [article]  inGeoinformatics > vol 13 n° 6 (01/09/2010) . - pp 56 - 59 Titre : Historical Rotterdam: 3D city models Type de document : Article/Communication Auteurs : F. Steidler, Auteur ; J. Goos, Auteur Année de publication : 2010 Article en page(s) : pp 56 - 59 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] analyse diachronique [Termes IGN] histoire [Termes IGN] modèle 3D de l'espace urbain [Termes IGN] Rotterdam (Pays-Bas) [Termes IGN] visualisation 3D Résumé : (Auteur) Historical images taken in 1934, 1943 and 1954 were used to generated 3D city models. The idea behind this project was a comparison of the development of the city at the different epochs. The resulting 3D models will be used in two ways. Firstly, they will bring back memories and help collected stories, photographs and other materials related to Rotterdam during the Second World War. Secondly, they will be used in an online computer game to teach young inhabitants of Rotterdam about the city's history and the value of online information. Numéro de notice : A2010-347 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30541 [article]

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Estimating sea floor dynamics in the southern North Sea to improve bathymetric survey planning / L. Dorst (2009)  

Public Titre : Estimating sea floor dynamics in the southern North Sea to improve bathymetric survey planning Type de document : Thèse/HDR Auteurs : L. Dorst, Auteur Editeur : Delft : Netherlands Geodetic Commission NGC Année de publication : 2009 Collection : Netherlands Geodetic Commission Publications on Geodesy, ISSN 0165-1706 num. 69 Importance : 220 p. Format : 17 x 24 cm ISBN/ISSN/EAN : 978-90-6132-311-2 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bathymétrie [Termes IGN] bathymétrie [Termes IGN] covariance [Termes IGN] déformation de la croute terrestre [Termes IGN] fond marin [Termes IGN] géodynamique [Termes IGN] géostatistique [Termes IGN] interpolation [Termes IGN] krigeage [Termes IGN] marée océanique [Termes IGN] morphogenèse [Termes IGN] nivellement indirect [Termes IGN] Nord, mer du [Termes IGN] océanographie dynamique [Termes IGN] port [Termes IGN] relèvement [Termes IGN] Rotterdam (Pays-Bas) [Termes IGN] sable [Termes IGN] vague Index. décimale : 32.10 Bathymétrie Résumé : (Auteur) Safe nautical charts require a carefully designed bathymetric survey policy, especially in shallow sandy seas that potentially have dynamic sea floor patterns. Bathymetric resurveying at sea is a costly process with limited resources, though. A pattern on the sea floor known as tidal sand waves is clearly present in bathymetric surveys, endangering navigation in the Southern North Sea because of the potential dynamics of this pattern. An important factor in an efficient resurvey policy is the type and size of sea floor dynamics. The uncertainties of measurement and interpolation associated with the depth values enable the statistical processing of a time series of surveys, using deformation analysis. Currently, there is no procedure available that satisfies the Royal Netherlands Navy requirements. Therefore, a deformation analysis procedure is designed, implemented and tested in such a way that the procedure works on bathymetric data and satisfies the Royal Netherlands Navy requirements. Also, it is necessary to develop a procedure that translates the results into changes of the resurvey policy, taking into account their confidence intervals. To describe the sea floor statistically, we assume the sea floor to consist of a spatial trend function (or characterization) and a residual function (or dispersion). Such a description is called a representation. The covariances between positions are expressed in a covariance function, based on the residual function. The covariance function is used by Kriging, an interpolation procedure that propagates the variances and covariances of the data points to variances of the interpolated values. This approach is used widely for spatial analyses, like the interpolation of a bathymetric data set. The method that we propose uses Kriging to produce a time series of grids of depth values and their variances. Subsequently, it uses deformation analysis, a statistical procedure based on testing theory. Our application of deformation analysis is particularly aimed at the detection of dynamics in areas with tidal sand waves, resulting in parameter estimates for the sea floor dynamics, and their uncertainty. We apply the method to sea floor representations both with and without a sand wave pattern. A test scenario is set up, consisting of a survey of an existing area in the Southern North Sea, for which dynamics are simulated. The results show that the proposed method detects different types of sea floor dynamics well, leading to satisfactory estimates of the corresponding parameters. We show results for the anchorage area Maas West near the Port of Rotterdam, the Netherlands first. The area is divided into 18 sub-areas. The results show that a sand wave pattern is detected for most of the sub-areas, and a shore-ward migration is detected for a majority of them. The estimated migration rates of the sand waves are up to 7.5 m/yr, with a 95% confidence interval that depends on the regularity of the pattern. The results are in confirmation with previously observed migration rates for the Southern North Sea, and with an idealized process-based model. Thereafter, we analyze several other areas for which a time series of surveys is available in the bathymetric, archives of the Netherlands Hydrographic Service, to study the spatial variations in sea floor dynamics. We present results for several sand wave areas and a single flat area. In some of those areas, dredging takes place, to guarantee minimum depths. The results indicate sand wave migration in areas close to the coast, and bed level changes of the order of decimeters. The dominant wavelength of the sand waves varies. We compare our results to literature of the same sand wave areas, in which we find similar migration rates, and different wavelengths. By formulating four indicators, recommendations are made for the resurvey policy on the Belgian and Netherlands Continental Shelf. These indicators follow from the estimates for sea floor dynamics. We present a concept for the shallowest likely depth surface, on which we base two of the indicators. The other two indicators act as a warning: they quantify the potentially missed dynamics, which makes the procedure more robust in case of complicated morphology. We show clear differences in recommended resurvey frequency between the five analyzed regions. We conclude that the designed method is able to use a time series of bathy-metric surveys for the estimation of sea floor dynamics in a satisfactory way. Those dynamics may be present on the scale of the sea floor, it may be a local effect, or it may be due to a tidal sand wave pattern. Also, the results are successfully reduced to a set of four indicators, used to improve a resurvey policy. Based on these conclusions, we formulate recommendations on the extrapolation of the results in space and time, on potential adaptations to the designed procedure, and on implementation of the procedure. Note de contenu : Preface 1 Introduction 1.1 Nautical charting 1.2 Survey plan design 1.3 Detection of sea floor dynamics 1.4 Tidal sand waves 1.5 The uncertainty of depth measurements 1.6 Problem formulation 1.7 Research question and subquestions 1.8 Research strategy and outline 2 Bathymetric applications of Geostatistics 2.1 Introduction 2.2 Depth as a trend and its residuals 2.3 Covariance functions 2.4 Kriging 2.5 Conclusion 3 Estimating sea floor dynamics 3.1 Introduction 3.2 The method for the estimation of sea floor dynamics 3.3 Specification of a test scenario 3.4 Analysis results of a dynamic sea floor 3.5 Discussion 3.6 Conclusion 3.A Error characteristics 3.B Transformation of the sand wave parameters 3.C The application of statistical estimation and testing 4 The analysis of migrating tidal sand waves 4.1 Introduction 4.2 The application of deformation analysis 4.3 Results of the deformation analysis 4.4 Discussion of results 4.5 Conclusion 4.A Overview of used surveys 4.B Quantification of measurement errors 4.B.1 Covariance function of the error 4.B.2 Variances of the SEES surveys 4.B.3 Variances of the MBES survey 5 Spatial variations in sea floor dynamics 5.1 Introduction 5.2 Deformation analysis 5.3 The Selected Track region: little dynamics 5.4 The Noordhinder region: comparison with other methods 5.5 The region West of IJmuiden: sand wave migration 5.6 The region North of Terschelling: a flat sea floor 5.7 Discussion 5.8 Conclusion 5.A Overview of used surveys 6 Application to the resurvey policy 6.1 Introduction 6.2 Background: Hydrographic practice 6.3 Method: indicators of sea floor dynamics Numéro de notice : 15495 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère DOI : sans Accessibilité hors numérique : Non accessible via le SUDOC En ligne : https://www.ncgeo.nl/downloads/69Dorst.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62737

