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检索条件"任意字段=Conference on 3D Virtual Reconstruction and Visualization of Complex Architectures"

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SCAN-TO-BIM vs 3d IdEAL MOdEL HBIM: PARAMETRIC TOOLS TO STUdY dOMES GEOMETRY 8

SCAN-TO-BIM vs 3D IDEAL MODEL HBIM: PARAMETRIC TOOLS TO STUD...

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8th International Workshop on 3d virtual reconstruction and visualization of complex architectures (3d-ARCH)

作者： Capone, M. Lanzara, E. Univ Naples Federico II UNINA Naples Italy

The contribution is part of an interdisciplinary research that aims to address the problems of knowledge, interpretation and documentation of vulnerable structures such as the brick Renaissance domes in Campania (XV-XVI century). The goal is to analyze the relationship between Survey, Historic Building Information Modelling (HBIM) and 3d parametric models based on geometric rules from Treaties to study and to manage Cultural Heritage. HBIM is generally based on scan-to-BIM process that allows to generate 3d model from point cloud. The reverse modeling process, from a point cloud to parametric geometric model, poses a series of issues at the center of cultural debate that currently takes place around HBIM. The experimentation underway is part of this research field with the aim of using the parametric approach as a tool able to introduce an additional methodology for big data interpretation. Currently we can identify two different approaches for the construction of a HBIM system: building a simplified model by identifying the shape grammar or building the geometric components from survey without using pre-compiled objects libraries, following the scan to BIM logic. In our research we are going to identify an "hybrid" methodology. Generally the process is based on the knowledge and critical abilities of individual scholars, the idea is to increase the efficiency of the system through collaborative workflow forms that allow to optimize the processes through effective knowledge management actions. We are going to use procedural modeling techniques to generate HBIM domes library.

关键词： Procedural Modeling HBIM domes Parametric tools

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LYNX MOBILE MAPPER FOR SURVEYING CITY CENTERS ANd HIGHWAYS 4

LYNX MOBILE MAPPER FOR SURVEYING CITY CENTERS AND HIGHWAYS

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4th ISPRS International Workshop 3d-ARCH - 3d virtual reconstruction and visualization of complex architectures

作者： Conforti, d. Zampa, F. Optech Inc Vaughan ON Canada Sineco SpA Res & New Technol Dev Liguria Italy

In the last two years the Lynx Mobile Mapper has become the new lidar solution developed for surveying large areas that are impractical with static lidar sensors and require an accuracy and resolution that exceed airborne technologies. The system allows the scanning at a speed up to 100 km/h, obtaining accuracy better than 5 cm with an up to 7 mm resolution. Therefore, this solution proves to be an excellent tool for surveying city centers, highways, railways, thanks also to a very fast, safe and accurate data collection. This paper will present two applications: 1- The survey of the entire ancient city center of Brescia (Italy) with it medieval castle, the narrows streets and the main squares. It also has been run a test to survey with the Lynx the tunnel that go underneath the castle and compare the result with a static laser scanner survey, 2- The survey of the Calatrava Bridge on the A1 highway. The central bridge, which crosses over the high-speed rail line and the A1 motorway is composed as a single symmetrical arch, placed longitudinally, which rises to a height of 46m. during the survey the two A1 motorway carriageways have been scanned and the upper part of the bridge for a complete 3d model of this structure.

关键词： Laser Scanner LidAR Mobile Mapper Lynx

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INTEGRATION OF POINT CLOUdS dATASET FROM dIFFERENT SENSORS

INTEGRATION OF POINT CLOUDS DATASET FROM DIFFERENT SENSORS

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conference on 3d virtual reconstruction and visualization of complex architectures

作者： Abdullah, C. K. A. F. Che Ku Baharuddin, N. Z. S. Ariff, M. F. M. Majid, Z. Lau, C. L. Yusoff, A. R. Idris, K. M. Aspuri, A. Univ Teknol Malaysia Fac Geoinformat & Real Estate Dept Geoinformat Utm Skudai Malaysia

