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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Reformat results as: short short into frame detailed detailed into frame

_id	ecaade2010_056
id	ecaade2010_056
authors	Oezener, Ozan Oender; Farias, Francisco; Haliburton, James; Clayton, Mark J.
year	2010
title	Illuminating the Design: Incorporation of natural lighting analyses in the design studio using BIM
doi	https://doi.org/10.52842/conf.ecaade.2010.493
source	FUTURE CITIES [28th eCAADe Conference Proceedings / ISBN 978-0-9541183-9-6] ETH Zurich (Switzerland) 15-18 September 2010, pp.493-498
summary	The growing demand for sustainable architectural design motivates the integration of BIM technologies and novel design processes into architectural education. This paper presents the results from a set of educational case studies for the incorporation of BIM-based daylighting simulations and analyses into the design studio. With a carefully devised studio setting and the participation of interdisciplinary consultants, the experimental case studies simulated an integrated design process based on rapid information exchange and collaborative decision making. The implemented method enables students to use BIM models and daylighting simulations as significant sources of design information for performance-based architectural design.
wos	WOS:000340629400053
keywords	BIM; daylighting simulations; Collaborative design; Integration
series	eCAADe
email
last changed	2022/06/07 08:00

_id	cf2017_360
id	cf2017_360
authors	Ofluo?lu, Salih
year	2017
title	BIM-based Interdisciplinary Collaborations in a Student Project Competition
source	Gülen Çagdas, Mine Özkar, Leman F. Gül and Ethem Gürer (Eds.) Future Trajectories of Computation in Design [17th International Conference, CAAD Futures 2017, Proceedings / ISBN 978-975-561-482-3] Istanbul, Turkey, July 12-14, 2017, pp. 360-373.
summary	Architecture is a profession that requires collaboration among professionals from various fields. Despite the important nature of these interdisciplinary collaborations, architecture students rarely obtain the opportunity to learn about the work areas of other stakeholders and the practice of working together. In all sectors there is a growing need for professionals who possess in-depth knowledge in their own disciplines and also develop an understanding about other related disciplines. In a setting of a student project competition, this article examines how students from various AEC fields collaborate using BIM as a common data environment and emphasizes several considerations for implementing interdisciplinary collaborations in curriculums of architecture schools in students’ perspective.
keywords	Interdisciplinary Collaborations, Architectural Design Studio, BIM, Building Information Modeling
series	CAAD Futures
email
last changed	2017/12/01 14:38

_id	caadria2021_213
id	caadria2021_213
authors	Oghazian, Farzaneh and Vazquez, Elena
year	2021
title	A Multi-Scale Workflow for Designing with New Materials in Architecture: Case Studies across Materials and Scales - Case studies across materials and scales
doi	https://doi.org/10.52842/conf.caadria.2021.1.533
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. 533-542
summary	In this paper, we present a workflow developed for designing with and scaling-up new materials in architecture through an iterative cycle of materialization and testing. The framework establishes a connection between design requirements and form, taking advantage of different scales in new materials known as micro, meso, and macroscale in the process of design/manufacture. Different scales when dealing with material systems-especially in those that possess some level of uncertainty in their behavior from the formation process-make it challenging to deal with the different material variables controlled at each scale. This paper presents a brief review of existing design workflows centered on material properties. We then discuss case studies and argue for a multi-scale approach for design. Finally, we present the workflow. By implementing the workflow on two case studies, we answer how we can include material scales and their embedded properties as the central part of the design/manufacture process to aid in implementing new materials in architecture. The case studies are a responsive skin system and a free-standing tensile structure incorporating 3D printed wood filament and knitted yarn as the primary material.
keywords	material computation; material-based design; wood 3D printing; knitting; multi-scale workflow
series	CAADRIA
email
last changed	2022/06/07 07:58

