The essay shows the results of a research aimed at building a digital database of Sardinian milit... more The essay shows the results of a research aimed at building a digital database of Sardinian military architectures of Second World War. Following an activity of knowledge and cataloguing entrusted to digital survey methods already employed in other case studies, this contribute analyses the IIWW heritage placed in territory of Quartu Sant’Elena, a centre close to Cagliari in the south coast of the island. Many examples of these “sentinels” are positioned along the coastline and the country road and within the actual urban context; these architectures follow the indication of design models indicated by the archival documents using square and circle shape often modified and adapted to achieve a complete mimesis in the landscape that host them. In our case study we found bunkers that seems little churches, houses and water tanks located in a restricted area close to the Simbirizzi lake, in which an integrated (direct, instrumental, and photogrammetric) survey has been carried out.
The essay shows the results of a research aimed at building a digital database of Sardinian milit... more The essay shows the results of a research aimed at building a digital database of Sardinian military architectures of Second World War. Following an activity of knowledge and cataloguing entrusted to digital survey methods already employed in other case studies, this contribute analyses the IIWW heritage placed in territory of Quartu Sant’Elena, a centre close to Cagliari in the south coast of the island. Many examples of these “sentinels” are positioned along the coastline and the country road and within the actual urban context; these architectures follow the indication of design models indicated by the archival documents using square and circle shape often modified and adapted to achieve a complete mimesis in the landscape that host them. In our case study we found bunkers that seems little churches, houses and water tanks located in a restricted area close to the Simbirizzi lake, in which an integrated (direct, instrumental, and photogrammetric) survey has been carried out.
The paper presents the first results of an ongoing research on the benefits of implementing compu... more The paper presents the first results of an ongoing research on the benefits of implementing computational modeling in Scan-to-BIM processes for the representation of historic architecture in AR and VR application with education and communication purposes. The 3D laser scanner survey of a complex vaulted system was the starting point for the development of the research. The design of an App that optimizes the effectiveness of computational modeling concludes the workflow exporting the FBX file from Revit and then importing it directly onto the Unity real-time development platform. The study shows the feasibility of the computational approach in the application of AR and VR systems demonstrating its effectiveness thanks to the segmentation and hierarchization of the different components of the ribbed cross vault.
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
In the study of built heritage, the potential offered by the BIM methodology finds effective appl... more In the study of built heritage, the potential offered by the BIM methodology finds effective application in the knowledge and dissemination process. Today, the HBIM methodology often develops from 3D scanning point clouds with the so-called Scan-to-BIM processes. The complexity that often characterizes the architectural elements of the historical heritage and the lack of information on construction details and geometries, constitute a critical factor that sometimes affects the effectiveness of the application of the BIM methodology. Procedural methods define an approach that can help us when it is necessary to use external modelling tools for the local modelling of complex elements. Algorithmic modelling potentially could significantly reduce the investment normally required in digital content modelling operations, also in terms of time consuming. Furthermore, in procedural modelling, the definition of the detail can be calibrated a priori according to the objectives of the workflow. The research addresses the difficult management of point clouds in workflows aimed at the realization of the so-called serious games, tools that have proved invaluable in educational and teaching processes, as well as in the dissemination and promotion of heritage. Involving a remarkable variety of digital instruments for representation, serious games define a research topic in which the different needs related to the representation of the complexity of the objects can be investigated. Aimed at defining an effective development process for serious games, the paper proposes an HBIM workflow for reconstruction of 3D environments of historic buildings starting from laser scanning surveying approach.
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The essay shows some results of a research aimed at building a digital database of Sardinian mili... more The essay shows some results of a research aimed at building a digital database of Sardinian military architectures of Second World War. Following an activity of cataloguing entrusted to integrated digital survey methods already applied in other case studies of the region, this contribute analyses the built heritage placed in territory of Bosa, a centre located in the west coast of the island, in which 33 bunkers have been founded, most of them represented in the IGM military historical maps. These "modern sentinels", positioned along the coastline, the main roads and the railway leading to the actual urban context, are designed in reinforced concrete, also integrated with local stone, with a frequently use of square and circle shape often combined or modified and adapted to achieve a complete mimesis in the landscape that hosts them. The survey, applied at architecture and landscape scale, has produced a complete collection of data functional to realize an interoperable digital database, a necessary tool for a deepened knowledge and enhancement of a lost WWII heritage.
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Despite the high standard guaranteed by 3D scanning technology, image based modeling establishes ... more Despite the high standard guaranteed by 3D scanning technology, image based modeling establishes the most widely used technique for surface reconstruction, being a cheaper and more portable approach. The strong increase in the use of Unmanned Aerial Vehicles (UAVs), is increasingly affirming and consolidating over the years. Being more cheap and portable than the active sensors approach, the combination of photogrammetry and drones is widely used for different applications both for large scale mapping and for documentation of architecture and archaeological heritage. UAV based photogrammetry allows for rapid accurate mapping and three-dimensional modelling. Over the last two decades, the study of archaeological sites have benefited from the constant evolution of sensor-based surveying techniques, finding effective application for purely visualization purposes or for the extraction of metric data. The Punic-Roman temple "Sardus Pater Babai" in southern Sardinia (Italy), has been the subject of a massive anastylosis. The close-range photogrammetry technique, exploiting the images produced by a UAV consumer and the GNSS system data, has allowed the creation of metrically correct 2D and 3D models useful also for an effective visualization of the information. A series of orthoimages has been extracted in order to represent plan, elevations and cross-sections of the monument.