Laser Scanner technology become an option in the process of collecting data nowadays. It is composed of Airborne Laser Scanner (ALS) and Terrestrial Laser Scanner (TLS). ALS like Phoenix AL3-32 can provide accurate information from the viewpoint of rooftop while TLS as Leica C10 can provide complete data for building facade. However if both are integrated, it is able to produce more accurate data. The focus of this study is to integrate both types of data acquisition of ALS and TLS and determine the accuracy of the data obtained. The final results acquired will be used to generate models of three-dimensional (3d) buildings. The scope of this study is focusing on data acquisition of UTM Eco-home through laser scanning methods such as ALS which scanning on the roof and the TLS which scanning on building facade. Both device is used to ensure that no part of the building that are not scanned. In data integration process, both are registered by the selected points among the manmade features which are clearly visible in Cyclone 7.3 software. The accuracy of integrated data is determined based on the accuracy assessment which is carried out using man-made registration methods. The result of integration process can achieve below 0.04m. This integrated data then are used to generate a 3d model of UTM Eco-home building using SketchUp software. In conclusion, the combination of the data acquisition integration between ALS and TLS would produce the accurate integrated data and able to use for generate a 3d model of UTM eco-home. For visualization purposes, the 3d building model which generated is prepared in Level of detail 3 (LOd3) which recommended by City Geographic Mark-Up Language (CityGML).

关键词： laser scanners Airborne Laser Scanner (ALS) Terrestrial Laser Scanner (TLS) accuracy assessment three dimensional (3d) model

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The immersive time-machine: A virtual exploration of the history of Livorno 3

The immersive time-machine: A virtual exploration of the his...

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3rd ISPRS International Workshop on 3d virtual reconstruction and visualization of complex architectures, 3d-ARCH 2009

作者： Carrozzino, M. Evangelista, C. Bergamasco, M. PERCRO Scuola Superiore Sant'Anna Pisa Italy IMT Institute of Advanced Studies Lucca Italy

In this paper we present the results of a multimedia project dealing with the virtual reconstruction and the immersive visualization of the urban development of the town of Livorno, in the Italian region of Tuscany, on the 400th anniversary of its promotion to the rank of City. The project involved the realization of a 3d model of the town in ages, aiming to show its evolution and development in time. The results have been demonstrated in the context of a dedicated exhibition, making use of an immersive stereoscopic installation conceived for large audiences, hosted in the premises of Museo Fattori in Livorno.

关键词： Stereo image processing

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THE TOMB OF IPI: 3d dOCUMENTATION IN A MIddLE KINGdOM THEBAN NECROPOLIS (EGYPT, 2000 BCE) 8

THE TOMB OF IPI: 3D DOCUMENTATION IN A MIDDLE KINGDOM THEBAN...

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8th International Workshop on 3d virtual reconstruction and visualization of complex architectures (3d-ARCH)

作者： Echeverria, E. Celis, F. Morales, A. da Casa, F. Univ Alcala Dept Architecture Madrid 28801 Spain Univ Alcala Dept Hist & Philosophy Madrid 28801 Spain

due to the multiplicity of tombs in the area and the work of early archaeologists in deir el-Bahari, the necropolis resembles a Swiss cheese. In addition, most of these monuments and their remains (coffin fragments, human remains, subsidiary structures) were left unpublished. A century later, the major purpose of the Middle Kingdom Theban Project of University of Alcala (MKTP-UAH) -led by the moudir (i.e. "director" in Arabic) Antonio Morales-is to document, understand, and publish all these monuments and findings left behind by previous expeditions. Such publications will shed light not only on the necropolis and owners of the monuments, but will also help to understand the beginning of the so-called Middle Kingdom, a golden age of the pharaonic period with a significant and impressive architecture. In fact, most of archaeologists take these tombs as patterns for this golden age, without taking into consideration that we do not know much about them.

关键词： Egypt Thebes tombs Middle Kingdom underground surveying laser scanning

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4d reconstruction ANd visualization OF CULTURAL HERITAGE: ANALYZING OUR LEGACY THROUGH TIME

4D RECONSTRUCTION AND VISUALIZATION OF CULTURAL HERITAGE: AN...

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conference on 3d virtual reconstruction and visualization of complex architectures

作者： Rodriguez-Gonzalvez, Pablo Luis Munoz-Nieto, Angel del Pozo, Susana Sanchez-Aparicio, Luis Javier Gonzalez-Aguilera, diego Micoli, Laura Barsanti, Sara Gonizzi Guidi, Gabriele Mills, Jon Fieber, Karolina Haynes, Ian Hejmanowska, Beata Univ Salamanca High Sch Avila Dept Cartog & Land Engn Avila Spain Politecn Milan Dept Mech Engn Milan Italy Newcastle Univ Sch Civil Engn & Geosci Newcastle Upon Tyne Tyne & Wear England Newcastle Univ Sch Hist Class & Archaeol Newcastle Upon Tyne Tyne & Wear England Stanislaw Stasz Sci Assoc Krakow Poland

