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18th International 3d GeoInfo Conference

作者： Boguslawski, Pawel Wroclaw Univ Environm & Life Sci Inst Geodesy & Geoinformat Grunwaldzka 53 PL-50357 Wroclaw Poland

ISBN: (纸本)9783031437014;9783031436994;9783031436987

Representations of an object in different granularity using the Level of detail concept are usually separated without links between corresponding components. Extension of a 3d model to the fourth dimension opens new possibilities for spatial analysis. Integration of scale using additional spatial dimension can help in scale-dependent analysis and preserving consistency, especially in case of model updates. In this paper, an extended version of the dual half-edge structure for topological representation of 4d cell complexes is proposed. This feasibility study shows implementation of the Poincare duality theorem in practice. Thanks to that, the data structure remains simple, where only two atomic elements are used in a construction process i.e. nodes and edges. This solution lays the groundwork for future research, where topological links in the fourth dimension will be used to connect consecutive object representations of different granularity.

关键词： 4d modelling data structures Topology Levels of detail

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Visual Planning and Scheduling of Industrial Projects With Spatial Factors

Visual Planning and Scheduling of Industrial Projects With S...

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20th ISPE International Conference on Concurrent Engineering

作者： Semenov, Vitaly Anichkin, Anton Morozov, Sergey Tarlapan, Oleg Zolotov, Vladislav Russian Acad Sci Inst Syst Programming 25 Alexander Solzhenitsyn St Moscow 109004 Russia

ISBN: (纸本)9781614993025;9781614993018

With the increasing complexity and scale of industrial projects the need of comprehensive and trustworthy methods for planning and scheduling becomes more and more apparent. Being implemented in recent project management systems, the traditional methods aid in project scheduling based on activity durations, precedence relationships, explicit timing constraints, and resource limits all assumed by Resource-Constrained Project Scheduling Problem (RCPSP). However, the methods have many shortcomings for the industrial projects where spatial factors play critically important role. The objective of this paper is to present an advanced Visual Scheduling Method (VSM) for solving Generally Constrained Project Scheduling Problem (GCPSP) that extends the classical RCPSP statement by taking into account additional spatial factors such as product element collisions, missing of supporting neighbouring elements, workspace congestion. In the paper we provide a holistic framework of the method as well as illustrate how feasible project schedules can be generated under complex spatio-temporal constraints in highly automatic and visually interpretable way. A software implementation of the method and its prospects for application in industrial practice are discussed too.

关键词： Planning and scheduling resource-constrained project scheduling problem 4d modelling spatio-temporal validation

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Spatial-temporal patterns of self-organization: A dynamic 4d model for redeveloping the post-zoning city

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ENVIRONMENT ANd PLANNING B-URBAN ANALYTICS ANd CITY SCIENCE 2022年第3期49卷 1005-1023页

作者： Levine, daphna Sussman, Shai Aharon-Gutman, Meirav Technion Israel Inst Technol Fac Architecture & Town Planning Technion Haifa Israel

Time is the main axis for understanding the functional, economic, and social aspects of self-organized redevelopment. When such processes are intensive and are conducted contemporaneously by large numbers of urban agents on different spatial and temporal scales and as a result of different motivations, urban planning is fragmented into multiple simultaneous and unexpected projects. The post-zoning era in urban planning stemmed from a recognition of this kind of complexity of urban dynamics and the need for a flexible planning system. Web-based geographic information systems (GIS) and planning support systems (PSS) are employed widely as digital tools to support planning practices. Still, the solutions tend to be isolated implementations that do not achieve sophisticated management of the complex temporal-spatial urban dynamics of self-organization. To this end, the article presents a useful set of multidimensional (2d, 3d, and 4d) planning tools that can be implemented by municipal planning departments to improve planning practices with relative ease. This toolbox facilitates the real-time updating of changes to individual buildings and allows all parties to see where delays are occurring, where they are impacting one another, and where environments of accelerated development are evolving in nearby urban plots. Identifying redevelopment clusters enables the formulation of an urban time-based planning policy. Using a spatial-temporal toolbox for planning, we argue, can facilitate recognition of the potential of self-organization as the leading form of contemporary urban planning.

关键词： Comprehensive planning self-organization urban redevelopment 4d modelling space-time GIS planning support system online participatory tools Israel

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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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CULTURAL HERITAGE THROUGH TIME: A CASE STUdY AT HAdRIAN'S WALL, UNITEd KINGdOM

CULTURAL HERITAGE THROUGH TIME: A CASE STUDY AT HADRIAN'S WA...

