scholarly journals UAV PHOTOGRAMMETRY AND HBIM FOR THE VIRTUAL RECONSTRUCTION OF HERITAGE

Author(s):  
F. Carvajal-Ramírez ◽  
P. Martínez-Carridondo ◽  
L. Yero-Paneque ◽  
F. Agüera-Vega

<p><strong>Abstract.</strong> Three-dimensional (3D) models have become a great source of data for the conservation, reconstruction, and documentation of emblematic buildings of cultural heritage. In this study, photogrammetry based on <i>Unmanned Aerial Vehicles (UAVs)</i> was applied to perform a photogrammetric survey of a dilapidated cultural heritage building. On the basis of this survey and the historical information gathered from the building, its virtual reconstruction has been carried out using a <i>Historic Building Information Modeling (HBIM)</i>; applying realistic materials and textures in order to document it.</p>

Author(s):  
Fabrizio Banfi ◽  
Daniela Oreni

The latest developments in the field of generative modeling and building information modeling for heritage building (HBIM) have allowed the authors to increase the level of transmissibility of information through the most modern techniques of virtual and augmented reality (VR-AR). This chapter summarises the last years of applied research in the field of three-dimensional modeling oriented to digitise and correctly represent the built heritage thanks to the integration of the most modern three-dimensional survey techniques with a scan-to-BIM process based on new grades of generation (GOG) and accuracy (GOA). The new paradigm of the complexity of the built heritage, its tangible and intangible values, have been shared through new immersive ways able to increase the information contents and the knowledge accumulated in the last years of one of the most representative and unique buildings of the Lombard architecture: the Cà Granda in Milan.


2019 ◽  
Vol 4 (1) ◽  
pp. 8 ◽  
Author(s):  
José Neves ◽  
Zita Sampaio ◽  
Manuel Vilela

Building Information Modeling (BIM) is an Industry 4.0 methodology that is increasingly used in the domain of Architecture, Engineering, and Construction (AEC). BIM emerges as a new methodology, one that is more collaborative and based on parametric three-Dimensional (3D) models, centralizing different types of information of a geometric, physical, and economic nature. The purpose of this paper is to analyze the application of the BIM methodology to a rail track rehabilitation case study using a geotextile and geogrid in the ballast layer base. The creation of the 3D and 4D BIM models was performed using various BIM-based tools, which made it possible to achieve the spatial and parametric representation of the rail track and the simulation of the main construction tasks. A new BIM object pertaining to the rail track was created. This paper describes the procedures applied in achieving the BIM models, the limitations involved, and the interoperability between the BIM tools. Additionally, the potential for information extraction with respect to the infrastructure design, construction, and operation, e.g., planning and scheduling, quantities, graphic outputs, and track geometry quality, was demonstrated. It was concluded that the BIM methodology was viable and could be implemented with benefits, despite certain difficulties and limitations, which emphasize the need for further developments.


Author(s):  
J. Suziedelyte Visockiene ◽  
E. Tumeliene

<p><strong>Abstract.</strong> The implementation of Building Information Modelling (BIM) in each project, which is planned, have a design and construction stages. In the construction stage the objects are modelled by architects, engineers, and surveyors. Modelling process allowed to construct a BIM, which replaces two-dimensional (2D) building information into a three-dimensional (3D). Noticed that 3D BIM created by surveyors is not the same as 3D BIM, which is created by architects. Therefore, the purpose of this study is to identify the differences of the created 2D draftings made by 3D models between surveyors and architect’s. The surveyors make their model by using Unnamed Aerial Vehicle (UAV) system: Airborne Drone Data and Data photogrammetric processing technology. The 3D models accuracy is assessed by UAV images processing. The 3D information should be used to calculate façade geometry, volume, distances, contours, which are in the shadowed side of the house, and create 2D façade draftings. Traditionally, architects used 2D building’s façade draftings for pre-design in Construction Projects (CP). 3D architectural model is created by using structural 2D draftings created with Autodesk software. The architectural 3D model is more convenient for the general design and the visual view, it is easily to evaluate the impact of the changes that will be made. The 3D architectural model helps to finish a project at a low cost and also to evaluate the effect of the changes made. The 3D model from surveys measurements shows real view of an object (with deformations), meanwhile the 3D model from architects is a corrected image. Discrepancies between surveyors and architect’s 2D models made by 3D virtual reality (VR) are analysed in this article.</p>


Author(s):  
Esranur Kömürcü ◽  
◽  
Nuray Benli Yıldız

Cultural heritage conservation and restoration work is a complex process that includes documentation, data collection, interpretation and production. By integrating the BIM (Building Information Modeling) methodology into this process, the concept of HBIM (Historic Building Information Modeling) has been formed. In this article, the progress of this process with the HBIM methodology in the restoration, protection and management studies of cultural heritage buildings and sites requiring collective and holistic work, the evaluation of access to the information obtained, and the provision of interdisciplinary information exchange were analyzed. By using the SWOT analysis method, the opportunities and threats offered by using the HBIM working methodology were evaluated and the strengths and weaknesses of the HBIM technology were determined. As a result of the SWOT analysis, it has been determined that the HBIM application will positively contribute to the heritage structures and increase in the direction of potential opportunities by eliminating the weaknesses.


Author(s):  
E. Iadanza ◽  
F. Maietti ◽  
A. E. Ziri ◽  
R. Di Giulio ◽  
M. Medici ◽  
...  

