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	caadria2005_b_3c_e
id	caadria2005_b_3c_e
authors	Yasushi Onohara, Tatsuya Kishimoto
year	2005
title	VR System by the Combination of HMD and Gyro Sensor for Streetscape Evaluation
doi	https://doi.org/10.52842/conf.caadria.2005.123
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 2, pp. 123-128
summary	In this paper, Virtual Reality System for Streetscape and Street space evaluation using the Virtual Reality system are concerned. Light and small VR system using the combination of HMD and 3 axes gyro sensor, which provides view stereoscopic environments and enable us to view all direction of streetscape, is presented. Next, the adaptability of this system for the streetscape and space evaluation is confirmed through two experiments. The sense of Height, Volume, Amenity, Depth, and Activeness of different stand points and those by different streets which have different width are investigated and several features of sense of Street space are clarified by the VR system.
series	CAADRIA
email
last changed	2022/06/07 07:57

_id	caadria2005_a_8b_b
id	caadria2005_a_8b_b
authors	Wingly Shih
year	2005
title	VR-CAVE as a multimodal interaction environment
doi	https://doi.org/10.52842/conf.caadria.2005.413
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 1, pp. 413-420
summary	This research focused on building a software system on VR-CAVE for multiple users’ interaction with various media, alongside simultaneous communication amongst users. While all users interact with virtual objects in VR-CAVE concurrently, by means of several kinds of input device, including conventional mouse and keyboard, PDAs, mobile phones and laptops, users can communicate with each other through the most natural way at the same time. The system prototype was implemented and still in development for extension on the strength of supporting more input device and media formats. Further research would make VR-CAVE not only a representing tool, but a platform for design communication and evaluation, or a collaborative design environment.
series	CAADRIA
email
last changed	2022/06/07 07:57

_id	caadria2005_a_2b_b
id	caadria2005_a_2b_b
authors	Sooyeon Oh, Rieko Kadobayashi, Tsuyoshi Sasada, Katsumi Tanaka
year	2005
title	Collaborative Project To Conserve and Personalize the 3D Digital Archives of Historical Architecture
doi	https://doi.org/10.52842/conf.caadria.2005.179
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 1, pp. 179-187
summary	In this paper, we will discuss methods for supporting a collaborative experience of 3D digital archives of historical architecture. We will use a prototype system for 3D digital archives of historical architecture using VR technology. Moreover, a prototype system using web technology such as Weblogs will also be used. In addition, we are refining the present system by applying it to the Turkish Republic Gemiler Island Church Restoration Project.
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	791f
id	791f
authors	Stellingwerff, M. C.
year	2005
title	VIRTUAL CONTEXT - INVESTIGATING THE CHARACTERISTICS AND OPPORTUNITIES OF DIGITAL VISUALISATION MEDIA FOR SITUATED APPROACHES TO ARCHITECTURAL DESIGN IN AN URBAN ENVIRONMENT
source	Delft University Press
summary	This research initiative addresses the issue of Design in relation to Virtual Context. Central to this study are the innovative potentials and instrumental opportunities of computer based media techniques, capable of generating interactive models and changing perspectives for the benefit of urban and architectural design. The ambition was to not only make a contribution to the existing body of knowledge concerning digital technologies and their applications, but explore theoretical conditions which might help define and stimulate further study. From the outset, the focus was on furthering the opportunities for computer based representation media in creative design. On the basis of a series of explorative studies the subject of this research was targeted: the issue of Design in Context, or more specifically: Design(ing) in a Virtual Context. During the process there was a marked shift in the conception of the subject from – more or less immersive – VR technologies in the direction of approaches which might be expected to become readily available in practice and education and could be effective in actual design processes. This insight also brought about a shift in emphasis from realism per-se towards creating a sense of situatedness. The design representation system which was developed was intended to not just allow for one type of model view, but to afford an array of different views, from which the designer would be able to choose freely, depending on the phase and focus of design as well as personal preferences. A series of interface prototypes and support tools were developed especially and successively tested experimentally. For the intended final design driven experimental study, different virtual context models were considered. Eventually, an integral – purely fictitious – design ‘environment’ was constructed in the computer, so that the workings of the proposed system and its components would be tested systematically. A conscious choice was made for an in depth study, on a relatively modest scale, which would a certain amount of mutual involvement between designer and researcher, to confront the participants with the finer aspects of the proposed system in a relatively short time and to gather detailed data. A half dozen design professionals were invited to participate in a closely monitored experimental exercise. The results of this study therefore do not offer straightforward, indisputable facts, to be considered representative for the design community as a whole, but indicate that the working methods of the individual designers – when discovering aspects of the site, developing and presenting proposals and reflecting on the qualities of represented designs – tend to vary considerably. For this reason the interactive representation system proved to be of value. Participants could express different view preferences, with more or less realistic image modes being used in different phases of their design developments, with varying experiences of situatedness. Some of the design