This paper presents the results of architectural surveys carried out with mobile mapping systems. The data acquired through different instruments for both indoor and outdoor surveying are analyzed and compared. The study sample shows what is required for an acquisition in a dynamic mode indicating the criteria for the creation of a georeferenced network for indoor spaces, as well as the operational processes concerning data capture, processing, and management. The differences between a dynamic and static scan have been evaluated, with a comparison being made with the aerial photogrammetric survey of the same sample.
Abstract. Continuous monitoring procedures are becoming even more crucial for assessing the potential deterioration of architectural structures, due to the many inducted advantages. A cultural heritage site, in fact, is constantly subject to degradation, due in particular to atmospheric agents. Preserving it with preventive analyses is an important goal for the scientific community. In this context, data collection methodologies, together with Artificial Intelligence, play a central role for the analysis of surface degradation. This study aims to present a proposal for the automated analysis of the state of degradation of an artefact, exploiting a novel solution including a combination of a graph database and a dynamic Digital Model. In this regard, a preliminary case study is presented, based on the Quadriportico of the Cathedral of San Matteo in Salerno, Italy.
ABSTRACT:The paper presents the first results of an interdisciplinary project related to the 3D documentation, dissemination, valorization and digital access of archeological sites. Beside the mere 3D documentation aim, the project has two goals: (i) to easily explore and share via web references and results of the interdisciplinary work, including the interpretative process and the final reconstruction of the remains; (ii) to promote and valorize archaeological areas using reality-based 3D data and Virtual Reality devices. This method has been verified on the ruins of the archeological site of Pausilypon, a maritime villa of Roman period (Naples, Italy). Using Unity3D, the virtual tour of the heritage site was integrated and enriched with the surveyed 3D data, text documents, CAAD reconstruction hypotheses, drawings, photos, etc. In this way, starting from the actual appearance of the ruins (panoramic images), passing through the 3D digital surveying models and several other historical information, the user is able to access virtual contents and reconstructed scenarios, all in a single virtual, interactive and immersive environment. These contents and scenarios allow to derive documentation and geometrical information, understand the site, perform analyses, see interpretative processes, communicate historical information and valorize the heritage location.
Digital documentation of cultural heritage is a very important issue that is receiving increasing attention from the scientific community. The availability of accurate 3D models of historical buildings is crucial to preserve our cultural heritage, because it allows us to reconstruct them in case of fortuitous collapse or intentional demolition or damage. In this paper, we present a new approach for the digital documentation of cultural heritage. Our approach is based on a hybridization of different techniques for data capture and processing and image analysis, with the aim of obtaining 3D models from images and the texturing of these models. In particular, we rely on convergent photogrammetry as way to acquire information about the real objects for generation of 3D models. We also apply computer vision and artificial intelligence techniques for further processing of all acquired data. As a result, we have developed a new way to obtain digital documentation of cultural heritage from data by using accurate reverse engineering techniques. Our methodology has been successfully applied to the digital documentation of a famous historical building in the city of Santander: the Royal Palace of Magdalena, the conference venue of this conference Cyberworlds' 2014
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