_id	caadria2022_100
id	caadria2022_100
authors	Oghazian, Farzaneh, Brown, Nathan and Davis, Felecia
year	2022
title	Calibrating a Formfinding Algorithm for Simulation of Tensioned Knitted Textile Architectural Models
doi	https://doi.org/10.52842/conf.caadria.2022.1.111
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. 111-120
summary	This paper presents an optimization-based calibration process for tuning a digital formfinding algorithm used with knitted textile materials in architectural tension structures. 3D scanning and computational optimization are employed to accurately approximate a physical model in a digital workflow that can be used to establish model settings for future exploration within a knit geometric typology. Several aspects of the process are investigated, including different optimization algorithms and various approaches to data extraction. The goal is to determine the appropriate optimization method and data extraction, as well as automate the process of adjusting formfinding settings related to the length of the meshes associated with the knitted textile behavior. The calibration process comprises three steps: extract data from a 3D scanned model; determine the bounds of formfinding settings; and define optimization variables, constraints, and objectives to run the optimization process. Knitted textiles made of natural yarns are organic materials and when used at the industrial level can satisfy DSG 9 factors to promote sustainable industrialization and foster innovation in building construction through developing sustainable architectural systems. The main contributions of this paper are calibrated digital models of knitted materials and a comparison of the most effective algorithms and model settings, which are a starting point to apply this process to a wider range of knit geometries. These models enhance the implementation and further development of novel architectural knitted systems.
keywords	Tensioned Knitted Textiles, Computational Design, Formfinding, Calibrating, Optimization, SDG 9
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	acadia22_326
id	acadia22_326
authors	Oghazian, Farzaneh; Moradzadeh, Sam; Davis, Felicia
year	2022
title	Form-finding of Architectural Knitted Tensioned Structures
source	ACADIA 2022: Hybrids and Haecceities [Proceedings of the 42nd Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9860805-8-1]. University of Pennsylvania Stuart Weitzman School of Design. 27-29 October 2022. edited by M. Akbarzadeh, D. Aviv, H. Jamelle, and R. Stuart-Smith. 326-335.
summary	This study discusses the form-finding process of tensile structures and specially knitted tensioned structures. The performance of different plugins in Grasshopper is investigated for behavioral simulation of architectural knitted tensioned structures. Whereas multi-directionality and flexibility are the main characteristics of knitted textiles and allow these materials to be used to develop more complex architectural shapes, such characteristics also make digital simulation of knitted textiles more challenging. We explore the extent to which available tools can assist during the design process.
series	ACADIA
type	paper
email
last changed	2024/02/06 14:00

_id	acadia11_284
id	acadia11_284
authors	Ogrydziak; Luke
year	2011
title	Tetrahedron Cloud
doi	https://doi.org/10.52842/conf.acadia.2011.284
source	ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 284-291
summary	The research project, tetrahedron cloud, explores agent-based stochastic behavior as a design tool. It investigates the possibilities for producing volumetric tetrahedral meshes based on the interactions of individual stochastic agents. The research situates itself at the intersection of the visual arts, the physical sciences, and computer science. The basic interest in stochastics comes from the visual arts; the growth simulation approach is borrowed from the natural sciences; and the use of a tetrahedral mesh within C++ comes from computer science. But more generally, the project focuses on architecture’s ongoing engagement with stochastic systems. By embedding extremely specific tendencies within an agent’s behavior, while also allowing for stochastic variation, we can create larger systems that are both in and out of our “control”. This sidesteps the typical limitations of many computational geometry and parametric methods, where there is often an overly deterministic relationship between the input and output of a given system. Such a shift from optimization to behavior inevitably brings up troubling questions of style. Abandoning the search for a “best” solution, or even the articulation of the criteria for such a task, re-opens computational architecture at its deepest levels as a site for design speculation.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:58

