3D Modeling for Digital Preservation of Romanian Heritage Monuments

Calin, Mariana; Damian, George; Popescu, Tiberiu; Manea, Raluca; Erghelegiu, Bogdan; Sălăgean, Tudor

doi:10.1016/j.aaspro.2015.08.111

Cited by 23 publications

(17 citation statements)

References 2 publications

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“…Once we can ensure archiving and access to the 3D data, the next step should be to evaluate the visibility and exhibition capability of the hosting site. Sullivan (2016) and Calin et al (2015) suggested a realtime viewer which can display a dynamic model and allows the researcher to rotate and shift their viewing position. also emphasised the human experience of meaning-making and suggested 3D model navigation (at pedestrian level) and real-time interaction are important tools for scholarly understanding.…”

Section: Repositoriesmentioning

confidence: 99%

Survey of 3D digital heritage repositories and platforms

Champion

Rahaman

2020

Virtual archaeol. rev.

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Despite the increasing number of three-dimensional (3D) model portals and online repositories catering for digital heritage scholars, students and interested members of the general public, there are very few recent academic publications that offer a critical analysis when reviewing the relative potential of these portals and online repositories. Solid reviews of the features and functions they offer are insufficient; there is also a lack of explanations as to how these assets and their related functionality can further the digital heritage (and virtual heritage) field, and help in the preservation, maintenance, and promotion of real-world 3D heritage sites and assets. What features do they offer? How could their feature list better cater for the needs of the GLAM (galleries, libraries, archives and museums) sector? This article’s priority is to examine the useful features of 8 institutional and 11 commercial repositories designed specifically to host 3D digital models. The available features of their associated 3D viewers, where applicable, are also analysed, connecting recommendations for future-proofing with the need to address current gaps and weaknesses in the scholarly field of 3D digital heritage. Many projects do not address the requirements stipulated by charters, such as access, reusability, and preservation. The lack of preservation strategies and examples highlights the oxymoronic nature of virtual heritage (oxymoronic in the sense that the virtual heritage projects themselves are seldom preserved). To study these concerns, six criteria for gauging the usefulness of the 3D repositories to host 3D digital models and related digital assets are suggested. The authors also provide 13 features that would be useful additions for their 3D viewers.Highlights:<ul><li>A survey of relevant features from eight institutional and eleven commercial online 3D repositories in the scholarly fieldof 3D digital heritage.</li><li>Presents a critical review of their hosting services and 3D model viewer features.</li><li>Proposes six features to enhance services of 3D repositories to support the GLAM sector, heritage scholars andheritage communities.</li></ul>

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Section: Repositoriesmentioning

confidence: 99%

Survey of 3D digital heritage repositories and platforms

Champion

Rahaman

2020

Virtual archaeol. rev.

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“…The use of TLS for heritage documentation has become increasingly popular. Terrestrial laser scanners have been used for documenting large historic monuments or sites, such as the project on Forum of Pompeii (Balzani et al, 2004), Great Buddha projects (Ikeuchi et al, 2007), Romanian Heritage Monuments (Calin et al, 2015), and Nasif Historical House in Jeddah (Baik, 2017). Sánchez-Aparicio et al (2018) studied preservation of heritage sites by combining TLS data and radiometric.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Laser Scanning Positions in Buildings Exteriors: Heritage Building Application

Metawie

Marzouk

2020

Journal of Civil Engineering and Management

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Digital documentation for heritage buildings is one of the methods of preserving them as it provides a current record for the buildings. Digital records of heritage buildings can be used for future building rehabilitation, or be presented to the public to raise the awareness, increase tourism and decrease vandalism. This paper focuses on scanning object geometry factor to increase the quality of heritage’s façade point cloud. It optimizes the scanner locations and the scanner field of view to increase the point cloud quality and shorten the scanning time while guaranteeing a set of quality constraints for the point cloud. The quality constraints are based on the incidence angle between the scanned surface and the laser beam, and the max spacing between points. Three different multi-objective optimization algorithms are utilized: 1) genetic algorithm, 2) Jaya algorithm, and 3) particle swarm optimization to increase the quality. Optimization performance measures are adopted to compare the outputs of the optimization algorithms. A multi-criteria decision-making technique (Weighed sum model) is used to choose the optimum solution between the Pareto frontier solutions. Optimization algorithms minimize point cloud density and scanning time while assuring a required point spacing and max incidence angle by changing distance between laser scanner and scanned Facade, horizontal and vertical scan repetitions, and scanner different resolutions. The Jaya algorithm generates the most diversifiable optimal solutions and it is the fastest of the three algorithms considered. This research focuses on vertical building façade and future research will include the all types of Heritage façade. Omar Tosson Palace in Egypt is considered as a case study to demonstrate the use of the developed methodology and to illustrate its essential features.

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“…Therefore, all these approaches are unable to provide reliable data support for reconstruction and restoration, and it is not conducive to serve the purpose of accurate preservation and scientific research. With the development of digital technology, especially the emergence of the three-dimensional (3D) laser scanners (or LiDAR), digital preservation has become viable for the Ming and Qing official-style architectures [2][3][4]. Nevertheless, the unstructured and bulky 3D point clouds require intensive post processing.…”

Section: Introductionmentioning

confidence: 99%

A Method for 3D Reconstruction of the Ming and Qing Official-Style Roof Using a Decorative Components Template Library

Huo

Hou

Dong

et al. 2020

IJGI

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The ancient roof decorative components of the official-style architectures from the Ming and Qing dynasties in China hold both physical and symbolic significance. These roof structures are the essential objects in three-dimensional (3D) modeling of ancient architectures for traditional Chinese cultural preservation. Although ancient architectures can be surveyed by a 3D laser scanner, the complex geometry and diverse pattern of their roof decorative components make the 3D point cloud reconstruction challenging, or at some points, nearly impossible in a fully automated manner. In this paper, we propose a method to ensure that the 3D shape of each roof decorative component is accurately modeled. First, we establish a decorative components template library (or “template library” in short hereafter), which is the first of its kind for the roofs of Ming and Qing official-style architectures. The process of establishing the decorative components template library begins with a remote collection of survey data using a terrestrial laser scanner and digital camera. The next stage involves the design and construction of different 3D decorative components in the template library with reference to the manuscripts written in the Ming and Qing dynasties’ architectural pattern books. With the point cloud data collected on any Ming and Qing official-style architecture, we further propose a geo-registration mechanism to search for an optimal fitting of the decorative components from the template library on the collected point cloud automatically. Based on the experimental results, the accuracy of point cloud registration yields less than 0.02 m, which meets the accuracy of the 3D model at LoD 300 level. Time consumption is less than 5s and stable, for large volume computing capacity has good robustness. The proposed strategy provides a new way for the 3D modeling of large and clustered historical architectures, particularly with complex structures.

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3D Modeling for Digital Preservation of Romanian Heritage Monuments

Cited by 23 publications

References 2 publications

Survey of 3D digital heritage repositories and platforms

Survey of 3D digital heritage repositories and platforms

Optimizing Laser Scanning Positions in Buildings Exteriors: Heritage Building Application

A Method for 3D Reconstruction of the Ming and Qing Official-Style Roof Using a Decorative Components Template Library

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