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	sigradi2010_240
id	sigradi2010_240
authors	Lombera, Rodríguez Hassán; Trujillo Rivero Andy
year	2010
title	Real - time Minor Deformations that Result from Collisions Using Bump and Normal Mapping
source	SIGraDi 2010_Proceedings of the 14th Congress of the Iberoamerican Society of Digital Graphics, pp. Bogotá, Colombia, November 17-19, 2010, pp. 240-243
summary	This paper presents a method for simulating minor deformations that result from collisions on objects’ surfaces. The method alters only bump maps and leaves mesh geometry unchanged; it is suited to real - time applications where the primary concern is computational efficiency. The paper provides a representative model for deformable objects. Texture mapping and computer graphics techniques based on lighting are referenced as well. Finally, results are provided, along with the most noteworthy findings obtained with the use of this method.
keywords	bump mapping, normal mapping, minor deformations, real - time.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	sigradi2013_263
id	sigradi2013_263
authors	Lonsing, Werner
year	2013
title	Introducing a Workshop to build an Affordable 3D-Scanner: Presenting a Variety of Computational Concepts to Novice Students of Architecture
source	SIGraDi 2013 [Proceedings of the 17th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Chile - Valparaíso 20 - 22 November 2013, pp. 475 - 478
summary	This paper outlines and describes a workshop designed for presenting and teaching a variety of computational concepts to novice students of architecture. While the ostensible purpose is the building of a cheap scanner the workshop facilitates a variety of techniques like model-making, basics of robotics or 3D-point-clouds. Novice students can discover a broad range of computational technologies both in hardware and software over a short period of time.
keywords	FabScan; Workshop; 3D-Scanner; Arduino; point-cloud
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	sigradi2016_732
id	sigradi2016_732
authors	Lonsing, Werner
year	2016
title	Smartness and Interactiveness in Architecture
source	SIGraDi 2016 [Proceedings of the 20th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Argentina, Buenos Aires 9 - 11 November 2016, pp.157-164
summary	Smart architecture has become a widespread term. In general it relates to computational components in buildings interacting with either the environment or the inhabitants. The term ’smart’ itself leads to irritations, because objects can neither be smart by itself nor can a somehow applied smartness make a whole building smart. The presentation of some projects created by means of the Makers’ culture shows an alternate pass to handle computational and interactive elements in buildings as part of the concept of empathic architecture.
keywords	Smart architecture; Maker; Home automation; Empathic architecture
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	ga9807
id	ga9807
authors	Loocke, Philip Van
year	1998
title	Consequences for practical aesthetics and for aesthetical theory of the insertion of principles from quantum theory in cellular automata
source	International Conference on Generative Art
summary	A cellular automaton that includes some principles from quantum theory is considered. The automaton generates forms of an aesthetic nature. At every time step, a form grows with a single cell. This cell is selected with a selection probability that is determined by an amplitude. If the algorithm is run with selection of the cell of maximal amplitude at every time step, a type of form results that is called 'platonic'. Such forms typically have higher aesthetic complexity than their non-platonic counterparts. The case of selection probabilities determined by squares of amplitudes has a strong analogy with quantum theory. This analogy is elaborated by consideration of forms that have mutual correlations. These correlations can be of a classical nature, of a quantum mechanical type, or of a type that is termed 'super-correlation'.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga9912
id	ga9912
authors	Loocke, Philip Van
year	1999
title	The art of growth and the solution of cognitive problems
source	International Conference on Generative Art
summary	A cellular method is proposed as an alternative for a connectionist approach. The present method does not use connections between cells, but introduces a field concept instead. If the fields are determined in accordance with the transformations familiar from fractal theory, then the solutions of problems that have some symmetry are forms of remarkable beauty. This way, a link is proposed between generative art and problem solving. It is conjectured that the ‘black box’ nature of connectionist systems can be replaced by an approach in which the solution of a problem coincides with a vivid visualization, also if the problems at hand are of a high-dimensional nature.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ecaadesigradi2019_159
id	ecaadesigradi2019_159
authors	Lopes, Jo?o, Paio, Alexandra and Beir?o, José Nuno
year	2019
title	The Morphology of Public Open Spaces as Visual Opportunity Fields - A space syntax approach based on Revelation and VGA maps customization with SalaScript
doi	https://doi.org/10.52842/conf.ecaade.2019.3.277
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 3, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 277-286
summary	This paper explores the visual dynamics of the morphology of public open spaces. Resorting to space syntax concepts, visual graph analysis (VGA), and the innovative use of its standard tool Depthmap, a set of case studies is analysed under the perspective of visual opportunity fields and building upon the established concept and metrics of Revelation. A series of related novel measures and visualizations are developed, which are only possible, in Depthmap environment, by the advanced use of its scripting language: SalaScript. Despite Depthmap being the standard tool among the space syntax community, there is a lack of references to the explicit use of SalaScript. One major objective of this paper is to illustrate, and document, its possibilities to a broad audience by extending, customizing and introducing a more interactive approach in handling VGA maps. We present SalaScript functionalities and its use in the development of visual analysis scripts that allow the study of revelation, which we then apply to a set of real public open spaces case studies.
