Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	ecaade2012_314
id	ecaade2012_314
authors	Bourdakis, Vassilis; Pentazou, Ioulia
year	2012
title	Real City Museum/Virtual City Model: Real Datasets/Virtual Interactions
doi	https://doi.org/10.52842/conf.ecaade.2012.2.337
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 337-341
summary	Creating virtual city models at different scales, emphases and overall orientations is a topic that has attracted great interest in architectural and urban planning context over at least the last two decades. However the complexity of the city as a historical formation demands new methods of representation embracing interactive technologies. The work discussed in this paper is part of a large multidisciplinary project for the development of the Volos city museum. Enhancing the interaction between the public and the museum exhibits is essential. The paper focuses on the definition, complexity and orientation of the data structures and the integration of 3D contemporary and historic data that is the backbone for the digital representations and the interactive applications developed for the museum.
wos	WOS:000330320600034
keywords	Database design; XML; Dublin Core metadata; history; 3D modelling; geo-referencing
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2012_257
id	ecaade2012_257
authors	Fischer, Jan-Ruben
year	2012
title	Optimizing Digital Organic Freeform Modelling for Fabrication by Using Parameterization With Glass Fibre Reinforced Plastics (GRP): A Case Study
doi	https://doi.org/10.52842/conf.ecaade.2012.2.191
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 191-200
summary	In the fabrication of organic free-form shapes in architecture one is constantly faced with specifi c planning and design challenges. This paper examines these problems as well as possible solutions for the design of a completed and built prototype using the example of an organically shaped pavilion made of glass fi bre reinforced plastic modules. The paper describes which adjustments to the original design were required to take the step from “digital physicality” to “physical digitality” to realize a constructive and economically successful implementation. The solutions discussed combine modern digital software methods such as parametric design with innovative 3D modelling principles.
wos	WOS:000330320600019
keywords	Digital fabrication; freeform modelling; parametric design; bionic, GRP
series	eCAADe
email
last changed	2022/06/07 07:50

_id	ecaade2012_197
id	ecaade2012_197
authors	ElBanhawy, Eiman Y. ; Dalton, Ruth ; Thompson, Emine Mine ; Kottor, Richard
year	2012
title	Real-Time Electric Mobility Simulation in Metropolitan Areas. A case study: Newcastle-Gateshead
doi	https://doi.org/10.52842/conf.ecaade.2012.1.533
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 533-546
summary	This paper discusses the potential of emerging digital representations of built environments coupled with agent-based modelling (ABM). A new set of urban transportation data is provided as an input which is the electric vehicles (EVs) population of one of the UK metropolitan areas. The study is a part of a PhD research that focuses on investigating computer-aided software to develop a virtual route for electric mobility in the North Sea Region. An overview of agent-based simulation platforms is discussed. Electric mobility system has particular paradigms that differ from conventional urban transport systems; a comparison is presented followed by the recommended approach of integrating the two techniques (visualization and simulation). Finally, the architecture of agents’ algorithm within the EVs network is presented through a case study of virtual Newcastle-Gateshead model.
wos	WOS:000330322400055
keywords	E-mobility; electric vehicles; simulation; agent based modelling; virtual city models
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ecaade2012_185
id	ecaade2012_185
authors	Hemmerling, Marco; Lemberski, David
year	2012
title	Sparkler: The Vitruvian Man vs. Buckminster Fuller
doi	https://doi.org/10.52842/conf.ecaade.2012.2.127
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 127-132
summary	Every production technique requires a focus on their specifi c demands and possibilities. This paper shows the whole design, optimization and production process includingpreliminary studies, preliminary design, form-fi nding and assembly based on a case study. All needed data for optimization in external software and for digital production is derived from a central parametric model programmed in Grasshopper. The result in a collaborative process between theory/practice, human/machine, software/hardware and analogue/digital is the Sparklerpavilion.
