Fusion of multimodal three-dimensional data for comprehensive digital documentation of cultural heritage sites

Heß, Michael Reinhard; Petrovic, Vid; Meyer, Dominique; Rissolo, Dominique; Kuester, Falko

doi:10.1109/digitalheritage.2015.7419578

Cited by 30 publications

(14 citation statements)

References 18 publications

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“…It was tested in a historical monument of Fujian Province, China. In [57], a combination of LIDAR, ground, and airborne imaging was applied to build virtual models of historically-relevant settlements in Quintana Roo, Mexico. Figueiredo et al [58] followed similar operational lines to carry out the reconstruction of the Milreu archeological site (Roman Vila located in Faro, Algarve, Portugal).…”

Section: Non-procedural Modeling Approachesmentioning

confidence: 99%

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

et al. 2019

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Virtual models’ production is of high pertinence in research and business fields such as architecture, archeology, or video games, whose requirements might range between expeditious virtual building generation for extensively populating computer-based synthesized environments and hypothesis testing through digital reconstructions. There are some known approaches to achieve the production/reconstruction of virtual models, namely digital settlements and buildings. Manual modeling requires highly-skilled manpower and a considerable amount of time to achieve the desired digital contents, in a process composed by many stages that are typically repeated over time. Both image-based and range scanning approaches are more suitable for digital preservation of well-conserved structures. However, they usually require trained human resources to prepare field operations and manipulate expensive equipment (e.g., 3D scanners) and advanced software tools (e.g., photogrammetric applications). To tackle the issues presented by previous approaches, a class of cost-effective, efficient, and scarce-data-tolerant techniques/methods, known as procedural modeling, has been developed aiming at the semi- or fully-automatic production of virtual environments composed of hollow buildings exclusively represented by outer façades or traversable buildings with interiors, either for expeditious generation or reconstruction. Despite the many achievements of the existing procedural modeling approaches, the production of virtual buildings with both interiors and exteriors composed by non-rectangular shapes (convex or concave n-gons) at the floor-plan level is still seldomly addressed. Therefore, a methodology (and respective system) capable of semi-automatically producing ontology-based traversable buildings composed of arbitrarily-shaped floor-plans has been proposed and continuously developed, and is under analysis in this paper, along with its contributions towards the accomplishment of other virtual reality (VR) and augmented reality (AR) projects/works oriented to digital applications for cultural heritage. Recent roof production-related enhancements resorting to the well-established straight skeleton approach are also addressed, as well as forthcoming challenges. The aim is to consolidate this procedural modeling methodology as a valuable computer graphics work and discuss its future directions.

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Section: Non-procedural Modeling Approachesmentioning

confidence: 99%

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

et al. 2019

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“…Furthermore, as damages to the wall were masked by layers of fresco, non-destructive evaluation techniques were also used to map existing damage conditions. 72 thermal images were taken using a FLIR A615 camera with a resolution of 640 ± 480 pixels, a thermal sensitivity of 0.05 • C, and an accuracy of ± 2 • C (Hess et al, 2015). A combination of the geometry captured using lineof-sight methods as well as thermal imaging was used to generate the 3D models for structural analysis.…”

Section: Documentation Of Geometry and Existing Conditionsmentioning

confidence: 99%

Understanding the Effects of Documentation Detail on Diagnostics Of Historic Structures

Napolitano

Heß

Glišić³

2019

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

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<p><strong>Abstract.</strong> Before reinforcements or new construction are added to historic structures, it is important to understand how the existing damage could have arisen. Often to do this, documentation methods such as laser scanning and photogrammetry are used to capture the existing conditions and physics-based models are used to simulate the response of a facsimile structure to various responses. Something that varies quite a bit though is the level of detail used to capture the existing conditions as well as the level of detail used to represent the structure during physics-based modelling. This paper aims to understand the effects of documentation detail on diagnostics of historic structures. To do this, two masonry structures were documented with laser scanners, photographs, and thermal images. For each case study, three-dimensional models of varying fidelity were generated based on the results of simulation. The response of these models to loading conditions was then calculated using a physics-based modelling technique called finite-distinct element modelling. The results for each case study are compared to understand the impacts of geometry on diagnostics; discussion about future tools to augment current practices is included.</p>

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“…They propose a methodology to produce sections of the site and to aid modelers with digitally reconstructing objects of interest based on limited observations. Hess et al [31] provided a similar workflow based on TLS data. Some researchers also provided test cases to evaluate the proposed deliverables.…”

Section: Background and Related Workmentioning

confidence: 99%

An Overview of Innovative Heritage Deliverables Based on Remote Sensing Techniques

et al. 2018

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The documentation and information representation of heritage sites is rapidly evolving. With the advancements in remote sensing technology, increasingly more heritage projects look to integrate innovative sensor data into their workflows. Along with it, more complex analyses have become available which require highly detailed inputs. However, there is a gap in the current body of knowledge of how to transfer the outputs from innovative data acquisition workflows to a set of useful deliverables that can be used for analysis. In addition, current procedures are often restricted by proprietary software or require field specific knowledge. As a result, more data are being generated in heritage projects but the tools to process them are lacking. In this work, we focus on methods that convert the raw information from the data acquisition to a set of realistic data representations of heritage objects. The goal is to present the industry with a series of practical solutions that integrate innovative technologies but still closely relate to the current heritage documentation workflows. An extensive literature study was performed discussing the different methods along with their advantages and opportunities. In the practical study, four deliverables were defined: the use of orthomosaics, web-based viewers, watertight mesh geometry and content for serious games. Each section is provided with a detailed overview of the process and realistic test cases that heritage experts can use as a basis for their own applications. The implementations are applicable to any project and provide the necessary information to update existing documentation workflows. Overall, the ideology is to increase the access to innovative technologies, better communicate the data to the different stakeholders and improve the overall usefulness of the information.

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Fusion of multimodal three-dimensional data for comprehensive digital documentation of cultural heritage sites

Cited by 30 publications

References 18 publications

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

Understanding the Effects of Documentation Detail on Diagnostics Of Historic Structures

An Overview of Innovative Heritage Deliverables Based on Remote Sensing Techniques

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