keywords	Visibility graph analysis; Space syntax; Public open space; Depthmap SalaScript; Revelation
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:59

_id	ecaade2015_285
id	ecaade2015_285
authors	Lopes, João V.; Paio, Alexandra, Beirão, José N., Pinho, Eliana Manuel and Nunes, Luís
year	2015
title	Multidimensional Analysis of Public Open Spaces - Urban Morphology, Parametric Modelling and Data Mining
doi	https://doi.org/10.52842/conf.ecaade.2015.1.351
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. 351-360
summary	Public open spaces (parks, squares and other gathering places) can only be grasped from a simultaneous view of their attributes. In an ongoing Phd research project we propose to overcome the limitations of traditional-descriptive urban morphology methods in dealing with this simultaneity derived from their many shapes, functions, uses and relations within the urban structure. After developing the relations between formal attributes and intangible spatial properties, their identity and proximity may be disclosed by multivariate statistical analysis and data mining techniques. We outline a multidimensional method for the synchronic analysis and classification of the public open spaces departing from a research corpus of 126 Portuguese urban squares, whose analysis is intended to interactively (re)define it. The work done so far is presented, which comprises: (i) firming the concepts, criteria and attributes to extract; (ii) survey on theories, methods and spatial analysis tools and shortcomings identification; (iii) adaptation and/or creation of new methods and tools; (iv) creation of databases from CAD and GIS environments; (v) research on multivariate analysis, data mining and data visualization techniques.
wos	WOS:000372317300038
series	eCAADe
email
more	https://mh-engage.ltcc.tuwien.ac.at/engage/ui/watch.html?id=975efcfa-7029-11e5-a1a9-9786dd4d89a9
last changed	2022/06/07 07:59

_id	caadria2022_349
id	caadria2022_349
authors	Lopez Rodriguez, Alvaro, Jaramillo Pazmino, Pablo Isaac and Pantic, Igor
year	2022
title	Augmented Active-Bending Formwork for Concrete, A Manufacturing Technique for Accessible Local Construction of Structural Systems
doi	https://doi.org/10.52842/conf.caadria.2022.2.181
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 181-190
summary	This research introduces Augmented Reality (AR) for manufacturing concrete structures through an open platform for autonomous construction. The study was developed under the following scopes: computational algorithms for bending simulations, materiality tests, system implementation, and a set of Augmented Reality (AR) tools. AR devices offer a technological tool that allows for a self-built environment through holographic guidance, allowing the untrained workforce to participate in the process. This technology can help users select the system to construct through an Open-Source platform, reducing the gap between complex computational geometries and construction processes. The research aims to investigate a building system that could benefit the UN Objectives SDG 10 by increasing the access to technology in undeveloped communities, SDG 11 and SDG 12 by promoting a self-sustainable method of construction based on local resources and material efficiency. In conjunction with the development of the AR Platform and augmented manufacturing, a 1:1 prototype was built in Quito, Ecuador, with the help of seven people with no previous knowledge of digital tools or construction. Presenting a novel, fast, and affordable concrete formwork connected with AR assisted assembly methods that facilitate access to more efficient and advanced building technology.
keywords	Mixed Reality, Distributed Manufacturing, Online Platforms, Affordability, Local Communities, SDG 10, SDG 11, SDG 12
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	12fd
authors	Lorenc, S.J. and Bernold, L.E.