wos	WOS:000330320600012
keywords	Parametric Modelling; Digital Fabrication; Computational Design and Construction; CAAD curriculum
series	eCAADe
email
last changed	2022/06/07 07:49

_id	ecaade2012_83
id	ecaade2012_83
authors	Jones, Paulo; Eloy, Sara; Ricardo, Rui; Dias, Miguel Sales
year	2012
title	Architectural Rehabilitation and Conservation Processes Informed by Augmented Reality
doi	https://doi.org/10.52842/conf.ecaade.2012.2.411
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 411-418
summary	The goal of the presented research is to explore human-machine interaction and to study how Augmented Reality (AR) may be a potential tool to inform Architectural Rehabilitation and Conservation processes. Nowadays obtaining data to inform both marchitecture projects and real estate investments is a very bureaucratic process. City councils technicians suffers from the same diffi culties when are in fi eldwork to do inspections and lack a complete sort of information. This proposal considers that the use of mobile technologies as smart phones and tablets can empower these technicians to obtain building related data. The specifi c goal of the study aims to develop a data model and an interface that can be made available to professionals which allows an efficiently reply to the user’s needs as the system enables the gathering of updated information considering a particular building.
wos	WOS:000330320600043
keywords	Augmented reality; interface; architecture; rehabilitation; data
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2012_142
id	ecaade2012_142
authors	Shin, Dongyoun; Arisona, Stefan Müller; Georgakopoulou, Sofia; Schmitt, Gerhard; Kim, Sungah
year	2012
title	A Crowdsourcing Urban Simulation Platform on Smartphone Technology: Strategies for Urban Data Visualization and Transportation Mode Detection
doi	https://doi.org/10.52842/conf.ecaade.2012.2.377
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 377-384
summary	We propose a crowdsourcing simulation environment that brings human intention into the urban simulator. Our fundamental goal is to simulate urban sustainability by employing direct human interaction. In this paper we present a prototype mobile phone application that implements a novel transportation mode detection algorithm. The mobile phone application runs in the background and continuously collects data from the built-in acceleration and network location sensors. The collected data is analyzed by the transportation mode detection algorithm and automatically partitioned into activity segments. A key observation of our work is that walking activity can be robustly detected in the data stream and acts as a separator for partitioning the data stream into other activity segments. Each vehicle activity segment is then sub-classifi ed according to the type of used vehicle. Our approach yields high accuracy despite the low sampling interval and not requiring GPS data that bring minimized device power consumption. Ultimately, the collected information can be translated into real-time urban behavior and will indicate sustainability, both on the personal and the city level.
wos	WOS:000330320600039
keywords	Crowdsourcing simulation platform; transport mode detection; social sensing; urban sustainability; mobile application
series	eCAADe
email
last changed	2022/06/07 07:56

_id	ecaade2012_317
id	ecaade2012_317
authors	Boeykens, Stefan ; Himpe, Caroline ; Martens, Bob
year	2012
title	A Case Study of Using BIM in Historical Reconstruction: The Vinohrady synagogue in Prague
doi	https://doi.org/10.52842/conf.ecaade.2012.1.729
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 729-737.
summary	This article refl ects on the digital reconstruction of the Vinohrady Synagogue in Prague, which was demolished in 1951. Based on an international collaboration through the Erasmus program, expertise derived from other Viennese synagogue reconstructions at TU Vienna was combined with a resource organization methodology developed at KU Leuven. The reconstruction process is carried out using BIM software, which poses some particular attention on the software methodology and model structure, but at the same time illustrates the added value of a BIM approach, when comparing with more traditional CAD modelling systematics. Of particular interest is the approach for modelling complex geometry, integrating with more traditional 2D documents and for visualizing reconstruction assumptions within the 3D model representation.