Temporal analyses and multi-temporal 3d reconstruction are fundamental for the preservation and maintenance of all forms of Cultural Heritage (CH) and are the basis for decisions related to interventions and promotion. Introducing the fourth dimension of time into three-dimensional geometric modelling of real data allows the creation of a multi-temporal representation of a site. In this way, scholars from various disciplines (surveyors, geologists, archaeologists, architects, philologists, etc.) are provided with a new set of tools and working methods to support the study of the evolution of heritage sites, both to develop hypotheses about the past and to model likely future developments. The capacity to "see" the dynamic evolution of CH assets across different spatial scales (e.g. building, site, city or territory) compressed in diachronic model, affords the possibility to better understand the present status of CH according to its history. However, there are numerous challenges in order to carry out 4d modelling and the requisite multi-data source integration. It is necessary to identify the specifications, needs and requirements of the CH community to understand the required levels of 4d model information. In this way, it is possible to determine the optimum material and technologies to be utilised at different CH scales, as well as the data management and visualization requirements. This manuscript aims to provide a comprehensive approach for CH time-varying representations, analysis and visualization across different working scales and environments: rural landscape, urban landscape and architectural scales. Within this aim, the different available metric data sources are systemized and evaluated in terms of their suitability.

关键词： 4d Modelling Cultural Heritage data Fusion Monitoring visualization

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Architectural historical heritage: a tridimensional multilayered cataloguing method 4

Architectural historical heritage: a tridimensional multilay...

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4th ISPRS International Workshop 3d-ARCH - 3d virtual reconstruction and visualization of complex architectures

作者： Calisi, daniele Tommasetti, Alessio Topputo, Rosa Univ Roma Tre I-00182 Rome Italy Univ Roma La Sapienza I-00181 Rome Italy

In the Future the digital filing system will be the method for storing and cataloguing heritages, private assets and arts collections. Today this elaborate process is confined only to the library, painting or parietal heritage. What is missing is a digitalized acquisition of the architectural heritage, which is described at multiple levels of representation. Taking a critical look at the urban setting until you reach the single buildings in their complexity, there is a clear need to establish an open and up-to-date system in order to communicate the different degrees of interaction with the architectural elements that must be preserved and accessed to like a work of art. The breakdown and cataloguing at tridimensional levels affects the different scales of the representation of the city at the stage of stimulating and interactive fruition for those users interested in historical and cognitive research and at the stage of active and project implementation well. The hierarchy of layers of data storage city based should be lived and experienced on a superficial stage as a simple user of the knowledge offered by the digital language of animation and interactivity. It may be the case of a tourist or a citizen who is eager to deepen his awareness of a building, a neighbourhood together with its layering of history and architectural value. This article proposes the development of a database that will be used and extended from time to time with new information related to surveys, projects and restorations of the existing.

关键词： database 3d Modeling digital Architecural Multilayered Archive Augmented Reality Image Based Modeling

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SURVEY ANd MOdELLING FOR THE BIM OF BASILICA OF SAN MARCO IN VENICE

SURVEY AND MODELLING FOR THE BIM OF BASILICA OF SAN MARCO IN...

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conference on 3d virtual reconstruction and visualization of complex architectures

作者： Fregonese, L. Taffurelli, L. Adami, A. Chiarini, S. Cremonesi, S. Helder, J. Spezzoni, A. Politecn Milan Dept ABC Mantova CampusPiazza Arco 3 Mantua Italy

The Basilica of San Marco is a singular case in the field of Cultural heritage, as it constitutes a construction site always active for the maintenance and preservation of the basilica itself. The continuous intervention of conservation, due to the particular environmental conditions of Venice and the opening to the public, together with the complexity of the building itself, imposes the need to identify an optimized management system. For this reason, in 2013 the Procurator of St. Marco Basilica commissioned the construction of a 3d model of the Basilica to be used for the creation of a BIM. The model must meet the required precision of the scale of 1:50, and should also include, in addition to the geometric description, a description of the mosaic and marble surfaces of the basilica through high resolution orthophoto which are essential for the restoration of the mosaics. The complexity of the church and the large and continuous flow of public led to work in non-optimal conditions especially for the acquisition stage. The basilica has certain peculiarities that led to some important choices, for example the use of photogrammetry instead of laser scanning technique. The same technique was preferred also by the need to realize, in addition to the geometric model, high-resolution orthophotos of marbles and mosaic surfaces. The modelling of the basilica has highlighted a number of problems related to the building features. The basilica, indeed, is the result of the juxtaposition of elements (capitals, columns) with different origin, which therefore cannot be standardized in special libraries. Moreover, especially in the extensive mosaic areas, there are not edges that characterize the architecture, but only beveled surfaces. This has resulted in a change also in the modeling paradigm with the need to identify alternative systems even for the construction of simple elements. Therefore, we decided to model using NURBS since it is the method that allows greater adherence