year	1998
title	Excavator-mounted ordnance locating system using electromagnetic sensing technology
source	Automation in Construction 7 (4) (1998) pp. 243-258
summary	There are in excess of 20 million acres of bomb and artillery ranges under the control of the Department of Defense (DoD). Each year some 800,000 to 2,000,000 km2 are turned over to civilian (private or commercial) use. Some of this land is contaminated with buried unexploded ordnance (UXO). These UXOs present a safety hazard and raise many environmental concerns. In addition to inaccurate locating, one of the most difficult aspects for the operator of an excavator is the inability to see the target ordnance while it is covered with soil and debris. This paper presents a system which is mounted to the arm of an excavator and is capable of detecting a buried UXO located in the path of an excavator's bucket. Also, the system is able to determine the precise location of the ordnance relative to the excavator's bucket. This information will allow the operator not only to avoid striking the ordnance during the digging operation, but also to expose the object by removing the soil around it. This technology is also capable of locating small UXO which can be buried within the spoil material. This technology has the potential to result in savings of millions of dollars in operating costs and prevent the damage or loss of equipment.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	14ee
authors	Lorenc, S.J., Handlon, B.E. and Bernold, Leonhard E.
year	2000
title	Development of a robotic bridge maintenance system
source	Automation in Construction 9 (3) (2000) pp. 251-258
summary	This paper will expand on the Robotic Bridge Maintenance System (RBMS) developed by the Construction Automation and Robotics Laboratory (CARL) at North Carolina State University (NCSU). The system consists of a 4-dof robot, designed and built at NCSU, mounted on the end of a truck-mounted peeper crane. Additionally, a containment system is mounted in front of the robot to contain the toxic waste created by the removal of the lead-based paint from the bridge beams and trusses.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	ecaade2020_026
id	ecaade2020_026
authors	Lorenz, Wolfgang and Wurzer, Gabriel
year	2020
title	FRACAM: A 2.5D Fractal Analysis Method for Facades - Test Environment for a Cell Phone Application to Measure Box Counting Dimension
doi	https://doi.org/10.52842/conf.ecaade.2020.1.495
source	Werner, L and Koering, D (eds.), Anthropologic: Architecture and Fabrication in the cognitive age - Proceedings of the 38th eCAADe Conference - Volume 1, TU Berlin, Berlin, Germany, 16-18 September 2020, pp. 495-504
summary	Fractal analysis helps explaining and understanding architectural quality, e.g., regarding visual complexity described by fractal (box counting) dimension. FRACAM, a cell phone application, uses fractal image analysis methods and takes into account the specific requirements of architectural purposes at the same time. It was developed by the authors to measure the fractal dimension of buildings; more precisely, to measure (color or grayscale) images of (street) views. This paper examines the results of various implemented algorithms for dependencies on camera settings and environmental factors. The main contribution of the authors deals with both an improved differential box counting mechanism applied to color images and a discussion about measurement results concerning influences on the algorithms presented.
keywords	cell phone application; box counting; fractal dimension; visual complexity; elevation analysis
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ecaade2021_046
id	ecaade2021_046
authors	Lorenz, Wolfgang E., Faller, Arnold and Wurzer, Gabriel
year	2021
title	DAttE - Detection of Attic Extensions - Workflow to analyze the potentials of roofs in an urban environment
doi	https://doi.org/10.52842/conf.ecaade.2021.1.375
source	Stojakovic, V and Tepavcevic, B (eds.), Towards a new, configurable architecture - Proceedings of the 39th eCAADe Conference - Volume 1, University of Novi Sad, Novi Sad, Serbia, 8-10 September 2021, pp. 375-384
summary	European cities like Vienna are characterized by strong growth and, as a result, by high demand for living space. Extending the attic is one way of meeting this demand. However, there is a lack of data to know which roofs are already expanded and to what extent. The city is interested in the data in two ways: firstly, in relation to the distribution of potentials (a possible change in population density, for example, has an impact on infrastructure and parking space) and, secondly, in relation to the material composition (city as a material resource). This paper provides a workflow to fill this gap of knowledge. The new methods of detecting attic extensions are described and a case study is given at the end to show workability.