wos	WOS:000330322400077
keywords	Virtual reconstruction; destroyed synagogue; 3D-modeling; BIM; urban context
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ascaad2012_004
id	ascaad2012_004
authors	El-Masri, Souheil; Mazen Kana’an and Mohammed Fawzi Elanany
year	2012
title	Architecture, Digital Techniques & Project Management
source	CAAD \| INNOVATION \| PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 14-20
summary	With the invention of computers, Architecture and other Engineering disciplines have undergone revolutionary developments offering new opportunities for improving efficiency and opening new frontiers for creativity. For example in architecture and urban planning, the discussions have been extended from conventional writings to cover cyberspace, virtual architecture and digital city. Moreover, computers have helped in the realization of many complex projects that would be inconceivable with traditional drawing techniques. This is clearly demonstrated in the works of Frank Gehry's, Zaha Hadid, Daniel Libeskind and many others. In deed, digital techniques have changed the design creative process and how the architects think. Traditionally the structured development architectural ideas from 2D drawings (plans, sections, elevations) towards 3D resolution has been replaced by more interactive approach of 2D & 3D. The changes that digital techniques have brought to the field of Architecture; including practice and education, can obviously be viewed from different angles and incite many discussions and questions. However, the purpose of this presentation is to discuss the role of digital techniques within the overall framework of project management in Gulf Housing Engineering. It starts the discussion with a brief on architecture and digital techniques in the Gulf Region, especially during the “boom period”; a period characterized by rapid production of buildings relying heavily on virtual images. It is against this background, the role of digital techniques is evaluated from a practice point of view. In fact in GHE, digital means are integral parts of the holistic project delivery process starting form initiation, to various design stages to construction ending with project completion. In this process emphasis is paid to the inter-relationships between IT Systems and Quality Control which in turn facilitate measuring, monitoring and reporting on various managerial, technical and design and budgetary aspects of the project. The presentation is supported by real case studies of GHE portfolio. It emphasizes that digital techniques should be an integral part of an overall process and should be seen as means to enhance efficiency and creativity; and should contribute to the betterment of the built environment
series	ASCAAD
email
more	http://www.ascaad.org/conference/2012/papers/ascaad2012_004.pdf
last changed	2012/05/15 20:46

_id	sigradi2012_95
id	sigradi2012_95
authors	Groetelaars, Natalie Johanna; Arivaldo Leão de Amorim
year	2012
title	Dense Stereo Matching (DSM): conceitos, processos e ferramentas para criação de nuvens de pontos por fotografias [Dense Stereo Matching (DSM): concepts, processes and tools to generate point cloud from photographs]
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 361-365
summary	This paper treats the technology to generate point clouds from photographs, more known as Dense Stereo Matching (DSM) or Structure from Motion (SfM), among other terminologies. The article presents the concepts, basic principles and architectural survey phases with DSM: planning, data acquisition, processing and post-processing to obtain other products from point cloud data. Then, we present several existing software for DSM, classified in three categories: web-based tools, free software/opensource and commercial software. Finally, we discuss the potentialities of this new technologies for architectural documentation and compare DSM with 3D laser scanning.
keywords	Dense Stereo Matching (DSM); Nuvem de pontos; Levantamento cadastral; Documentação arquitetônica; Ferramentas computacionais
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	ascaad2012_025
id	ascaad2012_025
authors	Hamani, Dalil and Jean Michel Olive
year	2012
title	Information System to Improve the Building Production Management Cooperative Work in Design and Architectural Production
source	CAAD \| INNOVATION \| PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 253-270
summary	Our work is to enable partners of a construction project (building owner, architect, engineer, etc.) to share all the technical data produced and manipulated during the building process, by setting up interfaces for an accessible information system via the internet. Our system would be able to deliver an answer to a user to a particular question asked. The system links databases and allows building partners to access and to manipulate specific information. This paper covers the information structure model based on building construction knowledge and the access to user-relevant information. First, the paper aims to establish the state of the art of the information systems available today in the building construction field. Second, we present the contribution of our research to the description of the building elements (foundations, ramps, stairs, etc.), where information is share by partners who are distant from one another and focused on fields of expertise that are distinct but concurrent. Our system links distributed databases and provides an updated building representation that is being enriched and refined all along the building life cycle. It consists of 3D representations of the building as well as data that are associated with each graphical entity (walls, slabs, beams, etc.).
series	ASCAAD
email
more	http://www.ascaad.org/conference/2012/papers/ascaad2012_025.pdf
last changed	2012/05/15 20:46

_id	caadria2012_031
id	caadria2012_031
authors	Ji, Guohua; Ying Xu and Ying Wang
year	2012
title	3D urban space information system: A preliminary prototype based on Google Earth plugin
doi	https://doi.org/10.52842/conf.caadria.2012.359
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 359–368
summary	2D GIS has shown its limitations in many situations, especially when it’s applied in urban design. Many studies have been carried out to deal with the problem. Some attempted to link 3D visualisation to data stored within 2D GIS, and others tried to combine GIS, CAD and visualisation together. They all aim to meliorate current GIS for 3D applications. The authors of this paper developed a preliminary prototype of a 3D urban space information system based on Google Earth Plugin. It sets up a server to store and offer specific urban space information. With the desktop application that embeds Google Earth Plugin, user can upload and download models on the server, view them in the virtual 3D environment of Google earth, and make models directly in the 3D environment. A server-side database plays the role of managing information. This paper introduces the key ideas and methods of the system development, including system structure, set-up of the serve, server side information management, and interactive modelling functions.