_id	11cb
id	11cb
authors	Oguzhan Özcan
year	2004
title	MATHEMATICS AND DESIGN EDUCATION
source	Proceedings of the Fourth International Conference of Mathematics & Design, Special Edition of the Journal of Mathematics & Design, Volume 4, No.1, pp. 199-203.
summary	Many people believe that mathematical thought is an essential element of creativity. The origin of this idea in art dates back to Plato. Asserting that aesthetics is based on logical and mathematical rules, Plato had noticed that geometrical forms were “forms of beauty” in his late years. Unlike his contemporaries, he had stressed that the use of geometrical forms such as lines, circles, planes, cubes in a composition would aid to form an aesthetics. The rational forms of Plato and the rules of geometry have formed the basis of antique Greek art, sculpture and architecture and have influenced art and design throughout history in varying degrees. This emphasis on geometry has continued in modern design, reflected prominently by Kandinsky’s geometric classifications . Mathematics and especially geometry have found increasing application in the computer-based design environment of our day. The computer has become the central tool in the modern design environment, replacing the brush, the paints, the pens and pencils of the artist. However, if the artist does not master the internal working of this new tool thoroughly, he can neither develop nor express his creativity. If the designer merely learns how to use a computer-based tool, he risks producing designs that appear to be created by a computer. From this perspective, many design schools have included computer courses, which teach not only the use of application programs but also programming to modify and create computer-based tools. In the current academic educational structure, different techniques are used to show the interrelationship of design and programming to students. One of the best examples in this area is an application program that attempts to teach the programming logic to design students in a simple way. One of the earliest examples of such programs is the Topdown Programming Shell developed by Mitchell, Liggett and Tan in 1988 . The Topdown system is an educational CAD tool for architectural applications, where students program in Pascal to create architectural objects. Different examples of such educational programs have appeared since then. A recent fine example of these is the book and program called “Design by Number” by John Maeda . In that book, students are led to learn programming by coding in a simple programming language to create various graphical primitives. However, visual programming is based largely on geometry and one cannot master the use of computer-based tools without a through understanding of the mathematical principles involved. Therefore, in a model for design education, computer-based application and creativity classes should be supported by "mathematics for design" courses. The definition of such a course and its application in the multimedia design program is the subject of this article.
series	other
type	normal paper
email
last changed	2005/04/07 15:36

_id	2006_618
id	2006_618
authors	Oh, Sooyeon and Yutaka Kidawara
year	2006
title	A real-space navigation system based on ubiquitous technology
doi	https://doi.org/10.52842/conf.ecaade.2006.618
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 618-625
summary	In next-generation networking environments, ubiquitous networks will be available both indoors and outdoors. Various devices will be ubiquitously embedded in the surrounding environment, such as buildings and urban spaces. We will be able to browse digital contents on ubiquitous networks anywhere and at anytime. In our research, we have proposed several content-processing mechanisms for use in environment-enabled collaborative acquisition of embedded digital content in the real world situations. We have developed a network management device that makes it possible to acquire embedded content using coordinated ubiquitous devices. We have also developed two prototype systems using these devices. In this paper, we describe the implementation of a prototype system that can share 3D objects in a virtual 3D space based on a real-space environment. This system can be used not only as a virtual 3D browser in a private area, but also as an interactive digital poster in a public area. We tested our system in real situation, and explore the feasibility of applying our system in a ubiquitous environment.
keywords	Ubiquitous technology; Navigation; Collaborative service; Embedded digital content; Real space
series	eCAADe
email
last changed	2022/06/07 07:58

_id	2005_573
id	2005_573
authors	Oh, Sooyeon, Tanaka, Katsumi and Sasada, Tsuyoshi
year	2005
title	3D Digital Archive Experience for Historical Architectures
doi	https://doi.org/10.52842/conf.ecaade.2005.573
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 573-580
summary	Digital archives that use 3D CG models, for example, relating to historical architecture and archaeological sites, are now commonly created for a wide range of purposes. Unlike actually visiting historical architecture, access to digital archives and browsing of their content are computer-related. Thus, users cannot easily gain a deep understanding of the content and are less likely to truly enjoy it. Therefore, in this paper, we propose a method to support collaborative experiencing of 3D digital archives related to historical architecture. To achieve this goal, we developed a prototype system for a 3D digital archive of historical architecture using VR technology. The system offers an interactive interface.
keywords	3D Digital Archive; Experience; Comparison; VR
series	eCAADe
email
last changed	2022/06/07 07:58

_id	sigradi2005_293
id	sigradi2005_293
authors	Oh, Sooyeon; Wookhyun Yeo, Katsumi Tanaka
year	2005
title	Comparative Navigation System for Collaborative Architectural Design
source	SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 1, pp. 293-299
summary	As information technology continues to evolve, it is affecting all creative art forms by providing new tools and surroundings, such as virtual environments. 3D real-time simulation environments strongly support communication and navigation, enabling users to collaborate on designs using centralized or distributed environments. The persons concerned must understand the proposed design. Systems that help them gain this understanding are therefore required. An effective concept for gaining understanding is comparison. However, comparing one design proposal with another using existing systems is difficult because the users must consider their viewpoints separately. In this paper, we describe the concepts, strategies, and functions of a 3D virtual design environment for collaborative, real-time architectural design that is based on our 3D comparative navigation system and real-time simulation technology. We also evaluate the advantages and disadvantages of using this design environment to support collaborative architectural design.
series	SIGRADI
email
last changed	2016/03/10 09:56

