scholarly journals BAROQUE BANDED VAULTS: SURVEYING AND MODELING. THE CASE STUDY OF A NOBLE PALACE IN TURIN

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 871-878
Author(s):  
M. C. López González ◽  
R. Spallone ◽  
M. Vitali ◽  
F. Natta
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Point Clouds ◽  
Architectural Drawing ◽  
Three Dimensional Modeling ◽  
Use Of Data ◽  
Dimensional Modeling ◽  
Set Up ◽  
Definition Of

Abstract. This paper presents the methodological framework set up for the analysis, interpretation, and representation of the banded vaulted systems recognized in eleven Baroque atria in Turin. In these atria, the banded vaults, locally named “a fascie”, are featured by a series of arches orthogonal to the perimeter walls on which they rest. The arches divide the room’s ceiling into spaces that can accommodate small vaults of different shapes. The atria have been the subject of bibliographical, historical and documentary analyses, laser scanner metric survey, two-dimensional graphic representations, and interpretative hypotheses through three-dimensional modeling of the design’s geometries of the vaults.The integration between terrestrial laser scanning (TLS) technique, architectural drawing and three-dimensional modeling methods led to the definition of new workflows, aimed at optimizing the use of data. From these procedures new opportunities for the research arise, such as the comparison (metric and geometric) through the superimposition of design ideal models and point clouds.

scholarly journals THE VENETIAN <i>GALEA</i>: FROM THE WOODEN MODEL TO THE DIGITAL MODEL

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 1371-1379
Author(s):  
C. Balletti ◽  
F. Guerra ◽  
A. Lorenzon
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Point Clouds ◽  
Digital Model ◽  
History Museum ◽  
Three Dimensional Modeling ◽  
Documentary Sources ◽  
Dimensional Modeling ◽  
Large Audience ◽  
Set Up

Abstract. The Venetian galea (galley), dominating the Mediterranean Sea for almost 1000 years, is one of the most emblematic and fascinating objects in the history and culture of the Serenissima Republic of San Marco, the official name of ancient Venice. This boat has changed according to the needs and developments that have taken place over the centuries, proving versatile and powerful in military and commercial use.Unfortunately, no complete specimen has been received, and everything that can be known about galleys derives from paintings made in different eras, in models and in some original parts, kept inside the Naval Historical Museum of Venice.Another source are some manuscripts, where part of the traditional shipbuilding knowledge is handed down. To understand a galley it is necessary to understand which techniques were used by the proti (directors of the ancient shipyard) which differ substantially from the current design.These techniques were the synthesis of knowledge handed down from person to person and which did not make use of design drawings such as are used today. To obtain the reconstruction of a galley, lacking complete original drawings, we collected and analyzed different documentation that testified the ancient forms.The presented work aims to reconstruct a digital model of a galea starting from the photogrammetric and laser scanning survey of a wooden model of the hull of half of a 25-bench galley of the mid-seventeenth century. The surveyed maquette and brought back to the real scale was integrated by some artifacts present at the Naval History Museum of Venice, surveyed with photogrammetric techniques and laser scanning too.In this way a hypothetical configuration was reconstructed (by synthesis of collected and historical data) which shows the shape that this boat could reasonably have had. The result is a digital model, then printed to the scale, obtained by three-dimensional modeling starting from the point clouds of the maquette and the original artifacts. This final model has been compared with all the iconographic and documentary sources for its historical validation.The results obtained were used for a set-up aimed at enhancing the museum, because it was intended for a large audience.

Communication, Technology, and Digital Culture for the Conservation and Enhancement of the Architectural Heritage

2015 ◽  
pp. 446-475 ◽  
Author(s):  
Francesca Fatta
Keyword(s):  
Augmented Reality ◽  
Three Dimensional ◽  
Digital Culture ◽  
Architectural Heritage ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Communications Systems ◽  
Design Systems ◽  
Definition Of ◽  
The University

In this chapter the main issue is focused on the reconstruction of Reggio and Messina after the earthquake of 1908 has been an opportunity to address the broken and - what is much more difficult and required - the rebalancing of memory and identity of places. Between July 2013 and September 2014 two teams of researchers at the University of Reggio and the MAP CNRS Marseille have formed a partnership to test new communications systems, technology and digital culture applied to cultural and architectural heritage. The responsibilities of the MAP CNRS, directed by Prof. Livio De Luca and the field of investigation and experimentation defined by Atelier of thesis of Prof. Francesca Fatta, found an interaction system useful for the definition of design systems for a Museum of collective memory in Reggio Calabria. The digital experiments were compared with the taking of photogrammetric works recovered from the earthquake of 1908 in Reggio, three-dimensional modeling and integrated reading systems aimed at the restoration and augmented reality.