professionals participants were very appreciative of the system’s opportunities, others tended to be more ‘set in their ways’. The results of this experimental study indicate that there may particularly be opportunities for interface applications which are able to function interactively, offering individual designers – as well as others involved in evaluating design proposals – a variety of tools with which to approach specific design artefacts in their changing contexts. Virtual models can play not only an important role as a ‘reminder’ for the designer but also to other parties playing an active role in the design and implementation processes. Interactive environment models are not only promising as exploration tools for existing sites, but could be valuable to test the impact of a design on its location. This could be especially interesting if the site is difficult or impossible to visit or as yet a virtual construction. In addition such an approach might be beneficial for objective comparison and evaluation of design proposals in competitions and in education as well as in on-line collaborative design projects where the context is still in the process of being developed.
series	thesis:PhD
type	normal paper
email
more	http://www.bk.tudelft.nl/users/stelling/internet/
last changed	2005/03/02 22:40

_id	cf2011_p051
id	cf2011_p051
authors	Cote, Pierre; Mohamed-Ahmed Ashraf, Tremblay Sebastien
year	2011
title	A Quantitative Method to Compare the Impact of Design Mediums on the Architectural Ideation Process.
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 539-556.
summary	If we compare the architectural design process to a black box system, we can assume that we now know quite well both inputs and outputs of the system. Indeed, everything about the early project either feasibility studies, programming, context integration, site analysis (urban, rural or natural), as well as the integration of participants in a collaborative process can all be considered to initiate and sustain the architectural design and ideation process. Similarly, outputs from that process are also, and to some extent, well known and identifiable. We are referring here, among others, to the project representations or even to the concrete building construction and its post-evaluation. But what about the black box itself that produces the ideation. This is the question that attempts to answer the research. Currently, very few research works linger to identify how the human brain accomplishes those tasks; how to identify the cognitive functions that are playing this role; to what extent they operate and complement each other, and among other things, whether there possibly a chain of causality between these functions. Therefore, this study proposes to define a model that reflects the activity of the black box based on the cognitive activity of the human brain. From an extensive literature review, two cognitive functions have been identified and are investigated to account for some of the complex cognitive activity that occurs during a design process, namely the mental workload and mental imagery. These two variables are measured quantitatively in the context of real design task. Essentially, the mental load is measured using a Bakan's test and the mental imagery with eyes tracking. The statistical software G-Power was used to identify the necessary subject number to obtain for significant variance and correlation result analysis. Thus, in the context of an exploratory research, to ensure effective sample of 0.25 and a statistical power of 0.80, 32 participants are needed. All these participants are students from 3rd, 4th or 5th grade in architecture. They are also very familiar with the architectural design process and the design mediums used, i.e., analog model, freehand drawing and CAD software, SketchUp. In three experimental sessions, participants were asked to design three different projects, namely, a bus shelter, a recycling station and a public toilet. These projects were selected and defined for their complexity similarity, taking into account the available time of 22 minutes, using all three mediums of design, and this in a randomly manner to avoid the order effect. To analyze the two cognitive functions (mental load and mental imagery), two instruments are used. Mental imagery is measured using eye movement tracking with monitoring and quantitative analysis of scan paths and the resulting number and duration of participant eye fixations (Johansson et al, 2005). The mental workload is measured using the performance of a modality hearing secondary task inspired by Bakan'sworks (Bakan et al.; 1963). Each of these three experimental sessions, lasting 90 minutes, was composed of two phases: 1. After calibrating the glasses for eye movement, the subject had to exercise freely for 3 minutes while wearing the glasses and headphones (Bakan task) to get use to the wearing hardware. Then, after reading the guidelines and criteria for the design project (¬± 5 minutes), he had 22 minutes to execute the design task on a drawing table allowing an upright posture. Once the task is completed, the subject had to take the NASA TLX Test, on the assessment of mental load (¬± 5 minutes) and a written post-experimental questionnaire on his impressions of the experiment (¬± 10 minutes). 2. After a break of 5-10 minutes, the participant answered a psychometric test, which is different for each session. These tests (¬± 20 minutes) are administered in the same order to each participant. Thus, in the first experimental session, the subject had to take the psychometric test from Ekstrom et al. (1978), on spatial performance (Factor-Referenced Cognitive Tests Kit). During the second session, the cognitive style is evaluated using Oltman's test (1971). Finally, in the third and final session, participant creativity is evaluated using Delis-Kaplan test (D-KEFS), Delis et al. (2001). Thus, this study will present the first results of quantitative measures to establish and validate the proposed model. Furthermore, the paper will also discuss the relevance of the proposed approach, considering that currently teaching of ideation in ours schools of architecture in North America is essentially done in a holistic manner through the architectural project.