_id	caadria2008_19_session3a_161
id	caadria2008_19_session3a_161
authors	Oh, Yeonjoo; Mark D Gross, Ellen Yi-Luen Do
year	2008
title	Computer-aided Critiquing systems Lessons Learned and New Research Directions
doi	https://doi.org/10.52842/conf.caadria.2008.161
source	CAADRIA 2008 [Proceedings of the 13th International Conference on Computer Aided Architectural Design Research in Asia] Chiang Mai (Thailand) 9-12 April 2008, pp. 161-167
summary	A critiquing system helps designers improve their design artifacts by providing feedback. Computer-aided critiquing systems have been built in many fields and provide us with useful lessons. In this paper we analyze existing critiquing systems in terms of (1) critiquing process, (2) critiquing rules, and (3) intervention techniques. Based on this analysis, we suggest new research directions for critiquing systems in the domain of architectural design.
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	caadria2015_176
id	caadria2015_176
authors	Oh, Youngeun and Hyunsoo Lee
year	2015
title	Perceived Emotional Effects of Digital Pattern in Façade Design
doi	https://doi.org/10.52842/conf.caadria.2015.623
source	Emerging Experience in Past, Present and Future of Digital Architecture, Proceedings of the 20th International Conference of the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA 2015) / Daegu 20-22 May 2015, pp. 623-630
summary	This study raises the question of what the emotional significance of the digital patterns has and attempts to provide an answer to such a question. The purpose of this study is to propose a direction to effectively support the façade designs of buildings by understanding the emotive design characteristics of the patterns. This study explains the design patterns on façade designs. There are five types of digital patterns which include applied patterns, perforated patterns, layered patterns, cast patterns, and tiled patterns. Among those patterns, perforated patterns are focused in further detail. This study deals with identifying emotional effects of perforated design patterns. The emotional word ‘asymmetrical’ and ‘irregular’ shows the high average of the emotional value. In the bipolar adjectives, the high emotional value is ‘irregular-regular’ and ‘asymmetrical-symmetrical’. Therefore, the final design characteristics of the perforated patterns are ‘regularity’ and ‘symmetry’. This means to be able to use the perforated patterns in order to be perceived a building façade design as the regular and symmetrical emotional effect. In this paper, it is worth analyzing design characteristics of a building façade by the support of the digital technologies and discussing the utilization of design characteristics derived. This study has contributed to the process and method of deriving the analysis results.
keywords	Façade Design; Digital Pattern; Perforated Pattern; Emotional Effects
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	ddss2004_ra-193
id	ddss2004_ra-193
authors	Ohgai, A., Y. Gohnai, S. Ikaruga, M. Murakami, and K. Watanabe
year	2004
title	Japan Cellular Automata Modeling for Fire Spreading as a Tool to Aid CommunityBased Planning for Disaster Mitigation
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Recent Advances in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Kluwer Academic Publishers, ISBN: 1-4020-2408-8, p. 193-209
summary	As a tool to support collaboration in community-based planning for disaster mitigation in Japanese old wooden built-up areas, we attempt to develop a fire spreading simulation model incorporated a fire fighting activity using Cellular Automata (CA). The proposed model can deal with the process of fire spreading in a building that traditional models can not represent. Whether or not fire can spread is based on a stochastic calculation process to reproduce uncertain fire spreading. The errors caused by the stochastic factor are analyzed by carrying out simulation two or more times under the same condition. Moreover, the reproductivity of the model is examined by comparing simulation results with actual fire records.
keywords	Community-Based Planning for Disaster Mitigation, Fire Spreading, Fire Fighting Activity, Cellular Automata Modeling, Planning Support Tool
series	DDSS
last changed	2004/07/03 22:13

