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Building-damage detection using pre- and post-seismic high-resolution satellite stereo imagery: A case study of the May 2008 Wenchuan earthquake / X. Tong in ISPRS Journal of photogrammetry and remote sensing, vol 68 (March 2012)
[article]
Titre : Building-damage detection using pre- and post-seismic high-resolution satellite stereo imagery: A case study of the May 2008 Wenchuan earthquake Type de document : Article/Communication Auteurs : X. Tong, Auteur ; Z. Hong, Auteur ; S. Liu, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 13 - 27 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse comparative
[Termes IGN] analyse diachronique
[Termes IGN] bati
[Termes IGN] détection de changement
[Termes IGN] dommage matériel
[Termes IGN] hauteur du bâti
[Termes IGN] image Ikonos
[Termes IGN] modèle numérique de surface
[Termes IGN] séisme
[Termes IGN] Setchouan (Chine)Résumé : (Auteur) To address the disadvantage of traditional methods providing only two-dimensional (2D) damage change of the collapsed buildings, this paper presents an approach for the detection of the buildings that have collapsed in an earthquake based on 3D geometric changes, particularly height change of the buildings, using pre- and post-seismic IKONOS stereo image pairs. One of the critical issues – the accuracy of the 3D ground point determination from high-resolution satellite imagery (HRSI) – is first addressed employing a bias-compensation model based on the rational function polynomial coefficient bundle adjustment. With the refined 3D ground coordinates, two ways of detecting the collapsed buildings are proposed: (1) detection of an individual collapsed building by comparing the height differences at the corner points of the building calculated from the pre- and post-seismic IKONOS stereo pairs and (2) determination of the region of collapsed buildings by calculating the difference between the pre- and post-seismic digital elevation models (DEMs) generated again from the pre- and post-seismic stereo images. At the same time, a pre-seismic DEM based on a topographical map is generated for detection comparison in the study. The experiment results for Dujiangyan using two IKONOS stereo pairs before and after the Wenchuan earthquake demonstrated the following. (1) Accuracy of better than 1.1 m in planimetry and 1.5 m in height can be achieved from the pre- and post-seismic IKONOS stereo image pairs using the affine bias compensation model. This accuracy guarantees the feasibility of detecting the 3D geometric changes of the earthquake-induced building collapses from pre- and post-seismic HRSI stereo images. (2) Using the refined 3D coordinates of the ground points computed from the pre- and post-seismic IKONOS stereo pairs, the status (i.e., totally collapsed, partially collapsed or not collapsed) and the number of collapsed storeys can be estimated for an individual building being assessed. (3) The region of collapsed buildings can be determined by differencing the pre- and post-seismic DEMs created from the pre- and post-seismic IKONOS stereo pairs. An overall accuracy of better than 90% is achieved for the detection of the collapsed buildings based on the difference DEM using the pixel- and object-based assessment methods. Numéro de notice : A2012-145 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2011.12.004 En ligne : https://doi.org/10.1016/j.isprsjprs.2011.12.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31592
in ISPRS Journal of photogrammetry and remote sensing > vol 68 (March 2012) . - pp 13 - 27[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2012021 SL Revue Centre de documentation Revues en salle Disponible Mathematical morphology-based generalization of complex 3D building models incorporating semantic relationships / J. Zhao in ISPRS Journal of photogrammetry and remote sensing, vol 68 (March 2012)
[article]
Titre : Mathematical morphology-based generalization of complex 3D building models incorporating semantic relationships Type de document : Article/Communication Auteurs : J. Zhao, Auteur ; Q. Zhu, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 95 - 111 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Chine
[Termes IGN] généralisation automatique de données
[Termes IGN] information sémantique
[Termes IGN] modèle numérique du bâti
[Termes IGN] modélisation 3D
[Termes IGN] morphologie mathématique
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] réseau sémantique
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) A complex 3D building model contains a detailed description of both its appearance and internal structure with authentic architectural components. Because of its high complexity and huge data volumes, using a less detailed representation for the distant visual application of such a model is preferable. However, most mesh simplification algorithms cannot preserve manmade features of such models, and the existing 3D generalization algorithms are mainly proposed for regular-shaped buildings. More importantly, neither method can consistently express geometry, topological relations, and semantics in multiple discrete Levels of Details (LoDs). This paper presents a novel mathematical morphology-based algorithm that generalizes the complex 3D building model in a unified manner using the following steps: (1) semantic relationships between components, which reflect structural connectivity in the building at a certain LoD, are defined and extracted; (2) semantically connected components are merged and trivial geometric features of the components are eliminated simultaneously, with semantics associated with components then updated according to the merging; and (3) post-process is carried out to further reduce the redundancy of facets. The semantic relationships extracted ensure the proper generalization of topological relations and semantics of building components, and mathematical morphological operations implemented in the algorithm are capable of handling closed two-manifold components of various shapes. Experiments on both complex 3D building models in the classical Chinese style and prismatic 3D city models prove the effectiveness of the proposed method. Numéro de notice : A2012-148 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.01.002 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.01.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31595
in ISPRS Journal of photogrammetry and remote sensing > vol 68 (March 2012) . - pp 95 - 111[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2012021 SL Revue Centre de documentation Revues en salle Disponible Comprehensive GNSS solutions for international customers / M. Wang in GIM international, vol 26 n° 1 (January 2012)