keywords	design, ideation process, mental workload, mental imagery, quantitative mesure
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	caadria2005_b_5a_b
id	caadria2005_b_5a_b
authors	De-Lun Huang, Shen-Guan Shih
year	2005
title	A Case-Based Decision Support System for Housing Refurbishment
doi	https://doi.org/10.52842/conf.caadria.2005.288x.r0c
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 2, pp. 288-299
summary	Effective communication is a key for ensuring quality of housing refurbishment. This paper provides a framework of decision support system for housing refurbishment that helps designers better communicate with tenants who generally lack expert knowledge and can not express their needs clearly. The framework is constructed using Case-Based Reasoning (CBR) for retrieving past similar cases to meet the challenges and demands of the present refurbishment project at hand. With the help of the system, users can retrieve past cases that match the users’ requirements and revise them to meet current needs. It can also be used as design criteria for evaluating the final product to ensure its conformance with the initial planning. A test case is used to demonstrate the system’s suitability. The effectiveness of this system is supported by a post-experiment evaluation and interview with the tenant concerning his satisfaction on the refurbishment.
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	caadria2005_b_5a_c
id	caadria2005_b_5a_c
authors	Julie R. Jupp, Ricardo Sosa, John S. Gero
year	2005
title	Generating Innovative Designs Using Qualitative Spatial Reasoning
doi	https://doi.org/10.52842/conf.caadria.2005.300
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 2, pp. 300-311
summary	In this paper we present a generative system supported by qualitative spatial reasoning. The approach incorporates qualitative modelling in an evolutionary system to automate the design of novel solutions assessed as compatible with a set of existing designs. The system is presented through an application of door design and demonstrates how development guidelines aimed at preserving a building or streetscape’s visual character can be met by novel designs. The results presented in this paper illustrate the generation of novel designs that intuitively capture key characteristics of the corpus of existing designs at a qualitative level. This approach provides the basis for new kinds of design tools.
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	cf2005_1_35_162
id	cf2005_1_35_162
authors	PALMON Orit, OXMAN Rivka, SHAHAR Meir and WEISS Patrice L.
year	2005
title	Virtual Environments in Design and Evaluation
source	Computer Aided Architectural Design Futures 2005 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-3460-1] Vienna (Austria) 20–22 June 2005, pp. 145-154
summary	One of the major challenges facing the professionals involved in the home modification process is to succeed in adapting the environments in a way that enables an optimal fit between the individual and the setting in which he or she operates. The challenge originates primarily from the fundamental characteristic of design - one can see and test the final result of home modifications only after they have been completed. The goal of this study was to address this problem by developing and evaluating an interactive living environments model, HabiTest, which will facilitate the planning, design and assessment of optimal home and work settings for people with physical disabilities. This paper describes the HabiTest tool, an interactive model that has been implemented via an immersive virtual reality system which displays three-dimensional renderings of specific environments, and which responds to user-driven manipulations such as navigation within the environment and alteration of its design. Initial results of a usability evaluation of this interactive environment by users are described.
keywords	accessibility, environmental-modifications, 3D simulation, barrier-free design
series	CAAD Futures
email
last changed	2006/11/07 07:27

_id	cf2011_p115
id	cf2011_p115
authors	Pohl, Ingrid; Hirschberg Urs
year	2011
title	Sensitive Voxel - A reactive tangible surface
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 525-538.
