1,720,984 research outputs found
Computer Vision Meets Image Processing and UAS PhotoGrammetric Data Integration: From HBIM to the eXtended Reality Project of Arco della Pace in Milan and Its Decorative Complexity
Full text linkThis study aims to enrich the knowledge of the monument Arco della Pace in Milan, surveying and modelling the sculpture that crowns the upper part of the building. The statues and the decorative apparatus are recorded with the photogrammetric technique using both a terrestrial camera and an Unmanned Aerial Vehicle (UAV). Research results and performance are oriented to improve computer vision and image processing integration with Unmanned Aerial System (UAS) photogrammetric data to enhance interactivity and information sharing between user and digital heritage models. The vast number of images captured from terrestrial and aerial photogrammetry will also permit to use of the Historic Building Information Modelling (HBIM) model in an eXtended Reality (XR) project developed ad-hoc, allowing different types of users (professionals, non-expert users, virtual tourists, and students) and devices (mobile phones, tablets, PCs, VR headsets) to access details and information that are not visible from the ground
INTEGRATION OF 3D MODELS AND DIAGNOSTIC ANALYSES THROUGH A CONSERVATION-ORIENTED INFORMATION SYSTEM
Full text linkIn the recent years, mature technologies for producing high quality virtual 3D replicas of Cultural Heritage (CH) artefacts has grown thanks to the progress of Information Technologies (IT) tools. These methods are an efficient way to present digital models that can be used with several scopes: heritage managing, support to conservation, virtual restoration, reconstruction and colouring, art cataloguing and visual communication. The work presented is an emblematic case of study oriented to the preventive conservation through monitoring activities, using different acquisition methods and instruments. It was developed inside a project founded by Lombardy Region, Italy, called “Smart Culture”, which was aimed to realise a platform that gave the users the possibility to easily access to the CH artefacts, using as an example a very famous statue. The final product is a 3D reality-based model that contains a lot of information inside it, and that can be consulted through a common web browser. In the end, it was possible to define the general strategies oriented to the maintenance and the valorisation of CH artefacts, which, in this specific case, must consider the integration of different techniques and competencies, to obtain a complete, accurate and continuative monitoring of the statue
An example of syntactic and semantic ties among images, texts and maps
No full textThis study-experiment analyses the syntactic and semantic ties among images, texts and maps by using a blend of Geomatics and Linguistics techniques. Specifically, this work deals with the construction of a map on the basis of a written text representing a pictorial description of a panoramic mountain view. The aims are to demonstrate the aforementioned linkages and to measure the quality results in quantitative terms: the whole procedure is performed in seven steps (described in the introduction) and it closes with a final statistical evaluation. In order to achieve this task, a photograph was taken from the top of Mount San Giorgio, in Switzerland (Canton of Ticino), near Lake Lugano
EMERGENCY SURVEY OF REMOTE AND ENDANGERED ARCHAEOLOGICAL SITES
Full text linkThe paper describes the survey activities of the late Roman archaeological site of Umm al-Dabadib (Egypt). The interesting casestudy
can be taken as an example in case of emergency surveys, as this method allows the complete 3D acquisition of a vast and
complex area in a very short time and with the aid of simple instruments
TOWARDS THE ENHANCEMENT OF "MINOR" ARCHAEOLOGICAL HERITAGE
Full text linkThe research is an analysis of the recording, reconstruction and visualisation of the 3D data of a XVIII century watermill, identified in
an emergency archaeological excavation during the construction of the mini-hydroelectric plant on the bank of the Adda river in the
municipality of Pizzighettone (Cremona, Lombardy, Italy).
The work examines the use and the potentials of modern digital 3D modelling techniques applied to archaeological heritage aimed to
increase the research, maintenance and presentation with interactive products. The use of three-dimensional models managed through
AR (Augmented Reality) and VR (Virtual Reality) technologies with mobile devices gives several opportunities in the field of study
and communication. It also improves on-site exploration of the landscape, enhancing the “minor” archaeological sites, daily subjected
to numerous emergency works and facilitating the understanding of heritage sites
Sharing high-resolution models and information on web: The web module of bim3dsg system
Full text linkBIM3DSG system is described here. It is an ad hoc designed BIM system created for Cultural Heritage applications. It proposes some solutions to solve some issues related to the use of BIM in this field. First, it tries to resolve the problem of managing huge, complex, high resolution and heterogeneous 3D models, and then it offers a practical, easy and efficient solution for a wide sharing of data and information
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Un modello informativo parametrico per il Duomo di Milano. Test e Sperimentazioni.
No full textNowadays, with the spread of the BIM technology in the Cultural Heritage field, it is important to find, case by case, a method that permits to manage the archeological and architectural artifacts considering their personal needs.
In this case, the project focuses on a portion of the roofs of the Milan Cathedral, chosen for the complexity and richness in shapes of the components, which leads to difficult survey operations. The target was to experience complex methods of multi-sensor and multi-scale data acquisition and to build an infographic three-dimensional reality-based model in order to help and manage the conservation activities of the building. The complexity of the Cathedral’s late gothic style represents a hard challenge for the application of the innovative surveying methods and for modelling with a BIM-oriented software.
For this reason, the experiment was made with two different modelling methods (one is object-oriented modelling BIM and the other is based on the use of NURBS surfaces), in order to find the differences between the two, in terms of managing the survey data, modelling, the accuracy of the model, the time required to create it and the typology of data that they are able to visualize and insert.
The result of this work is an example of methodological approach that can enhance the widespread application of this innovative technology for restoration or maintenance activities of built heritage
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