Study on laser scanning three-dimensional modeling of human head

2005 ◽  
Author(s):  
Tao Wang ◽  
Jianquan Yao ◽  
Ling Guo ◽  
Binjing Cai ◽  
Yang Lu ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Human Head ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling

Based on Three-Dimensional Modeling of Laser Scanning Technology in Antiquities

2012 ◽  
Vol 256-259 ◽  
pp. 2315-2319
Author(s):  
Wen Long Liu ◽  
Xiao Ping Zhao ◽  
Xiao Long Wang ◽  
Bao Guo Xu ◽  
De Tao Lv
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Texture Mapping ◽  
System Transformation ◽  
Cloud Data ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Real Size ◽  
Control Survey ◽  
Cloud Data Processing

This paper makes use of the three-dimensional laser scanning technology measurement speed and high precision which combines the advantage of the field control survey, coordinate system transformation, the point cloud data processing, establish the triangle nets, texture mapping etc process, get the space of ancient cultural relics data and texture, antiquities for 3D modeling provide real, real size, real texture digital model for reference.

Three Dimensional Modeling of Buildings Using Three Dimensional Laser Scanning Data

2012 ◽  
Vol 594-597 ◽  
pp. 2398-2401
Author(s):  
Dong Ling Ma ◽  
Jian Cui ◽  
Fei Cai
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
3D Visualization ◽  
Cloud Model ◽  
Three Dimensional ◽  
3D Models ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Feature Lines ◽  
Point Cloud Model

This paper provides a scheme to construct three dimensional (3D) model fast using laser scanning data. In the approach, firstly, laser point cloud are scanned from different scan positions and the point cloud coming from neighbor scan stations are spliced automatically to combine a uniform point cloud model, and then feature lines are extracted through the point cloud, and the framework of the building are extracted to generate 3D models. At last, a conclusion can be drawn that 3D visualization model can be generated quickly using 3D laser scanning technology. The experiment result shows that it will bring the application model and technical advantage which traditional mapping way can not have.

scholarly journals HBIM TO VR. SEMANTIC AWARENESS AND DATA ENRICHMENT INTEROPERABILITY FOR PARAMETRIC LIBRARIES OF HISTORICAL ARCHITECTURE

2018 ◽  
Vol XLII-2 ◽  
pp. 937-943 ◽  
Author(s):  
R. Quattrini ◽  
C. Battini ◽  
R. Mammoli
Keyword(s):  
Three Dimensional ◽  
Data Migration ◽  
Architectural Heritage ◽  
Data Enrichment ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Starting Point ◽  
Historical Architecture ◽  
Definition Of ◽  
Semantic Awareness

Recently we assist to an increasing availability of HBIM models rich in geometric and informative terms. Instead, there is still a lack of researches implementing dedicated libraries, based on parametric intelligence and semantically aware, related to the architectural heritage. Additional challenges became from their portability in non-desktop environment (such as VR). The research article demonstrates the validity of a workflow applied to the architectural heritage, which starting from the semantic modeling reaches the visualization in a virtual reality environment, passing through the necessary phases of export, data migration and management. The three-dimensional modeling of the classical Doric order takes place in the BIM work environment and is configured as a necessary starting point for the implementation of data, parametric intelligences and definition of ontologies that exclusively qualify the model. The study also enables an effective method for data migration from the BIM model to databases integrated into VR technologies for AH. Furthermore, the process intends to propose a methodology, applicable in a return path, suited to the achievement of an appropriate data enrichment of each model and to the possibility of interaction in VR environment with the model.

scholarly journals Three-dimensional Modeling of Carbon Fiber Cloth Surface from Dense and Scattered Points Cloud

2015 ◽  
Vol 9 (1) ◽  
pp. 152-157
Author(s):  
Cheng Jie ◽  
Chen Li
Keyword(s):  
Carbon Fiber ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Reconstruction Algorithm ◽  
Quality Analysis ◽  
Surface Model ◽  
Scanning System ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Fabric Surface

Fabric surface analysis, as part of fabric analysis, is very important for the textile manufacturing process and is traditionally based on human-labor or image processing which is a conventional automatic method. However, image quality is influenced by ambient light, background light and optical properties of the surface. In this paper, we present a three dimensional modeling techniques for the reconstruction of carbon-fiber fabric surface. Firstly, a dense and scattered points cloud is collected using 3D laser scanning system after necessary data quality analysis. Secondly, the original points cloud is preprocessed according to classification. Finally, three-dimensional fabric surface model is reconstructed using screened Poisson reconstruction algorithm. The experimental results show that the reconstructed model is acceptable.

scholarly journals Documentación sistémica del arte rupestre mediante el análisis espectral del escaneado 3D de las estaciones pintadas en Aragón, El caso concreto del abrigo de La Vacada (Castellote, Teruel) y el covacho del Plano del Pulido (Caspe, Zaragoza). España.