_id	24eaea2001
id	24eaea2001
authors	Ohno, R., Katayama, M., Komatsuzaki, T. and Soeda, M.
year	2002
title	Development of a Visual Simulation System Synchronized with Walking Motion - An application for a study of distance perception
source	Environmental Simulation - New Impulses in Planning Processes [Proceedings of the 5th European Architectural Endoscopy Association Conference / ISBN 3-922602-85-1]
summary	Conventional visual simulators allow observers to move in the simulated space by using a mouse or a joy-stick without the kinesthetic feeling of motion. However, the link between visual image and body motion is important to perceive the environment, especially when people are walking. In this paper, a visual simulation system was designed to synchronize the subject's walking motion on a treadmill with the video image shown on a HMD. In order to detect the walking motion, sensors were attached to both subject’s ankles. According to the detected motion, the treadmill rotates and a CCD camera moves in a model space. Because of the sensors’ low sensitivity and the time lag between the detected motion and treadmill rotation, the subjects couldn’t walk smoothly. Therefore, the walking speed which synchronizes with the video image was kept constant for each subject and the experimenter started up and stopped the simulator. The validity of this simulation system was examined by comparing the accuracy of distance estimation using the new simulator with that using the conventional system without walking motion. The “distance reproduction” method was applied to measure the perceived distance: subjects walked 25 meter in a real setting without being told the distance, and were asked to move the same distance in different conditions. Since the distance estimation became accurate in the condition with the walking motion, the validity of this simulator was secured. The following experiment was intended to investigate the influence of physical environmental features on perceived distance by using the simulation system. We operated some features using a scale model of a route and examined their influences. Subjects were asked to "walk" through a path consisted of two spaces with different physical features, and to respond by showing the proportion of the length of those two spaces. The result revealed that the distance of a narrower and lower ceiling path where people perceive clearer line perspective and faster optical flow tends to be perceived longer.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	eaea2003_08-ohno
id	eaea2003_08-ohno
authors	Ohno, R., Soeda, M. and Nakashima, K.
year	2004
title	The Effectiveness of Design Guideline Regulations for Improving Streetscapes
source	Spatial Simulation and Evaluation - New Tools in Architectural and Urban Design [Proceedings of the 6th European Architectural Endoscopy Association Conference / ISBN 80-227-2088-7], pp. 21-27
summary	Municipal governments or developers make design guidelines to create harmonious streetscapes in new towns. The regulations, however, are often based on arbitrary decisions without any empirical research. The present study employed a visual simulation system to test the effects of such physical features of the buildings as color, height, flatness of the building façade and its recess from the street on pedestrians’ impressions of the place. Thirty subjects were asked to rate their impressions of “order”, “simple”, and to evaluate the atmosphere after experiencing the simulated scenes. The results revealed some relations between the physical features and the pedestrians’ responses.
series	EAEA
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	eaea2005_151
id	eaea2005_151
authors	Ohno, Ruyzo
year	2006
title	Seat preference in public squares and distribution of the surrounding people: An examination of the validity of using visual simulation
source	Motion, E-Motion and Urban Space [Proceedings of the 7th European Architectural Endoscopy Association Conference / ISBN-10: 3-00-019070-8 - ISBN-13: 978-3-00-019070-4], pp. 151-163
summary	Public squares are shared by people who use them for various purposes. When people choose seats in a square, they unconsciously evaluate not only the physical characteristics of the space but also the distribution of others already present (Hall, 1966; Sommer, 1969; Whyte, 1988). Knowing the hidden rules of this behaviour will be important in designing squares that remain comfortable even in crowded situations. Most past studies of seat choice preference have reported on statistical tendencies derived from observations of subject behavior in actually existing sites (i.e., Abe, 1997; Imai, 1999; Kawamoto, 2003). However, they provide no clear theoretical model for explaining the basic mechanisms regulating such behaviour. The present study conducts a series of experiments in both real and virtual settings in order to extract quantitative relationships between subjects’ seat preferences and the presence of nearby strangers and to clarify what factors influence their seat choices.
series	EAEA
type	normal paper
email
more	http://info.tuwien.ac.at/eaea
last changed	2008/04/29 20:46