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Conference on 3d Virtual Reconstruction and Visualization of Complex Architectures

作者： Fieber, K. d. Mills, J. P. Peppa, M. V. Haynes, I. Turner, S. Turner, A. douglas, M. Bryan, P. G. Newcastle Univ Sch Civil Engn & Geosci Newcastle Upon Tyne NE1 7RU Tyne & Wear England Newcastle Univ Sch Hist Class & Archaeol Newcastle Upon Tyne NE1 7RU Tyne & Wear England English Heritage York N Yorkshire England Hist England York N Yorkshire England

diachronic studies are central to cultural heritage research for the investigation of change, from landscape to architectural scales. Temporal analyses and multi-temporal 3d reconstruction are fundamental for maintaining and safeguarding all forms of cultural heritage. Such studies form the basis for any kind of decision regarding intervention on cultural heritage, helping assess the risks and issues involved. This article introduces a European-wide project, entitled "Cultural Heritage Through Time", and the case study research carried out as a component of the project in the UK. The paper outlines the initial stages of the case study of landscape change at three locations on Hadrian's Wall, namely Beckfoot Roman Fort, Birdoswald Roman Fort and Corbridge Roman Station, all once part of the Roman Empire's north-west frontier. The main aim of the case study is to integrate heterogeneous information derived from a range of sources to help inform understanding of temporal aspects of landscape change. In particular, the study sites are at risk from natural hazards, notably erosion and flooding. The paper focuses on data collection and collation aspects, including an extensive archive search and field survey, as well as the methodology and preliminary data processing.

关键词： 4d modelling Cultural Heritage data Collection data Fusion Monitoring Visualization

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INTERdISCIPLINARY dATA FUSION FOR dIACHRONIC 3d RECONSTRUCTION OF HISTORIC SITES

INTERDISCIPLINARY DATA FUSION FOR DIACHRONIC 3D RECONSTRUCTI...

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Conference on 3d Virtual Reconstruction and Visualization of Complex Architectures

作者： Micoli, L. L. Barsanti, S. Gonizzi Guidi, G. Politecn Milan Dept Mech Engn Via La Masa 1 I-20156 Milan Italy

In recent decades, 3d reconstruction has progressively become a tool to show archaeological and architectural monuments in their current state, presumed past aspect and to predict their future evolution. The 3d representations trough time can be useful in order to study and preserve the memory of Cultural Heritage and to plan maintenance and promotion of the historical sites. This paper represent a case study, at architectonic and urbanistic scale, based on methodological approach for CH time-varying representations proposed by JPI-CH European Project called Cultural Heritage Through Time (CHT2). The work is focused on the area of Milan Roman circus, relatively to which was conducted both a thorough philological research based on several sources and a 3d survey campaign of still accessible remains, aiming at obtaining the monumental representation of the area in 3 different ages.

关键词： 3d reconstruction historical data knowledge representation critical analysis 4d modelling

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4d BIM for Environmental Planning and Management

4D BIM for Environmental Planning and Management

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International High-Performance Built Environment Conference (iHBE)

作者： Jupp, Julie Univ Technol Sydney 15 Broadway Ultimo 2007 Australia

ISBN: (纸本)9781510843325

For more than a decade research has shown that 4d Building Information modelling (BIM) can improve construction planning, scheduling and production control as well as the onsite management of safety, workspaces and waste. The increasing use of 4d BIM in construction highlights opportunities for utilising these capabilities in new digital management systems replete with role reorganization, new practices and workflows, and not solely as a tool for constructability analysis and onsite monitoring of construction progress. Continued focus on construction-based environmental impacts provides an impetus to leverage 4d BIM to improve communication and information flow throughout environmental planning and management tasks. This paper explores how environmental planning and management can be supported by 4d capabilities. 4d modelling and analysis technologies combined with structured workflows are presented as the basis for developing a tailored framework for environmental planning and management. Five functional prerequisites necessary to the collaborative development and onsite monitoring of environmental management systems are identified before laying out the directions for future research. (C) 2017 The Authors. Published by Elsevier Ltd.

关键词： 4d modelling Virtual Models Construction Environment Management Plans

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Surface Motion Capture Animation

Surface Motion Capture Animation

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作者： Adnane Boukhayma Universite Grenoble Alpes

学位级别：博士

As a new alternative to standard motion capture, 4d surface capture is motivated by the increasing demand from media production for highly realistic 3d content. Such data provides real full shape, appearance and kinematic information of the dynamic object of interest. We address in this work some of the tasks related to the acquisition and the exploitation of 4d data, as obtained through multi-view videos, with an emphasis on corpus of moving subjects. Some of these problems have already received a great deal of interest from the graphics and vision communities, but a number of challenges remain open in this respect. We address namely example based animation synthesis, appearance modelling, semantic motion transfer and variation synthesis. We first propose a method to generate animations using video-based mesh sequences of elementary movements of a shape. New motions that satisfy high-level user-specified constraints are built by recombining and interpolating the frames in the observed mesh sequences. Our method brings local improvement to the synthesis process through optimized interpolated transitions, and global improvement with an optimal organizing structure that we call the essential graph. We then address the problem of building efficient appearance repre- sentations of shapes observed from multiple viewpoints and in several movements. We propose a per subject representation that identifies the underlying manifold structure of the appearance information relative to a shape. The resulting representation encodes shape appearance variabilities due to viewpoint and illumination, with Eigen textures, and due to local inac- curacies in the geometric model, with Eigen warps. In addition to providing compact representations, such decompositions also allow for appearance interpolation and appearance completion. We additionally address the problem of transferring motion between captured 4d models. Given 4d training sets for two subjects for which a sparse set of semant

关键词： Video-based animation Multiview reconstruction 4d modelling Motion transfer Essential graph Eigen appearance maps Gaussian process Motion variation

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A topological framework for the temporal aspects of landform development 8

A topological framework for the temporal aspects of landform...