[article]
Titre : Comprehensive GNSS solutions for international customers Type de document : Article/Communication Auteurs : M. Wang, Auteur Année de publication : 2012 Article en page(s) : pp 32 - 35 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] Chine
[Termes IGN] données GNSS
[Termes IGN] fournisseur
[Termes IGN] marché de l'information géographique
[Termes IGN] plateforme logicielle
[Termes IGN] système d'information géographiqueRésumé : (Auteur) Founded on may 2001, KQ Geo Technologies CO., Ltd. is one of the few A-level surveying and mapping service providers qualified by the State Bureau of surveying and mapping in China. With over 800 employees and 25 regional offices throughout China, KQ has become one of the leading suppliers of GIS platforms, GNSS technologies and equipment, spatial data services, and GPS technologies. Numéro de notice : A2012-008 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31456
in GIM international > vol 26 n° 1 (January 2012) . - pp 32 - 35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 061-2012011 SL Revue Centre de documentation Revues en salle Disponible 3D-sutra-interactive analysis tool for a Web atlas of scanned sutra inscriptions in China / N. Schmidt in Photogrammetric record, vol 26 n° 136 (December 2011 - February 2012)
[article]
Titre : 3D-sutra-interactive analysis tool for a Web atlas of scanned sutra inscriptions in China Type de document : Article/Communication Auteurs : N. Schmidt, Auteur ; R. Schütze, Auteur ; F. Boochs, Auteur Année de publication : 2011 Article en page(s) : pp 488 - 505 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] atlas numérique
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] patrimoine culturel
[Termes IGN] programme interactif
[Termes IGN] reconstruction 3D
[Termes IGN] Setchouan (Chine)
[Termes IGN] site web
[Termes IGN] télémétrie laser terrestreRésumé : (Auteur) Buddhist stone inscriptions of the 8th to 12th centuries ad are important cultural assets of China that need to be documented, analysed and interpreted archaeologically, art-historically and linguistically. On the one hand, such Buddhist stone inscriptions have to be conserved for future generations, but on the other hand, further possibilities for analysing the data could be achieved if the inscriptions were made accessible to a wider community, for instance, for understanding of the historical growth of Buddhism in China. In this paper, innovative techniques for the documentation of stone inscriptions located in the province of Sichuan, in the south-west of China, are demonstrated. The tasks to be performed include capturing the stone inscriptions by using high precision measuring techniques to generate copies of the original inscriptions, together with processing of the data enabling improvement in the legibility of characters and thus aiding the interpretation of the inscriptions. The concept and features of image processing as applied to the captured inscriptions are outlined. In order to present the outcome to as many people as possible and to allow individual interpretations of the results of the stone inscription reconstruction, their current interpretation and additional 2D/3D maps are published within an interactive web platform. Numéro de notice : A2011-498 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2011.00660.x En ligne : http://dx.doi.org/10.1111/j.1477-9730.2011.00660.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31392
in Photogrammetric record > vol 26 n° 136 (December 2011 - February 2012) . - pp 488 - 505[article]Taiwanese Lidar project / J. Liu in GIM international, vol 25 n° 8 (August 2011)
[article]
Titre : Taiwanese Lidar project Type de document : Article/Communication Auteurs : J. Liu, Auteur ; L. Fei, Auteur Année de publication : 2011 Article en page(s) : pp 23 - 25 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] données lidar
[Termes IGN] grande échelle
[Termes IGN] image aérienne
[Termes IGN] orthophotoplan numérique
[Termes IGN] risque naturel
[Termes IGN] Taïwan
[Termes IGN] télémétrie laser aéroportéRésumé : (Auteur) Nearly three-quarters of the territory of Taiwan and 95% of its population are exposed to frequent hazard. In the aftermath of typhoon Morakot that scourged Southern Taiwan on 8th and 9th august 2009, causing the worst flooding in a century, the authorities realized that the country was dreadfully lacking in detailed, accurate and current elevation data, as well as aerial imagery covering the entire territory (36 000 km2). In response, a national mapping program spanning 2010 to 2015 was launched with the aim of simultaneously capturing the entire country airborne Lidar and digital imagery. The authors discuss specifications, status and challenges posed by this large-scale, long-term project. Numéro de notice : A2011-335 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31114
in GIM international > vol 25 n° 8 (August 2011) . - pp 23 - 25[article]A multispectral and multiscale morphological index for automatic building extraction from multispectral GeoEye-1 imagery / X. Huang in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 7 (July 2011)PermalinkEngineering surveying for the construction of railway tunnels in Hong Kong / S. Lam in Geomatica, vol 65 n° 2 (June 2011)PermalinkPrecise orthoimage generation of Dunhuang wall painting / Y. Zhang in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 6 (June 2011)PermalinkPoint-cloud preservation plans / L. Teng in GIM international, vol 25 n° 5 (May 2011)PermalinkICESat GLAS data for urban environment monitoring / P. Gong in IEEE Transactions on geoscience and remote sensing, vol 49 n° 3 (March 2011)PermalinkConstruction of digital 3D highway model using stereo IKONOS satellite imagery / Ahmed Shaker in Geocarto international, vol 26 n° 1 (February 2011)PermalinkAdjustment computation of HASM : a high-accuracy and high speed method / T. Yue in International journal of geographical information science IJGIS, vol 24 n°11-12 (december 2010)PermalinkWater quality and polluant monitoring / S. Liu in GEO: Geoconnexion international, vol 9 n° 9 (october 2010)PermalinkIonospheric response to the geomagnetic storm on august 21, 2003 over China using GNSS-based tomographic technique / D. Wen in IEEE Transactions on geoscience and remote sensing, vol 48 n° 8 (August 2010)PermalinkContext-based mapping of damaged buildings from high-resolution optical satellite images / T. Vu in International Journal of Remote Sensing IJRS, vol 31 n° 13 (July /2010)Permalink