2010 ◽  
Vol 1 (1) ◽  
pp. 123
Author(s):  
María Sebastián López ◽  
Antonio Uriarte González ◽  
Jorge Angás Pajas ◽  
Manuel Martínez-Bea
Keyword(s):  
Systematic Study ◽  
Rock Art ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Variable Intensity ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Cave Paintings ◽  
Compositional Elements

<p>The work that follows is a sample of the tool of 3D laser scanner for the systematic study of rock art. Getting a three-dimensional modeling of the panels that are located in the cave paintings and analyzing variable intensity emitted by the scanner (green or red depending on instrument used). This analysis allows us pigment spots (cave paintings), with alterations of the panel. What allows us to obtain, as is the case, greater sharpness of the compositional elements that have the rock station and detecting non-visible figures at present due to deterioration. Assuming therefore a method of systemic documentation of rock art and promoting the recovery of lost art today.</p>

Fractal Dimensionalities

2018 ◽  
Vol 6 (3) ◽  
pp. 33-48 ◽  
Author(s):  
Л. Жихарев ◽  
L. Zhikharev
Keyword(s):  
Three Dimensional ◽  
Fractal Sets ◽  
Three Dimensional Modeling ◽  
3D Space ◽  
Wolfram Mathematica ◽  
Dimensional Modeling ◽  
Straight Line ◽  
Fractal Parameters ◽  
Definition Of

One of the most important characteristics of a fractal is its dimensionality. In general, there are several options for mathematical definition of this value, but usually under the object dimensionality is understood the degree of space filling by it. It is necessary to distinguish the dimensionality of space and the dimension of multitude. Segment, square and cube are objects with dimensionality 1, 2 and 3, which can be in respective spaces: on a straight line, plane or in a 3D space. Fractals can have a fractional dimensionality. By definition, proposed by Bernois Mandelbrot, this fractional dimensionality should be less than the fractal’s topological dimension. Abram Samoilovich Bezikovich (1891–1970) was the author of first mathematical conclusions based on Felix Hausdorff (1868–1942) arguments and allowing determine the fractional dimensionality of multitudes. Bezikovich – Hausdorff dimensionality is determined through the multitude covering by unity elements. In practice, it is more convenient to use Minkowsky dimensionality for determining the fractional dimensionalities of fractals. There are also numerical methods for Minkowsky dimensionality calculation. In this study various approaches for fractional dimensionality determining are tested, dimensionalities of new fractals are defined. A broader view on the concept of dimensionality is proposed, its dependence on fractal parameters and interpretation of fractal sets’ structure are determined. An attempt for generalization of experimental dependences and determination of general regularities for fractals structure influence on their dimensionality is realized. For visualization of three-dimensional geometrical constructions, and plain evidence of empirical hypotheses were used computer models developed in the software for three-dimensional modeling (COMPASS, Inventor and SolidWorks), calculations were carried out in mathematical packages such as Wolfram Mathematica.

The Influence of Bolt Layout Form to the Dynamic Stiffness of the Column

2014 ◽  
Vol 577 ◽  
pp. 222-227
Author(s):  
Chen Shen ◽  
Zhong Ping Hua ◽  
Meng Sha Zhang ◽  
Zhou Zhang
Keyword(s):  
Natural Frequency ◽  
Dynamic Stiffness ◽  
Three Dimensional ◽  
Element Analysis ◽  
Three Dimensional Modeling ◽  
Lower Natural Frequency ◽  
Dimensional Modeling ◽  
Modeling Software ◽  
Set Up ◽  
Bolt Arrangement

In the case of the column materials to determined, the lower natural frequency of column is determined by the number of coupling bolts and bolt arrangement. In this paper, by three-dimensional modeling software of Solidwork column model of hobbing is set up, then by using ANSYS finite element analysis software. The initial four order natural frequency to the different number of connection bolts and the different arrangement of bolt are respectively calculated. After the initial four order natural frequency are contrasted, we conclude that in the case of merely considering dynamic stiffness this study reach it is the most reasonable to select 8-12 bolts in the hobbing of YKQ31300, and different bolt arrangement of effects on the dynamic stiffness of the column is very small and can be ignored.

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