The essay shows the results of a research aimed at building a digital database of Sardinian milit... more The essay shows the results of a research aimed at building a digital database of Sardinian military architectures of Second World War. Following an activity of knowledge and cataloguing entrusted to digital survey methods already employed in other case studies, this contribute analyses the IIWW heritage placed in territory of Quartu Sant’Elena, a centre close to Cagliari in the south coast of the island. Many examples of these “sentinels” are positioned along the coastline and the country road and within the actual urban context; these architectures follow the indication of design models indicated by the archival documents using square and circle shape often modified and adapted to achieve a complete mimesis in the landscape that host them. In our case study we found bunkers that seems little churches, houses and water tanks located in a restricted area close to the Simbirizzi lake, in which an integrated (direct, instrumental, and photogrammetric) survey has been carried out.
The essay shows the results of a research aimed at building a digital database of Sardinian milit... more The essay shows the results of a research aimed at building a digital database of Sardinian military architectures of Second World War. Following an activity of knowledge and cataloguing entrusted to digital survey methods already employed in other case studies, this contribute analyses the IIWW heritage placed in territory of Quartu Sant’Elena, a centre close to Cagliari in the south coast of the island. Many examples of these “sentinels” are positioned along the coastline and the country road and within the actual urban context; these architectures follow the indication of design models indicated by the archival documents using square and circle shape often modified and adapted to achieve a complete mimesis in the landscape that host them. In our case study we found bunkers that seems little churches, houses and water tanks located in a restricted area close to the Simbirizzi lake, in which an integrated (direct, instrumental, and photogrammetric) survey has been carried out.
The paper presents the first results of an ongoing research on the benefits of implementing compu... more The paper presents the first results of an ongoing research on the benefits of implementing computational modeling in Scan-to-BIM processes for the representation of historic architecture in AR and VR application with education and communication purposes. The 3D laser scanner survey of a complex vaulted system was the starting point for the development of the research. The design of an App that optimizes the effectiveness of computational modeling concludes the workflow exporting the FBX file from Revit and then importing it directly onto the Unity real-time development platform. The study shows the feasibility of the computational approach in the application of AR and VR systems demonstrating its effectiveness thanks to the segmentation and hierarchization of the different components of the ribbed cross vault.
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
In the study of built heritage, the potential offered by the BIM methodology finds effective appl... more In the study of built heritage, the potential offered by the BIM methodology finds effective application in the knowledge and dissemination process. Today, the HBIM methodology often develops from 3D scanning point clouds with the so-called Scan-to-BIM processes. The complexity that often characterizes the architectural elements of the historical heritage and the lack of information on construction details and geometries, constitute a critical factor that sometimes affects the effectiveness of the application of the BIM methodology. Procedural methods define an approach that can help us when it is necessary to use external modelling tools for the local modelling of complex elements. Algorithmic modelling potentially could significantly reduce the investment normally required in digital content modelling operations, also in terms of time consuming. Furthermore, in procedural modelling, the definition of the detail can be calibrated a priori according to the objectives of the workflow. The research addresses the difficult management of point clouds in workflows aimed at the realization of the so-called serious games, tools that have proved invaluable in educational and teaching processes, as well as in the dissemination and promotion of heritage. Involving a remarkable variety of digital instruments for representation, serious games define a research topic in which the different needs related to the representation of the complexity of the objects can be investigated. Aimed at defining an effective development process for serious games, the paper proposes an HBIM workflow for reconstruction of 3D environments of historic buildings starting from laser scanning surveying approach.
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The essay shows some results of a research aimed at building a digital database of Sardinian mili... more The essay shows some results of a research aimed at building a digital database of Sardinian military architectures of Second World War. Following an activity of cataloguing entrusted to integrated digital survey methods already applied in other case studies of the region, this contribute analyses the built heritage placed in territory of Bosa, a centre located in the west coast of the island, in which 33 bunkers have been founded, most of them represented in the IGM military historical maps. These "modern sentinels", positioned along the coastline, the main roads and the railway leading to the actual urban context, are designed in reinforced concrete, also integrated with local stone, with a frequently use of square and circle shape often combined or modified and adapted to achieve a complete mimesis in the landscape that hosts them. The survey, applied at architecture and landscape scale, has produced a complete collection of data functional to realize an interoperable digital database, a necessary tool for a deepened knowledge and enhancement of a lost WWII heritage.
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Despite the high standard guaranteed by 3D scanning technology, image based modeling establishes ... more Despite the high standard guaranteed by 3D scanning technology, image based modeling establishes the most widely used technique for surface reconstruction, being a cheaper and more portable approach. The strong increase in the use of Unmanned Aerial Vehicles (UAVs), is increasingly affirming and consolidating over the years. Being more cheap and portable than the active sensors approach, the combination of photogrammetry and drones is widely used for different applications both for large scale mapping and for documentation of architecture and archaeological heritage. UAV based photogrammetry allows for rapid accurate mapping and three-dimensional modelling. Over the last two decades, the study of archaeological sites have benefited from the constant evolution of sensor-based surveying techniques, finding effective application for purely visualization purposes or for the extraction of metric data. The Punic-Roman temple "Sardus Pater Babai" in southern Sardinia (Italy), has been the subject of a massive anastylosis. The close-range photogrammetry technique, exploiting the images produced by a UAV consumer and the GNSS system data, has allowed the creation of metrically correct 2D and 3D models useful also for an effective visualization of the information. A series of orthoimages has been extracted in order to represent plan, elevations and cross-sections of the monument.
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