summary	Haptic and tactile sensations, the active or passive exploration of our built surroundings through our sense of touch, give us a direct feeling and detailed information of space, a sense of architecture (Pallasmaa 2005). This paper presents the prototype of a reactive surface system, which focuses its output on the sense of touch. It explains how touch sensations influence the perception of architecture and discusses potential applications that might arise from such systems in the future. A growing number of projects demonstrate the strong impact of interaction design on the human senses and perception. They offer new ways of sensing and experiencing architectural space. But the majority of these interaction concepts focus on visual and auditory output-effects. The sense of touch is typically used as an input generator, but neglected as as a potential receiver of stimuli. With all the possibilities of sensors and micro-devices available nowadays, there is no longer a technical reason for this. It is possible to explore a much wider range of sense responding projects, to broaden the horizon of sensitive interaction concepts (Bullivant 2006). What if the surfaces of our surroundings can actively change the way it feels to touch them? What if things like walls and furniture get the ability to interactively respond to our touch? What new dimensions of communication and esthetic experience will open up when we conceive of tangibility in this bi-directional way? This paper presents a prototype system aimed at exploring these very questions. The prototype consists of a grid of tangible embedded cells, each one combining three kinds of actuators to produce divergent touch stimuli. All cells can be individually controlled from an interactive computer program. By providing a layering of different combinations and impulse intensities, the grid structure enables altering patterns of actuation. Thus it can be employed to explore a sort of individual touch aesthetic, for which - in order to differentiate it from established types of aesthetic experiences - we have created the term 'Euhaptics' (from the Greek ŒµœÖ = good and Œ¨œÄœÑœâ = touch, finger). The possibility to mix a wide range of actuators leads to blending options of touch stimuli. The sense of touch has an expanded perception- spectrum, which can be exploited by this technically embedded superposition. The juxtaposed arrangement of identical multilayered cell-units offers blending and pattern effects of different touch-stimuli. It reveals an augmented form of interaction with surfaces and interactive material structures. The combination of impulses does not need to be fixed a priori; it can be adjusted during the process of use. Thus the sensation of touch can be made personally unique in its qualities. The application on architectural shapes and surfaces allows the user to feel the sensations in a holistic manner ‚Äì potentially on the entire body. Hence the various dimensions of touch phenomena on the skin can be explored through empirical investigations by the prototype construction. The prototype system presented in the paper is limited in size and resolution, but its functionality suggests various directions of further development. In architectural applications, this new form of overlay may lead to create augmented environments that let inhabitants experience multimodal touch sensations. By interactively controlling the sensual patterns, such environments could get a unique ‚Äútouch‚Äù for every person that inhabit them. But there may be further applications that go beyond the interactive configuration of comfort, possibly opening up new forms of communication for handicapped people or applications in medical and therapeutic fields (Grunwald 2001). The well-known influence of touch- sensations on human psychological processes and moreover their bodily implications suggest that there is a wide scope of beneficial utilisations yet to be investigated.
keywords	Sensitive Voxel- A reactive tangible surface
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	2005_639
id	2005_639
authors	Zupancic Strojan, Tadeja and Mullins, Michael
year	2005
title	Excellence Criteria of Science in Architecture
doi	https://doi.org/10.52842/conf.ecaade.2005.639
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 639-646
summary	The relation of the architectural community to the generally established scientific rules always seems to be problematic. The same refers to the general trend of increasing quantity by neglecting quality at the same time. Nevertheless, the present situation of the rising quantification in comparison to the wider context calls for special attention. The extent of socio-spatial consequences requires the identification of the wider system references, useful to introduce the lacking cultural criteria into the general evaluation system. Combined with the identification of the ‘scientific’ level in architecture, this could change the perception that architectural design lacks its scientific tradition. Both may stimulate architects to take their own scientific traditions more seriously, enhancing the tradition itself. The paper contributes to the discussion about the excellence criteria of science in architecture with the explanation of the ‘formal’ proofs of relevance and vitality of architectural research to replace the favoritised ‘impact factor’ differentiation, where it is still (or even more intensively) taken as the key criterion of research excellence.