<p><strong>Abstract.</strong> Within the EU funded project INCEPTION &amp;ndash; <i>Inclusive Cultural Heritage in Europe through 3D semantic modelling</i>, the key-targeted achievement is the development of a specific cloud based platform, in order to accomplish the main objectives of accessing, understanding and strengthening European Cultural Heritage by means of enriched 3D models. The whole INCEPTION project is based on the close connection between state-of-the-art architectural modeling technologies (BIM, Building Information Modeling) and the latest cutting-edge web technologies. The platform is grounded on semantic web technologies and makes extensive use of WebGL and RESTful APIs, in order to enrich heritage 3D models by using Semantic Web standards. The INCEPTION platform will be a space for interchange of information and for the dialogue among professionals, students, scholars, curators, non-expert users, etc. Furthermore, the Semantic Web structure interlinks the platform with external Cultural Heritage available linked data and makes it gradually enhanced by specific flexible data structures provided as project specific ontologies. The paper will describe solutions based on the match between BIM, Cloud and Semantic Web.</p>


2018 ◽  
Vol 9 (19) ◽  
pp. 1 ◽  
Author(s):  
Andrea Adami ◽  
Francesco Fassi ◽  
Luigi Fregonese ◽  
Mario Piana

<p>This article aims to critically examine the entire methodology of very large scale (1:1) surveying and documentation of mosaic surfaces. The term ‘survey’ should be read in its broadest and most complete and sense, including the phases of measurement and data processing as well as management and use of these data for the purposes of preservation and maintenance. The case study presented here took place at St Mark’s Basilica (<em>Basilica di San Marco</em>), in Venice, where mosaic flooring, wall and vault decorations have been surveyed on two separate occasions. These two experiences shared a common goal (a full-scale survey of the mosaic decorations) but differed in terms of the methodologies used, chiefly due to the technological developments of recent years. All this, therefore, lends itself to a methodological reflection and critique of the ways in which surveying technology has evolved over time. It enables to conduct surveys that would, just a few years ago, have been inconceivable due to their size and complexity. This article describes in detail current surveying processes, which includes the use of a multi-scale “image-based” approach, “re-topology” methods such as non-uniform rational B-spline (NURBS) and a tailor-made Building Information Modeling (BIM) system. This system allows the direct use of a three-dimensional (3D) model of the Basilica within the maintenance process of the monument itself with the options to georeferencing information, extract basic metric data and catalogue all its mosaics.</p><p><strong>Highlights:</strong></p><ul><li><p>Modern digital photogrammetric techniques enable the acquisition of very complex objects, not only in terms of form but also in terms of material.</p></li><li><p>To obtain high resolution orthophotos, it is necessary to accurately take care of all the stages of the process: photographic acquisition, surveying, modelling and orthographic reprojection.</p></li><li><p>High resolution images and detailed 3D models can benefit from a complex BIM system for the management of all data.</p></li></ul>


Author(s):  
Jean Doumit

Structure from motion (SFM) algorithms greatly facilitates the production of detailed 3D models from photographs we applied this technology for the purposes of Building Information Modeling (BIM) of a historic fortress in Lebanon. Aerial and terrestrial imagery processed in SFM-based software for exterior and interior 3D modeling of the fortress. In this paper, we applied new geospatial technologies, aerial and terrestrial photogrammetry for Historic Building Information Modeling HBIM database construction. The UAV used for aerial photogrammetry, a DJI Phantom 4 pro with a camera of 20 megapixels for building facades capturing and a DSLR camera for the terrestrial photogrammetry inside the fortress. Aerial and terrestrial images processed in Agisoft Photoscan for the construction of Toron fortress HBIM of a block Geographical Information System constituted from points cloud, Digital Surface Models (DSM) and Digital Ortho Models (DOM). HBIM is a novel prototype library of parametric objects, based on historic architectural and archeological data and a system for mapping parametric objects on to point clouds database. As a result, the production of Toron fortress HBIM database containing Geographical Information Systems (GIS) and Computer Aided Design (CAD) features and entities in the form of sections plans and 3D models for both the analysis and conservation of historic objects, structures, and environments.


2015 ◽  
Author(s):  
Demetrios Gatziolis ◽  
Jean F. Lienard ◽  
Andre Vogs ◽  
Nikolay Strigul

Detailed, precise, three-dimensional (3D) representations of individual trees are a prerequisite for an accurate assessment of tree competition, growth, and morphological plasticity. Until recently, our ability to measure the dimensionality, spatial arrangement, shape of trees, and shape of tree components with precision has been constrained by technological and logistical limitations and cost. Traditional methods of forest biometrics provide only partial measurements and are labor intensive. Active remote technologies such as LiDAR operated from airborne platforms provide only partial crown reconstructions. The use of terrestrial LiDAR is laborious, has portability limitations and high cost. In this work we capitalized on recent improvements in the capabilities and availability of small unmanned aerial vehicles (UAVs), light and inexpensive cameras, and developed an affordable method for obtaining precise and comprehensive 3D models of trees and small groups of trees. The method employs slow-moving UAVs that acquire images along predefined trajectories near and around targeted trees, and computer vision-based approaches that process the images to obtain detailed tree reconstructions. After we confirmed the potential of the methodology via simulation we evaluated several UAV platforms, strategies for image acquisition, and image processing algorithms. We present an original, step-by-step workflow which utilizes open source programs and original software. We anticipate that future development and applications of our method will improve our understanding of forest self-organization emerging from the competition among trees, and will lead to a refined generation of individual-tree-based forest models.


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