keywords	GIS; urban design; Google Earth plugin; VB.Net
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2012_095
id	caadria2012_095
authors	Johansson, Mikael and Mattias Roupé
year	2012
title	Real-time rendering of large building information models: Current state vs. state-of-the-art
doi	https://doi.org/10.52842/conf.caadria.2012.647
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 647–656
summary	With the use of Building Information Models (BIM), real-time 3D visualisations have become a natural tool in order to communicate ideas and share information between all involved parties in a project. Currently, several different BIM viewers are available for the purpose of interactive presentations and design reviews. However, as BIMs become larger and more detailed, it provides a challenge for available software solutions to manage them interactively. In this paper we present our findings from analysing three commonly used BIM viewers - Tekla BIMSight, Autodesk Navisworks and Solibri Model Viewer - in terms of real-time rendering performance. In addition we have developed a prototype BIM viewer to test modern approaches for efficient real-time rendering. Specifically, we have implemented the latest version of the Coherent Hierarchical Culling algorithm. Our results show that existing BIM viewers all share limitations in their ability to handle large and complex BIMs interactively. However, for the same test models, our prototype BIM viewer enables smooth real-time performance with no visual artefacts. The results from our tests thus shows that the technology to enable correct real-time rendering of large and complex BIMs is already accessible, but are currently not utilised by any of the tested BIM viewers.
keywords	3D graphics; BIM; real-time rendering
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	ecaade2015_161
id	ecaade2015_161
authors	Papasarantou, Chrissa; Kalaouzis, Giorgos, Pentazou, Ioulia and Bourdakis, Vassilis
year	2015
title	A Spatio-Temporal 3D Representation of a Historic Dataset
doi	https://doi.org/10.52842/conf.ecaade.2015.1.701
source	Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 1, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 701-708
summary	Previous research (Bourdakis et al, 2012; Papasarantou et al, 2013) dealt with the problem of creating information visualisation systems capable of combining historical data of MUCIV's database and developing strategies that embed the non-spatial data in spatial models. The database was primarily designed as an experimental flexible spatio-temporal configuration of dynamic visual structures generating a variety of narrations through interaction.The attempt of producing a legible configuration driven by a number of criteria, led to the proposition of two different arrangements, namely the linear and radial array. The aim of this paper is to present the next step on the visualization after redefining both the way that thematic axes and data are visualized and arranged/scattered. Alternate configurations are investigated, based also on theoretical analysis on the conceptualization and perception of information visualization systems (Card et al 1999, Ware, 2004).
wos	WOS:000372317300076
series	eCAADe
email
more	https://mh-engage.ltcc.tuwien.ac.at/engage/ui/watch.html?id=74178dba-702a-11e5-aa5b-67bfe1e6502f
last changed	2022/06/07 08:00

_id	ecaade2012_041
id	ecaade2012_041
authors	Patlakas, Panagiotis ; Altan, Hasim
year	2012
title	Visualizing Post - Occupancy Evaluation Data: Rationale, methodology and potential of EnViz, a visualization software prototype
doi	https://doi.org/10.52842/conf.ecaade.2012.1.647
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 647-653.
summary	This paper introduces EnViz, a software prototype for the visualization of environmental data collected from post-occupancy evaluation surveys. The piece begins by introducing the rationale for the software, and why the authors believe it can be a valuable aid for environmental building design. The development methodology is described and the basic operability and interface are presented. A case study is introduced, and the results from the application of the software on the data from it are presented with accompanying images. Further results are presented, from the use of the software in workshops with undergraduate and post-graduate students, as well as researchers and professionals. Finally, future directions of the software development and the potential of the software are given.