关键词： HBIM modelling Cultural Heritage complex architecture

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USING TERRESTRIAL LASER SCANNING ANd LIdAR dATA FOR PHOTO-REALISTIC VISUALISATION OF CLIMATE IMPACTS AT HERITAGE SITES 4

USING TERRESTRIAL LASER SCANNING AND LIDAR DATA FOR PHOTO-RE...

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4th ISPRS International Workshop 3d-ARCH - 3d virtual reconstruction and visualization of complex architectures

作者： Nettley, A. Anderson, K. deSilvey, C. Caseldine, C. Coll Life & Environm Sci Dept Geog Penryn Cornwall England

Remote sensing technologies such as terrestrial laser scanning (TLS) and light detection and ranging (LIdAR) can now provide accurate spatial data for describing topographic patterns in landscapes and mapping the fine geometric detail of complex structures. Interdisciplinary studies using such data for characterising heritage sites are now widespread, but it is less common for data derived from these technologies to be used in an operational setting to 'engage' local people with the idea of future change. Three-dimensional landscape models using TLS and LIdAR are a powerful way of communicating climate change to lay audiences on a local level and the use of multi-scale spatial data can help to show the anticipated impacts of climate change at heritage sites. The aim of this paper is to present the results of a project designed to produce a photorealistic geospatial model of the historic quayside at Cotehele Quay, Cornwall, UK. Our central aim was to generate a spatially accurate and visually realistic three-dimensional model of the site for use in local engagement strategies. TLS and LIdAR data were collected and processed to produce a three-dimensional model. The key image processing stages included: registration to a national co-ordinate system, meshing using 3d reshaper and visualisation creation in 3dS Max. The resulting model will permit spatial consideration of the impact of management strategies at the site. The over-arching application of this method beyond the study site will provide a platform for discussion that addresses the needs of site managers and the expectations of local communities.

关键词： terrestrial laser scanning heritage 3d visualisation photo-realism community sea-level rise climate change

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HBIM ANd THEMATIC MAPPING: PRELIMINARY RESULTS 9

HBIM AND THEMATIC MAPPING: PRELIMINARY RESULTS

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9th International Workshop on 3d-ARCH 3d virtual reconstruction and visualization of complex architectures

作者： delpozzo, d. Treccani, d. Appolonia, L. Adami, A. Scala, B. Politecn Milan Dept Architecture Built Environm & Construct Engn He Su Tech Grp MantovaLab I-46100 Mantua Italy RAVA Piazza Severino Caveri I-11100 Aosta Italy Univ Brescia DICATAM Via Branze 43 I-25123 Brescia Italy

Geomatics' interest in Building Information Modelling (BIM) processes applied to Cultural Heritage is evolving in many directions. The traditional fields of Geomatics -data acquisition and processing- have been largely dealt with about HBIM (Historical Building Information Modelling) systems, but there are still some issues that need to be explored in more detail. In addition to modelling, it is essential to consider the information content of the model, how it is generated, recorded and managed. If the objective of the HBIM model is the conservation project, it becomes essential to understand what types of data can be inserted in the model, how to record them and, above all, what their purpose is. The HBIM approach did not start out as a simple data repository, but as an information tool with the aim of helping the designer at all stages of the construction process. Moving to the field of preservation, much information about the building is represented by thematic maps. They allow to have a graphical image of the state of conservation of a facade or to understand the structural situation of a building. This research, tested on the Arch of Augustus in Aosta, starts from the big amount of data acquired by the RAVA Laboratory of the Superintendency of Aosta during a long period. These data allowed to test different approaches to thematic mapping, according to the specific themes to be represented (previous restoration interventions, diagnostics, decay mapping, etc). Anyway, this experiment also required a theoretical reasoning that preceded the operational phases. Faced with a new system, in fact, it is always advisable to reason about the method applied, to avoid the error of simply translating a method that could instead be developed in new directions. The question, to which this article wants only to begin answering, concerns the role of thematic mappings in the preservation design made by a HBIM approach, their necessity and their implementation towards a truly th

关键词： HBIM geometric modelling Cultural Heritage point cloud mapping

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