Abstract
Abstract. The research activity aims to evaluate the Mobile Laser Scanner mapping system's effectiveness and critical issues based on simultaneous localization and mapping (SLAM) called KAARTA Stencil. The research introduces a reflection on a series of test datasets resulting from the mobile system's application in an urban context taken as a case study and aimed at the representation and 3D modeling of architectural complexes.In detail, the metric accuracy of the proposed method was evaluated through a comparative analysis of the point cloud data through the evaluation of the surface deviation of the 3D point clouds based on the SLAM system and the data of static measurement systems, more precise to evaluate the accuracy of the proposed acquisition system. For each data were specified the possibilities of representation, the type of representation scale, and the possible manipulations and extractions of 2D profiles to design and analyze architectural elements through mobile systems.The analysis involves a breakdown of the problem of representation, identifying protocols that can be applicable at different levels and scales of reading aimed at the representation and discretization of parts and elements linked together in a hierarchical or interconnected relationship, outlining their criticality and potential.
Highlights
Research on the representation of architectural heritage through the construction of digital databases for is broadening its horizons and developing innovative tools and techniques for rapid acquisition
The experimentation divided by a set of analysis and data collection was aimed at analyzing the accuracy and type of information content that can be read on the point clouds of the KAARTA system, imagining the Mobile Terrestrial LiDAR System (MTLS) as possible autonomous detection solution or as a combined action through data integration by combining mobile technology with multisensor detection systems
They allow rapid acquisition actions for the documentation of the historical and cultural heritage at an urban scale, allowing to relate to different urban contexts, overcoming the difficulties related to reduced accessibility or an amplitude such that it cannot be covered in an adequate time by the 3D survey procedures consolidated over time through the use of terrestrial laser scanners (TLS)
Summary
Research on the representation of architectural heritage through the construction of digital databases for is broadening its horizons and developing innovative tools and techniques for rapid acquisition. The different instrumental possibilities available in the cultural heritage sector can constitute new tools for scientific investigation and visualization, taking into account the dimensions of reading the complexity and intelligibility within. Modern information databases use digital survey techniques to realize the knowledge base and the qualification and quantification of the spaces translated into the spatial coordinates of the point clouds. This 3D data is typically used for accurate documentation, digital preservation, visualization and analysis. The aim is to define low-cost procedures based on the concepts of traditional survey extended to the instrumental acquisition, reducing timing and offering the end-user a product "easy" to use, and guaranteeing a reliable result from a metric point of view (Apollonio et al, 2010)
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