wos	WOS:000330322400068
keywords	Visualization; post-occupancy evaluation; indoor environmental data; 3D graphics
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ecaade2012_209
id	ecaade2012_209
authors	Prousalidou, Elena
year	2012
title	A Digital Model for Fabric Formwork Panels: Using Physical Data to Train the Digital Model
doi	https://doi.org/10.52842/conf.ecaade.2012.2.159
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 159-167
summary	In the context of a wider inquiry on the integration of material properties and construction processes in computational models, this paper proposes a digital model for fabric formwork panels. Plaster cast in different types of fabric can produce a significant variation of resulting forms. The aim is to investigate whether data retrieved from physical models with 3D scanning techniques can improve the accuracy and efficiency of a simulation based on geometric principles, and better predict the behaviour of cast material in relation to the type of fabric. Setting up the computational model and choosing its parameters and constraints is based on the physical construction process, highlighting the relationship between material and form. As part of the cyclical exchange, evaluation of the digital model with physical testing demonstrates that the simulation can actually be trained by reducing the physical/ digital discrepancies.
wos	WOS:000330320600016
keywords	Fabric formwork; simulation; dynamic relaxation; 3d scanning; kinect
series	eCAADe
email
last changed	2022/06/07 08:00

_id	ecaade2012_86
id	ecaade2012_86
authors	QaQish ; Ra’Ed K.
year	2012
title	15 Years of CAD Teaching in Jordan: How Much Has Been Accomplished? A Comparative Analysis of the Use of CAD in Architectural Schools Between 1997 and 2012
doi	https://doi.org/10.52842/conf.ecaade.2012.2.023
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 23-32
summary	The paper reports on a study which examines the evolution in architectural education trends arising from the changes brought about by both Socioeconomic Factors and the implications of CAAD in the last 15 years in Jordanian universities. The findings reflect the views of thirteen (13) architecture faculties/schools through a nation-wide questionnaire survey conducted in the spring of 2012. The survey was structured to cover both private and public universities in Jordan, represented by faculties of engineering, architecture and design. Structurally, the main fi ndings of this study are summarized under six areas, namely: 1) General Students’ Information, 2) Demographic and Socioeconomic Factors, 3) CAD Competences amongst both Staff and Students, 4) Program of Study and CAD Courses, 5) Overall Satisfaction of CAD Courses and Training , 6) CAD and Social Networks. The majority of student respondents were females (144) (53.3%). The top laptop brands used were HP (17%) Toshiba (12.2%) and Dell (7.8%). The CAD packages found to be most highly used throughout universities were AutoCAD, 3D Max, Sketch-up, and Adobe Suite. The importance of new technologies, electronic book, and the social network aspects in enhancing CAD and 3D modeling software integration with the design studio was affi rmed yet no relationship to the gender was noted.
wos	WOS:000330320600001
keywords	CAD Integration, Socioeconomic Factors
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ecaade2023_259
id	ecaade2023_259
authors	Sonne-Frederiksen, Povl Filip, Larsen, Niels Martin and Buthke, Jan
year	2023
title	Point Cloud Segmentation for Building Reuse - Construction of digital twins in early phase building reuse projects
doi	https://doi.org/10.52842/conf.ecaade.2023.2.327
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 327–336
summary	Point cloud processing has come a long way in the past years. Advances in computer vision (CV) and machine learning (ML) have enabled its automated recognition and processing. However, few of those developments have made it through to the Architecture, Engineering and Construction (AEC) industry. Here, optimizing those workflows can reduce time spent on early-phase projects, which otherwise could be spent on developing innovative design solutions. Simplifying the processing of building point cloud scans makes it more accessible and therefore, usable for design, planning and decision-making. Furthermore, automated processing can also ensure that point clouds are processed consistently and accurately, reducing the potential for human error. This work is part of a larger effort to optimize early-phase design processes to promote the reuse of vacant buildings. It focuses on technical solutions to automate the reconstruction of point clouds into a digital twin as a simplified solid 3D element model. In this paper, various ML approaches, among others KPConv Thomas et al. (2019), ShapeConv Cao et al. (2021) and Mask-RCNN He et al. (2017), are compared in their ability to apply semantic as well as instance segmentation to point clouds. Further it relies on the S3DIS Armeni et al. (2017), NYU v2 Silberman et al. (2012) and Matterport Ramakrishnan et al. (2021) data sets for training. Here, the authors aim to establish a workflow that reduces the effort for users to process their point clouds and obtain object-based models. The findings of this research show that although pure point cloud-based ML models enable a greater degree of flexibility, they incur a high computational cost. We found, that using RGB-D images for classifications and segmentation simplifies the complexity of the ML model but leads to additional requirements for the data set. These can be mitigated in the initial process of capturing the building or by extracting the depth data from the point cloud.