keywords	Database Systems, Communication, Collaborative Design, Prediction and Evaluation
series	eCAADe
type	normal paper
email
last changed	2022/06/07 07:57

_id	sigradi2005_529
id	sigradi2005_529
authors	Bourdakis, Vassilis; Anna Chronaki
year	2005
title	A Social and gendered analysis of the utilization of a VR planning tool for public participation
source	SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 2, pp. 529-534
summary	The paper is a follow-up to earlier work investigating the research hypothesis that Virtual Reality (VR) is nowadays a maturetechnology, suitable for communicating planning ideas. A work in progress involving the redesign of two squares within the urbanfabric of a deprived Athenian neighbourhood is presented. A VR model of existing and proposed layouts was constructed, focusingon accuracy of visualisation, ease of navigation, online spatialized commenting mechanism and ease of access. User groups weresupported with appropriate training—researchers had the opportunity to observe the reactions of people and deliver questionnairesthat help identify problem areas related to technophobia, disbelief, past knowledge, communication skills, understanding of thevisualisation system used, usability of the navigation system as well as the commenting mechanism. Gender and social exclusionare key issues in this particular multicultural neighbourhood. Collecting demographic data on all participants (age, sex, educationlevel, employment, marital status, etc.) during the commenting process enables a series of analyses testing the ways the system isused.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	cf2011_p135
id	cf2011_p135
authors	Chen Rui, Irene; Schnabel Marc Aurel
year	2011
title	Multi-touch - the future of design interaction
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 557-572.
summary	The next major revolution for design is to bring the natural user interaction into design activities. Graphical User Interfaces (GUI) brought a new approach that was more effective compared to their conventional predecessors. In recent years, Natural User Interfaces (NUI) have advanced user experiences and multi-touch and gesture technologies provide new opportunities for a variety of potential uses in design. Much attention has been paid to leverage in the design of interactive interfaces. The mouse input and desktop screen metaphors limit the information sharing for multiple users and also delayed the direct interaction for communication between each other. This paper proposes the innovative method by integrating game engine ‘Unity3D’ with multi-touch tangible interfaces. Unity3D provides a game development tool as part of its application package that has been designed to let users to focus on creating new games. However, it does not limit the usage of area to design additional game scenarios since the benefits of Unity3D is allowing users to build 3D environments with its customizable and easy to use editor, graphical pipelines to openGL (http://unity3d.com/, 2010 ). It creates Virtual Reality (VR) environments which can simulates places in the real world, as well as the virtual environments helping architects and designers to vividly represent their design concepts through 3D visualizations, and interactive media installations in a detailed multi-sensory experience. Stereoscopic displays advanced their spatial ability while solving issues to design e.g. urban spaces. The paper presents how a multi-touch tabletop can be used for these design collaboration and communication tasks. By using natural gestures, designers can now communicate and share their ideas by manipulating the same reference simultaneously using their own input simultaneously. Further studies showed that 3Dl forms are perceived and understood more readily through haptic and proprioceptive perception of tangible representations than through visual representation alone (Gillet et al, 2005). Based on the authors’ framework presented at the last CAADFutures, the benefits of integrating 3D visualization and tactile sensory can be illustrated in this platform (Chen and Wang, 2009), For instance, more than one designer can manipulate the 3D geometry objects on tabletop directly and can communicate successfully their ideas freely without having to waiting for the next person response. It made the work more effective which increases the overall efficiency. Designers can also collect the real-time data by any change they make instantly. The possibilities of Uniy3D make designing very flexible and fun, it is deeply engaging and expressive. Furthermore, the unity3D is revolutionizing the game development industry, its breakthrough development platform for creating highly interactive 3D content on the web (http://unity3d.com/ , 2010) or similar to the interface of modern multimedia devices such as the iPhone, therefore it allows the designers to work remotely in a collaborative way to integrate the design process by using the individual mobile devices while interacting design in a common platform. In design activities, people create an external representation of a domain, often of their own ideas and understanding. This platform helps learners to make their ideas concrete and explicit, and once externalized, subsequently they reflect upon their work how well it sits the real situation. The paper demonstrates how this tabletop innovatively replaces the typical desktop metaphor. In summary, the paper addresses two major issues through samples of collaborative design: firstly presenting aspects of learners’ interactions with physical objects, whereby tangible interfaces enables them constructing expressive representations passively (Marshall, 2007), while focussing on other tasks; and secondly showing how this novel design tool allows designers to actively create constructions that might not be possible with conventional media.