keywords	point clouds; thermal detection; drone detection; participation
series	eCAADe
email
last changed	2022/06/07 07:59

_id	sigradi2018_1268
id	sigradi2018_1268
authors	Louise Jenney, Sarah; Mühlhaus, Michael; Petzold, Frank
year	2018
title	Connect, Motivate, Communicate: A Foundation for Gamification in Planning Communication
source	SIGraDi 2018 [Proceedings of the 22nd Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Brazil, São Carlos 7 - 9 November 2018, pp. 1105-1111
summary	Planning in the urban context is always a complex task in which the diverse interests of different stakeholders have to be weighed up against each other. For this to happen, communication is the key leading to successful and sustainable solutions. Often objective factors like the number and diversity of participating stakeholders is the benchmark for successful planning processes. We examine the motivational factors of the different main stakeholder groups and give an insight in the complex system of motivational and hindering factors that need to be considered when designing engaging sensible and sustainable exchange of knowledge and interests.
keywords	Motivation; Gamification; Communication; Participation; Collaboration
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	9c33
authors	Love, Peter E.D. and Irani, Zahir
year	2001
title	Evaluation of IT costs in construction
source	Automation in Construction 10 (6) (2001) pp. 649-658
summary	Information Technology (IT) evaluation is a research area that has received limited attention in the construction and engineering literature. Yet, the justification of investments in IT is one of the many challenges facing managers in the construction industry today, as there is an ever-increasing demand for organisations to improve the efficiency and effectiveness of their IT deployments. In developing a deeper understanding of the evaluation process, the authors of this paper present a review of IT evaluation in construction from a benefit and cost perspective. In doing so, identifying future challenges for IT cost evaluation research in construction.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	e9e6
authors	Lowerre, Bruce and Reddy, Raj D.
year	1976
title	The Harpy Speech Understanding
source	1976. pp. 1-19
summary	Harpy is one of the first systems to demonstrate that high performance, large vocabulary connected speech recognition systems can in fact be realized economically for task- oriented (restricted) languages. In this chapter the authors present, using simple examples, the principles of organization of the Harpy system. They illustrate how knowledge sources (KSs) are specified, how the knowledge compiler integrates the KSs into a unified directional graph representation, and how this knowledge is utilized. In conclusion, they discuss many of the limitations of the present system and how these can be eliminated or reduced in future systems
keywords	speech recognition, AI
series	CADline
last changed	2003/06/02 10:24

_id	sigradi2017_042
id	sigradi2017_042
authors	Loyola, Mauricio; Pablo Domínguez, Diego Rossel, Nicolás Madariaga, Constanza Montiel
year	2017
title	GypsumFold: Un método para el plegado de paneles de yeso en ángulos variables para la fabricación de productos arquitectónicos [GypsumFold: A method for folding gypsum panels at varying angles for the manufacture of architectural products]
source	SIGraDi 2017 [Proceedings of the 21th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-227-439-5] Chile, Concepción 22 - 24 November 2017, pp.287-292
summary	Este articulo propone un método para fabricar elementos constructivos con yeso-cartón en ángulos variables una manera fácil, rápida, precisa y económicamente eficiente. Su funcionamiento se basa en el diseño y manufactura automatizada de ranuras fresadas en planchas de yeso-cartón utilizando una técnica innovadora denominada “escalonamiento”, la cual permite obtener cualquier ángulo de pliegue usando un mismo procedimiento y herramientas estándar.
keywords	CAD/CAM; Digital Fabrication; Gypsum Board; Complex Geometries
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	ecaade2021_014
id	ecaade2021_014
authors	Lu, Ming, Zhou, Xinjie, Zhou, Yifan, Zhang, Liming, Zhu, Weiran and Yuan, Philip F.
year	2021
title	Research on Realtime Communication and Control Workflow with Vision Feedback Integrated in Robotic Fabrication
doi	https://doi.org/10.52842/conf.ecaade.2021.2.145
source	Stojakovic, V and Tepavcevic, B (eds.), Towards a new, configurable architecture - Proceedings of the 39th eCAADe Conference - Volume 2, University of Novi Sad, Novi Sad, Serbia, 8-10 September 2021, pp. 145-152
summary	On-site construction is one of the main research directions of robot construction. Due to the complex and everchanging construction environment on the site, traditional offline programming and simple conditional programming cannot meet the needs of robot on-site construction at all. Realtime adjustment of the robot's operating program for the real-time situation in the field is the appropriate solution. Therefore, the real-time communication and control of robots has become a key issue for robot on-site construction. This article discusses in turn the way of robot offline program control through EthernetKRL and grasshopper. A remote real-time communication and control method for an on-site construction robot is studied, and the application of the method in the on-site construction process of an actual robot is introduced with the Wuzhen coffee kiosk project as an example. Based on the above methods, remote real-time monitoring of the construction robot on site can be realized, which provides a reference for the actual engineering application of the construction robot on site.