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ISPRS 8th 3d GeoInfo Conference and WG II/2 Workshop

作者： Löwner, M.-O. Becker, T. Institute for Geodesy and Photogrammetry Technische Universität Braunschweig Germany Institute for Geodesy and Geoinformation Science Technische Universität Berlin Germany

Natural landforms are of great importance for a variety of scientific and engineering disciplines. Investigation of landforms can be improved by comparison of features that have similar characteristics, structure and genesis. We propose a novel framework for the representation of the temporal aspects of landform development that simplifies the complex spatial relationships between 3d objects and the modelling of geological processes over time (4d) applying the Poincaré duality. Single landform layers are represented as nodes (dualStructures) and the neighbourhood of these layers are represented as edges (dualStructureRelations). Finally, a dualStructureState represents a whole landform of stable conditions over a period of time. Change of a landform is represented as additional edges (Abstract_GeoProcess) between the nodes of different layers. The overall structure constitutes a multilayer graph, where all the nodes from all N layers are included but are separated into N partitions of time. All dual representations may be associated with geometric and semantic representations, if available. A formal data model on natural landforms focusing on topological representation is a major step towards the interoperable exchange and comparison of scientific results on landforms. Concerning existing models, our framework can be considered as a superset with regard to model expressivity. This will improve the possibilities to exchange or link data between different application fields. © 2013 Copernicus. All Rights Reserved.

关键词： 3d data Models 4d modelling dual Graph Structures GML Landform development Poincaré duality

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The 4d evolution of the Teutonic Bore Camp VHMS deposits, Yilgarn Craton, Western Australia

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ORE GEOLOGY REVIEWS 2020年 120卷 103448-103448页

作者： Barrote, Vitor R. McNaughton, Neal J. Tessalina, Svetlana G. Evans, Noreen J. Talavera, Cristina Zi, Jian-Wei Mcdonald, Bradley J. Curtin Univ John de Laeter Ctr Kent St Bentley WA 6102 Australia Curtin Univ Inst Geosci Res TIGeR Kent St Bentley WA 6102 Australia Curtin Univ Sch Earth & Planetary Sci Kent St Bentley WA 6102 Australia Monash Univ Sch Earth Atmosphere & Environm Clayton Vic 3800 Australia Univ Edinburgh Sch Geosci Kings BldgJames Hutton Rd Edinburgh EH9 3FE Midlothian Scotland China Univ Geosci State Key Lab Geol Proc & Mineral Resources Beijing Peoples R China

The Teutonic Bore Camp, comprised of the Teutonic Bore, Jaguar and Bentley deposits, is one of the most significant volcanic-hosted massive sulphide (VHMS) camps in Western Australia. despite being extensively studied, only recently there have been advances in the understanding of the mechanism that drove the formation of mineralisation. It has been recognized by recent studies that the volcanic-hosted deposits from the Teutonic Bore Camp represent replacement-type VHMS systems, with significant input of fluids and metals from a magmatic source. This paper tests the existing hypothesis that the nearby Penzance granite acted as the metals source and/or thermal engine driving the development of these ore deposits. New age constraints on the formation of the host volcanic sequence at the Bentley deposit and the crystallization of the Penzance granite allows for the construction of a 4d evolutionary model for the ore system. A new U-Pb SHRIMP monazite age of 2681.9 +/- 4.5 Ma indicates that the Penzance granite post-dates the host stratigraphy at Bentley (ca. 2693 Ma) and is probably coeval with mineralisation. All zircons (Penzance, Bentley units I and III) have very similar epsilon Hf-(i), with most values between -1 and + 6, slightly higher than the epsilon Hf-(i) of zircons from other granites and volcanics within the Kurnalpi Terrain, and indicative of juvenile sources. The mean Th/U ratios are similar to 0.7 and similar to 0.6 for the Penzance and Bentley zircons, respectively. All zircons have similar Ce/Nd-(CN) ratios. The chemical similarities between the zircons from the granite and the volcanic rocks at Bentley support a shared magmatic source between the Penzance and the Teutonic Bore Camp sequence. The Penzance granite is the likely source of heat, and potentially metals, which drove the VHMS mineralisation at the Teutonic Bore Camp.

关键词： Penzance Teutonic Bore Volcanic-hosted massive sulphide Archean Geochronology 4d modelling

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