_id	ebbf
authors	Ohno, Ryozo
year	1995
title	Street-scape and Way-finding Performance
source	The Future of Endoscopy [Proceedings of the 2nd European Architectural Endoscopy Association Conference / ISBN 3-85437-114-4]
summary	In this study, it was hypothesized that people’s performance of way-finding depends on the characteristics of street-scapes, i.e., the more visual information exists the easier people find their own ways. This relationship was investigated by an experiment using an environmental simulator and analysis of the subject’s behavioral data recorded by the simulation system. Three scale models (1/150) of identical maze patterns (300m x 300m) which have different street-scapes were created and set in the simulator, in which an endoscope connected to CCD color TV camera controlled by a system operated by a personal computer. Three types of streets are: (1) having no characteristics with monotonous surface, (2) having characteristics on each corner with different buildings, (3) having characteristics along the streets with trees, columns or fences. The simulator allows a subject to move through the scale models and looking around, using a “joy-stick“ for viewing the scene as projected on 100-inch CCTV screen. The control system of the simulator records all signals generated by the “joy-stick“ every 0.01 second, and thus exact position within the model space and the viewing direction at given moment can be stored in the computer memory, which can be used to analyze the subject’s behavior. The task of a subject was to find the way which was previously shown by the screen. Three male and three female subjects for each of three street types, for a total of eighteen subjects participated in the experiment. An analysis of the trace of movements and viewing directions generally supported the hypothesis that the street with visual characteristics were easier to memorize the route although there was a large difference in performance among subjects. It was also noted that there were three different strategies of way-finding according to the subject: one group of subjects seemed to rely on well structured knowledge of the route, i.e., the cognitive map, and the other group seemed to rely on incoming visual information of the changing scenes, and the last group seemed to find the way using both the cognitive map and visual information depending on the situations.
keywords	Architectural Endoscopy, Real Environments
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	29f3
authors	Ohno, Ryuzo and Aoki, Hirofumi
year	1999
title	Development of an Interactive Simulation System for Environment-Behavior Study
source	Simulation of Architectural Space - Color and Light, Methods and Effects [Proceedings of the 4rd European Architectural Endoscopy Association Conference / ISBN 3-86005-267-5] Dresden (Germany), 29 September - 1 October 1999, pp. 36-49
summary	An important recent development in the simulation techniques was the changes in the mode of presentation: from passive mode to active one. It is now possible to present an image according to the observer’s voluntary movement of body and head by means of a head-mounted display. Such interactive simulation system, which allows people to observe what they like to see, is suitable to study environmental perception, because active attention is essential to manipulate enormous information in the environment. The present paper reports two case studies in which an interactive simulation system was developed to test psychological impact of interior and exterior spaces: the case study 1 intended to clarify the effect of the disposition of transparent and opaque surfaces of a room on the occupants’ „sense of enclosure“, the case study 2 intended to make clear some physical features along a street which are influential for changing atmosphere. In addition to the empirical research, an attempt to develop a new simulation system which uses both analogue and digital images is briefly reported, and a preliminary experiment was conducted to test the performance of the simulation system in which such movable elements as pedestrians and cars generated by real-time CG were overlaid on the video image of a scale model street.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	c308
authors	Ohno, Ryuzo and Hata, Tomohiro
year	1993
title	The Effect of Spatial Structure on Visual Search Behavior
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 89-98
summary	People’s voluntary movement through an environment is essential for their comprehension of three dimensional space. It may be hypothesized that they move and look around in order to pick up wanted information at the time. This study investigated the following more specific hypotheses by an experiment using a user-controlled space-sequence simulator and the analysis of the subjects’ behavioral data recorded by the simulation system: (1) The strategy of visual search behavior (body movement and viewing direction) is influenced by spatial structure (form and organization). (2) The strategy can be explained by the amount of visual information in the environment, i.e., people move and look in a certain direction in order to maximize effective information at a given moment and position. - If these hypotheses are supported, we can predict people’s behavior in an unfamiliar place on the basis of the spatial structure.
keywords	Architectural Endoscopy
series	EAEA
email
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	ohno02_paper_eaea2007
id	ohno02_paper_eaea2007
authors	Ohno, Ryuzo; Jaeho Ryu
year	2008
title	Development of a Portable Virtual-Reality System for Disaster Education
source	Proceedings of the 8th European Architectural Endoscopy Association Conference
summary	Given that the probability of a catastrophic earthquake occurring is quite high in Japan compared to other countries; major cities like Tokyo operate many disaster-education facilities for informing citizens about earthquake preparedness. Since an earthquake occurs suddenly with almost no time to react, daily preparation plays a greater role in reducing damage than for other types of disasters. In fact, statistics from the Kobe earthquake in 1995 show the largest cause of injury to have been falling furniture, something that could have been prevented with proper precautionary measures.
keywords	virtual reality, disaster, earthquake, education
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2008/04/29 20:46

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