keywords	on-site; robot; fabrication; communication; sensor
series	eCAADe
type	normal paper
email
last changed	2022/06/07 07:59

_id	caadria2021_027
id	caadria2021_027
authors	Lu, Ming, Zhou, Yifan, Wang, Xiang and Yuan, Philip F.
year	2021
title	An optimization method for large-scale 3D printing - Generate external axis motion using Fourier series
doi	https://doi.org/10.52842/conf.caadria.2021.1.683
source	A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 1, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 683-692
summary	With the increase in labor costs, more and more robot constructions appear in building construction and spatial structure fabrication. There are many robots working on large-scale objects. When the reach range of the robot cannot meet the requirements, so an external axis is needed. The external axis is usually a linear motion device, which can significantly increase the operating range of the robotic arm. In actual construction, it is also widely used. This article introduces a 3d printing coffee bar project. Because this project is of a large scale and needs to be printed at one time, the XYZ external axis was used in this project to complete the task. Inspired by this project, this article study several methods of optimizing the motion of external axes in large-scale construction. Finally, we chose to use the Fourier series as the most suitable method to optimize the printing path and programed this method as a component of FUROBOT for more convenient use. This article explains the principle of this method in detail. Finally, this article uses a 3D printing example to illustrate the precautions in actual use.
keywords	robotics; motion optimize; Fourier series; 3D printing; external axis
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	eaea2015_t1_paper06
id	eaea2015_t1_paper06
authors	Lu, Shaoming
year	2015
title	Port Heritage: Urban Memory of Harbor Cities (Case Study of Shanghai)
source	ENVISIONING ARCHITECTURE: IMAGE, PERCEPTION AND COMMUNICATION OF HERITAGE [ISBN 978-83-7283-681-6],Lodz University of Technology, 23-26 September 2015, pp.71-81
summary	Through literary review on historical ports from the 1st Opium War to 1949, this paper mainly focuses on the elements and value of modern ports along the Huangpu River from Baoshan to Minhang. These ports with historical events, places and objects are viewed as urban heritage to arise people’s attention to this kind of memory place during the process of urban transformation. Port heritage with unique material relics and immaterial information makes a great contribution to recalling the massive memory and making identity of the port city, which should be preserved definitely.
keywords	port heritage; urban memory
series	EAEA
email
last changed	2016/04/22 11:52

_id	caadria2018_046
id	caadria2018_046
authors	Lu, Siliang and Cochran Hameen, Erica
year	2018
title	Integrated IR Vision Sensor for Online Clothing Insulation Measurement
doi	https://doi.org/10.52842/conf.caadria.2018.1.565
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 1, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 565-573
summary	As one of the most important building systems, HVAC plays a key role in creating a comfortable thermal environment. Predicted Mean Vote (PMV), an index that predicts the mean value of the votes of a large group of persons on the thermal sensation scale, has been adopted to evaluate the built environment. Compared to environmental factors, clothing insulation can be much harder to measure in the field. The existing research on real-time clothing insulation measurement mainly focuses on expensive infrared thermography (IR) cameras. Therefore, to ensure cost-effectiveness, the paper has proposed a solution consisting of a normal camera, IR and air temperature sensors and Arduino Nanos to measure clothing insulation in real-time. Moreover, the algorithm includes the initialization from clothing classification with pre-trained neural network and optimization of the clothing insulation calculation. A total of 8 tests have been conducted with garments for spring/fall, summer and winter. The current results have shown the accuracy of T-shirt classification can reach over 90%. Moreover, compared with the results with IR cameras and reference values, the accuracies of the proposed sensing system vary with different clothing types. Research shall be further conducted and be applied into the dynamic PMV-based HVAC control system.
keywords	clothing insulation; skin temperature; clothing classification; IR temperature sensor; Optimization
series	CAADRIA
email
last changed	2022/06/07 07:59

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