An ontological model for the reality-based 3D annotation of heritage building conservation state

Messaoudi, Tommy; Véron, Philippe; Halin, Gilles; Luca, Livio de

doi:10.1016/j.culher.2017.05.017

Cited by 89 publications

(69 citation statements)

References 16 publications

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“…Despite the possibility of performing different analysis through these high quality reality based models, they still remain anonymous models. Indeed, heavy 3D point cloud does not contribute important information from a semantic point of view, and in this sense, creating a dynamic ontological model could be considered as a good methodology to operate by a multidisciplinary critic analysis (Messaoudi et al, 2018). In fact, BIM platforms requires dynamic, simplified and lightweight models, because the real big data should be information inside every objects, and this possibility that allows us to know and learn about 3D models.…”

Section: Point Cloud Managementmentioning

confidence: 99%

From Reality to Parametric Models of Cultural Heritage Assets for Hbim

Diara

Rinaudo

2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. The ability of managing big amounts of metric information coming from a LiDAR survey and the ability to reproduce high quality 3D models from them are still vivid problems to solve. Is it possible to create detailed models, geometrically and metrically correct, without using a large amount (often redundant) of metric data, such as massive point clouds? Obviously yes, but there are several ways to create a fitting 3D model for a specific research. A good solution is given by NURBS based algorithms that ensure high details of modelling. However, NURBS models can't be used directly on BIM platforms, because they need to be parametrized. In this sense, a parametric model is based on real measurements but each object could be interpreted and approximated based on objective and subjective (critic) view and also based on LODs (levels of detail or development) concerning a particular analysis. This kind of modelling of Cultural Heritage assets, fundamental for HBIM creation, need to be correctly planned especially for classification and definition of its historical features connected to an informative system, because nowadays information and then the semantic dimension are a necessary key points towards documentation analysis. Established this brief introduction, this schematic work will focus on the analysis of FreeCAD open BIM software and Rhinoceros as NURBS 3D modeller for Cultural Heritage is concerned, and whether and how they could integrate their tools for the purpose of managing dynamic high detailed data for the creation of an HBIM platform.

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Section: Point Cloud Managementmentioning

confidence: 99%

From Reality to Parametric Models of Cultural Heritage Assets for Hbim

Diara

Rinaudo

2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…The use of three-dimensional (3D) coordinate data for multi-faceted analysis has recently increased in the conservation and management of cultural heritage sites [1][2][3][4][5][6]. In particular, the precise investigation and monitoring of cultural heritage sites in terms of preventive conservation has gained attention, and digital documentation processes have been recognized as an essential element in conservation, rather than the active repair of cultural heritage sites [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Digital Documentation of Cultural Heritage Site Based on the Convergence of Terrestrial Laser Scanning and Unmanned Aerial Vehicle Photogrammetry

Hong

2019

IJGI

140

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Three-dimensional digital technology is important in the maintenance and monitoring of cultural heritage sites. This study focuses on using a combination of terrestrial laser scanning and unmanned aerial vehicle (UAV) photogrammetry to establish a three-dimensional model and the associated digital documentation of the Magoksa Temple, Republic of Korea. Herein, terrestrial laser scanning and UAV photogrammetry was used to acquire the perpendicular geometry of the buildings and sites, where UAV photogrammetry yielded higher planar data acquisition rate in upper zones, such as the roof of a building, than terrestrial laser scanning. On comparing the two technologies’ accuracy based on their ground control points, laser scanning was observed to provide higher positional accuracy than photogrammetry. The overall discrepancy between the two technologies was found to be sufficient for the generation of convergent data. Thus, the terrestrial laser scanning and UAV photogrammetry data were aligned and merged post conversion into compatible extensions. A three-dimensional (3D) model, with planar and perpendicular geometries, based on the hybrid data-point cloud was developed. This study demonstrates the potential for using the integration of terrestrial laser scanning and UAV photogrammetry in 3D digital documentation and spatial analysis of cultural heritage sites.

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“…Annotating more interactive visual documents (such as 3D models) is a bit more complex. There are a number of different approaches, from the simple ones to the more complex: We can store just an id (simply a numerical identifier pointing to a list of classes or concepts defined in an archive); or some keywords [RASF07] or categories [CFG*15], maybe supported by domain ontologies or taxonomies [MVHDL18, BHL*06, Mur16]; or some unstructured text (this is the case of the CHER‐Ob system [SKA*16]). In some cases, the annotation structure simply follows a consolidated approach applied in paper documentation [ABC*18].…”

Section: Connecting and Encoding Contentmentioning

confidence: 99%

Effective Annotations Over 3D Models

Ponchio

Callieri

Dellepiane

et al. 2019

Computer Graphics Forum

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Annotation support in interactive systems is often considered a simple task by the CG community, since it entails the apparently easy selection of a region and its connection with some information. The reality appears more complex. The scope of this paper is two‐fold: first, to review the status of this domain, discussing and characterizing several approaches proposed in literature to manage annotations over geometric models; second, to present in detail an innovative solution proposed and assessed in the framework of Cultural Heritage (CH) applications, called ClippingVolumes. At the annotation definition stage ClippingVolumes uses 3D data to characterize the annotation region; subsequently, annotations are visualized by adopting a two‐pass rendering solution which uses stencil buffers, thus without introducing new geometric elements, changing the topology or duplicating geometry elements. It solves most of the issues that afflict the current state of the art, such as fragmentation, annotation transfer to multiple representations and multi‐resolution data encoding. The latter is a mandatory requirement to produce efficient web‐based systems. We implemented and we fully tested this approach in the framework of a complex system that supports the documentation of CH restoration projects.

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An ontological model for the reality-based 3D annotation of heritage building conservation state

Cited by 89 publications

References 16 publications

From Reality to Parametric Models of Cultural Heritage Assets for Hbim

From Reality to Parametric Models of Cultural Heritage Assets for Hbim

Three-Dimensional Digital Documentation of Cultural Heritage Site Based on the Convergence of Terrestrial Laser Scanning and Unmanned Aerial Vehicle Photogrammetry

Effective Annotations Over 3D Models

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