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
15495-01	32.10	Livre	Centre de documentation	Topographie	Disponible

Texture analysis and classification of ERS SAR images for map updating of urban areas in The Netherlands / R. Dekker in IEEE Transactions on geoscience and remote sensing, vol 41 n° 9 (September 2003)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 41 n° 9 (September 2003) . - pp 1950 - 1958 Titre : Texture analysis and classification of ERS SAR images for map updating of urban areas in The Netherlands Type de document : Article/Communication Auteurs : R. Dekker, Auteur Année de publication : 2003 Article en page(s) : pp 1950 - 1958 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] 1:250.000 [Termes IGN] analyse texturale [Termes IGN] cartographie urbaine [Termes IGN] classification [Termes IGN] histogramme [Termes IGN] image ERS-SAR [Termes IGN] image radar [Termes IGN] milieu urbain [Termes IGN] mise à jour cartographique [Termes IGN] Pays-Bas [Termes IGN] Rotterdam (Pays-Bas) [Termes IGN] variogramme Résumé : (Auteur) In single-band and single-polarized synthetic aperture radar (SAR) image classification, texture holds useful information. In a study to assess the map-updating capabilities of such sensors in urban areas, some modern texture measures were investigated. Among them were histogram measures, wavelet energy, fractal dimension, lacunarity, and semivariograms. The latter were chosen as an alternative for the well-known gray-level cooccurrence family of features. The area that was studied using a European Remote Sensing Satellite 1(ERS1) SAR image was the conurbation around Rotterdam and The Hague in The Netherlands. The area can be characterized as a well-planned dispersed urban area with residential areas, industry, greenhouses, pasture, arable land, and some forest. The digital map to be updated was a 1: 250 000 Vector Map (VMapl). The study was done on the basis of non-parametric separability measures and classification techniques because most texture distributions were not normal. The conclusion is that texture improves the classification accuracy. The measures that performed best were mean intensity (actually no texture), variance, weighted-rank fill ratio, and semivariogram, but the accuracies vary for different classes. Despite the improvement, the overall classification accuracy indicates that the land-cover information content of ERS1 leaves something to be desired. Numéro de notice : A2003-250 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.814628 En ligne : https://doi.org/10.1109/TGRS.2003.814628 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22545 [article]

Exemplaires(1)

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Selling the city / J. Oud in GIS Europe, vol 6 n° 6 (01/06/1997)

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Géographie universelle. Tome 2 Belgique, Pays-Bas, Luxembourg / Paul Vidal De La Blache (1927)

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