20.500.12556/DiRROS-21503 Turning a point cloud into a Building Information Model (BIM) defining and validating the accuracy requirements for existing buildings Digitization of existing buildings is one of the main future goals, leading to efficient planning, renovation and maintenance. Among the existing buildings, a significant share is protected as a cultural heritage and their management is supervised because interventions on the protected sites are limited. Building information modeling (BIM) provides the opportunity to integrate accurate as-built information into the digital environment where it can easily be accessed and used. A digital representation of building creation usually starts with the acquisition of spatial data (point cloud), which is then used to create a semantically enriched model with certain geometric accuracy (BIM). In order for the model to serve its purpose, it is important to define how accurate the model should be. Since there are currently insufficient definitions of geometric requirementsfor specific BIM use cases, the research hypothesis was that the quality of BIM greatly depends on the modeler. The identified issue was approached with a study case. Using the point cloud of the existing building, the BIM was made and validated based on pre-defined accuracy requirements. Different accuracy validation methods were used in the process. Based on the results of the study case, conclusions and recommendations for efficient BIM creation were prepared. digitalization of existing buildings point cloud building information model BIM geometric accuracy digitalizacija obstoječih stavb oblak točk informacijski model gradnje BIM geometrijska natančnost true false true Propylaeum Angleški jezik Slovenski jezik Copyright (c) 2025 Katja Žagar, Katja Malovrh, Laurens Oostwegel Neznano 2025-02-18 07:23:50 2025-02-18 07:29:10 2025-03-13 08:20:20 0000-00-00 00:00:00 2025 0 0 str. 325-334 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-01-09 624 2510-8182 224334595 https://ojs.chnt.at/index.php/proceedings/article/view/22/30 0 ecafc27a-edc0-11ef-9f1e-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30721 RAZ_Zagar_Katja_2025.pdf RAZ_Zagar_Katja_2025.pdf 1 75966012929CEA9C7AB028306699B3E9 d714188a640f93790592cbeb57e0824fc85e0830bc9d2de96d5bf381c1be7325 94935efe-edc1-11ef-9f1e-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30722 Zavod za gradbeništvo Slovenije 0 0 0