keywords	Point Clouds, Machine Learning, Segmentation, Reuse, Digital Twins
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaade2012_025
id	ecaade2012_025
authors	Tonn, Christian ; Tatarin, René
year	2012
title	Volume Rendering in Architecture: Overlapping and combining 3d voxel volume data with 3d building models
doi	https://doi.org/10.52842/conf.ecaade.2012.1.719
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 719-726.
summary	Volume rendering is an illustration technique for visualising different 3D measured data or 3D simulation data interactively on screen. This paper introduces a method that overlays several types of volume data on an architectural surface model. This complex calculation takes place on the graphics card using hardware-accelerated shaders. An implemented software prototype entitled “VolumeRendering” is introduced. In addition to interactive visualisation, the objective was to create a user-friendly interface. Synergies and new evaluation possibilities arise through the overlay, e.g. of different measuring techniques, with a surface model. Finally the use of the software prototype is illustrated using examples from our interdisciplinary research project.
wos	WOS:000330322400076
keywords	Multiple Volume Rendering; Overlay; 3D Surface Models
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ecaade2012_143
id	ecaade2012_143
authors	Both, Petra von
year	2012
title	Potentials and Barriers for Implementing BIM in the German AEC Market: Results of a Current Market Analysis
doi	https://doi.org/10.52842/conf.ecaade.2012.2.151
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 151-158
summary	The research project „BIM – Potentials and Barriers“ aims to analyse the existing practice concerning BIM and the barriers for the implementation of this approach in Germany. Accompanied by an ‚advisory board’ with nameable representatives from practice, the public authorities and AEC associations, a set of hypotheses has been elaborated that could be evaluated by a detailed survey. Based on the detection of relevant stakeholders, the survey fi rst tries to disclose the real situation of how BIM is currently used in practice. Furthermore the potentials of the application of BIM in the different processes and target groups are determined as well as the barriers and constraints. Thereby the enhancement of the considered thematic areas is an important solution approach of the project: besides technological aspects, the analysis is also focusing on contracting, norms and processes as well as education, knowledge and role perception.
wos	WOS:000330320600015
keywords	BIM; survey; collaborative engineering; virtual engineering; product modelling
series	eCAADe
email
last changed	2022/06/07 07:54

_id	c4bd
id	c4bd
authors	Derix C, Gamlesæter A, Miranda P, Helme L and Kropf K
year	2012
title	Simulation Heuristics for Urban Design
source	In Mueller Arisona et al (eds), Digital Urban Modelling and Simulation: Communications in Computer and Information Science, Springer, Heidelberg, 2012
summary	Designing simulations for urban design not only requires explicit performance criteria of planning standards but a synthesis of implicit design objectives, that we will call ‘purpose rules’, with computational approaches. The former would at most lead to automation of the existing planning processes for speed and evaluation, the latter to an understanding of perceived urban qualities and their effect on the planning of cities. In order to transform purpose rules into encoded principles we argue that the focus should not be on defining parametric constraints and quantities, but on aligning the perceptual properties of the simulations with the strategies of the stakeholders (planner/ urban designer/ architect/ developer/ community). Using projects from the Computational Design and Research group at Aedas [CDR] as examples, this chapter will discuss how an open framework of lightweight applications with simple functionality can be integrated into the design and planning process by using computational simulations as urban design heuristics.
keywords	urban design, design heuristics, meta-heuristics, simulation, algorithm visualization
series	book
type	normal paper
email
more	http://www.springerlink.com/content/g58114676q4228h8/?MUD=MP
last changed	2012/09/20 14:17

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