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Integration of laser scanner and photogrammetry for heritage BIM enhancement / Yahya Alshawabkeh in ISPRS International journal of geo-information, vol 10 n° 5 (May 2021)  

Public [article]  inISPRS International journal of geo-information > vol 10 n° 5 (May 2021) . - n° 316 Titre : Integration of laser scanner and photogrammetry for heritage BIM enhancement Type de document : Article/Communication Auteurs : Yahya Alshawabkeh, Auteur ; Ahmad Baik, Auteur ; Yehia Miky, Auteur Année de publication : 2021 Article en page(s) : n° 316 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] algorithme ICP [Termes IGN] Arabie Saoudite [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] données TLS (télémétrie) [Termes IGN] image captée par drone [Termes IGN] lasergrammétrie [Termes IGN] modélisation 3D du bâti BIM [Termes IGN] monument historique [Termes IGN] ombre [Termes IGN] reconstruction d'objet [Termes IGN] semis de points Résumé : (auteur) Digital 3D capture and reliable reproduction of architectural features is the first and most difficult step towards defining a heritage BIM. Three-dimensional digital survey technologies, such as TLS and photogrammetry, enable experts to scan buildings with a new level of detail. Challenges in the tracing of parametric objects in a TLS point cloud include the reconstruction of occluded parts, measurement of uncertainties relevant to surface reflectivity, and edge detection and location. In addition to image-based techniques being considered cost effective, highly flexible, and efficient in producing a high-quality 3D textured model, they also provide a better interpretation of surface linear characteristics. This article addresses an architecture survey workflow using photogrammetry and TLS to optimize a point cloud that is sufficient for a reliable HBIM. Fusion-based workflows were proposed during the recording of two heritage sites—the Matbouli House Museum in Historic Jeddah, a UNESCO World Heritage Site; and Asfan Castle. In the Matbouli House Museum building, which is rich with complex architectural features, multi-sensor recording was implemented at different resolutions and levels of detail. The TLS data were used to reconstruct the basic shape of the main structural elements, while the imagery’s superior radiometric data and accessibility were effectively used to enhance the TLS point clouds for improving the geometry, data interpretation, and parametric tracing of irregular objects in the facade. Furthermore, in the workflow that is considered to be the ragged terrain of the Castle of Asfan, here, the TLS point cloud was supplemented with UAV data in the upper building zones where the shadow data originated. Both datasets were registered using an ICP algorithm to scale the photogrammetric data and define their actual position in the construction system. The hybrid scans were imported and processed in the BIM environment. The building components were segmented and classified into regular and irregular surfaces, in order to perform detailed building information modeling of the architectural elements. The proposed workflows demonstrated an appropriate performance in terms of reliable and complete BIM mapping in the complex structures. Numéro de notice : A2021-511 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/ijgi10050316 Date de publication en ligne : 08/05/2021 En ligne : https://doi.org/10.3390/ijgi10050316 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97678 [article]

SEH-SDB : a semantically enriched historical spatial database for documentation and preservation of monumental heritage based on CityGML / Reda Yaagoubi in Applied geomatics, vol 11 n° 1 (March 2019)  

Public [article]  inApplied geomatics > vol 11 n° 1 (March 2019) . - pp 53 - 68 Titre : SEH-SDB : a semantically enriched historical spatial database for documentation and preservation of monumental heritage based on CityGML Type de document : Article/Communication Auteurs : Reda Yaagoubi, Auteur ; Abdulkader Al-Gilani, Auteur ; Ahmad Baik, Auteur ; Ebraheem Alhomodi, Auteur ; Yehia Miky, Auteur Année de publication : 2019 Article en page(s) : pp 53 - 68 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique [Termes IGN] Arabie Saoudite [Termes IGN] base de données localisées [Termes IGN] CityGML [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] enrichissement sémantique [Termes IGN] modélisation 3D du bâti BIM [Termes IGN] patrimoine immobilier [Termes IGN] préservation [Termes IGN] SIG 3D Résumé : (Auteur) Cultural heritage has a great and inestimable value for communities. Unfortunately, several historical monuments are under deteriorating conditions mainly due to the lack of knowledge about their historical importance. Hence, it is necessary to provide efficient solutions to preserve these monuments. An effective approach for the preservation of cultural heritage should address two main aspects: documentation and information. The first aspect is related to methods that are used to document and digitally archive historic buildings by using appropriate materials and techniques for acquiring 3D spatial data. The second aspect aims to inform the population and policy makers about the importance of the historical heritage in a simple, effective, and interactive manner. In this paper, we propose an original approach to design a semantically enriched historical spatial database (SEH-SDB) for documentation and information of monumental heritage. First of all, a LiDAR acquisition of the historical heritage should be undertaken to capture its current condition. Then, the SEH-SDB database will be designed according to four semantic packages related to historical buildings that are (1) Components package, (2) Material package, (3) Historical package, and (4) Social package. The component package is based on the CityGML standard, which ensures a high interoperability for 3D models. The material package represents the material used in the construction of the building (wood, stone …). The historical package informs about historical elements that characterize the building and its temporal evolution. The social package aims to inform about the main social activities that may take place in the historical building. Based on the SEH-SDB, a 3D historical GIS is developed to provide rich semantic information about historical sites. At the end of this paper, a case study of a historical monument named “Ribat Banajah” in Jeddah Historical City in Saudi Arabia is presented. A digital archiving of the current state of this building is performed by using terrestrial LiDAR in combination with other classical surveying techniques (traversing, leveling, and GPS). Then, a building information model of this building is created and exported to the 3D HGIS designed for the documentation of historical buildings. Numéro de notice : A2019-161 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s12518-018-0238-y Date de publication en ligne : 28/08/2018 En ligne : https://doi.org/10.1007/s12518-018-0238-y Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92522 [article]