keywords	Multi-touch tabletop, Tangible User Interface
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	2005_055
id	2005_055
authors	Moloney, Jules
year	2005
title	Game Engines and Virtual Design Studios
doi	https://doi.org/10.52842/conf.ecaade.2005.055
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 55-62
summary	A discussion of the outcomes from the use of a game engine based collaborative virtual environment for virtual design studios. By way of introduction the use of a game engine is positioned between the high end visualization capabilities of immersive VR, and the high dimensional accuracy of 3D CAD. Software development, which address problems related to content creation and communication lag, are reported. This is supplemented with a more general discussion of the motivations for design collaboration between architectural schools. We confer with other researchers that lack of engagement is more related to pedagogy, then as a result of technical issues. In conclusion we discuss the potential of game play to enhance virtual design studios in terms of engagement and deliberation
keywords	Collaborative Virtual Environments, Game Engines, Pedagogy
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ijac20053108
id	ijac20053108
authors	Mullins, Michael; [Zupancic] Strojan, Tadeja Z.
year	2005
title	Representational Thickness: a quantitative comparison between physical, CAVE and Panorama environments
source	International Journal of Architectural Computing vol. 3 - no. 1, 127-144
summary	This study compares aspects of spatial perception in a physical environment and its virtual representations in a CAVE and Panorama. To measure accuracy of spatial perception, users were asked to look at identical objects in the three environments and then locate them and identify their shape on scaled drawings. Results were then statistically compared for differences. In a discussion of the results, the paper addresses three hypothetical assertions – that depth perception in physical reality and its virtual representations in CAVE and Panorama are quantifiably different; that differences are attributable to prior contextual experience of the viewer; and that design professionals and laypeople have different perceptions of what they see in VR. In conclusion, the concept of 'representational thickness' is suggested by the results.
series	journal
type	normal paper
more	http://www.multi-science.co.uk/ijac.htm
last changed	2007/03/04 07:08

_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_689
id	sigradi2005_689
authors	Ruiz-Rodarte, Rocio; José Larios, Fernando García Cuspinera
year	2005
title	Real Time Visualizing Tools: Description of an experience where game engines and Internet browsers are used as means of exhibition at an archaeological site
source	SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 2, pp. 689-694
summary	This paper presents the use of Virtual Reality (VR) environments as didactic means of exhibition. It approaches VR field by non traditional tools of visualization -as game engines- and describes the process and particular issues faced during its development. The examples shown in this document are part of an archaeological project under current development which faced budget solutions for equipment and its maintenance. The lack of experience outside the traditional VR field (SGI), lead the research team to try different game engines and VRML format in explore solutions to issues as performance, complexity, appearance, visualization, different needs of programming skills, file format compatibility, archiving and promotion applications. The experience delivered to replicate the process for other cultural projects can be useful also to architects and designers that are willing to experiment with VR as means of visualization during different stages of their projects.
series	SIGRADI
email
last changed	2016/03/10 09:59

_id	2005_391
id	2005_391
authors	Suneson, Kaj, Wernemyr, Claes, Westerdahl, Börje and Allwood, Carl Martin
year	2005
title	The Effect of Stereovision on the Experience of VR Models of the External Surroundings and the Interior of a Building
doi	https://doi.org/10.52842/conf.ecaade.2005.391
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 391-398
summary	Virtual reality offers considerable promise with regard to facilitating the building process. A good example is the facilitation of communication between architects and building companies, sellers and buyers or between community planners and the general public. It is often thought that in order to utilise the potential of VR in, for example, the above-mentioned contexts, it is necessary to use fully fledged versions of VR, including stereovision and the possibility of controlling the VR show. However, if a model can also be presented on less advanced equipment and still interpreted in a way that is useful to the viewer it will be possible to distribute the model simply and effectively. This would make it easier to create a more democratic urban planning process compared with if specialised equipment needed to be used and special shows needed to be arranged. In this study we compared the experience of two VR models (a large indoor exhibition hall and an outdoor street in Gothenburg, Sweden) when presented with and without stereovision. When the experience was measured using the Semantic Environmental Scale (the SMB scale, developed by Küller, 1975, 1991), questions on the experience of presence and six other questions on the experience of the models, the results only revealed one indication that stereovision made a difference. This indication was the result for the SMB factor Enclosedness. Suggestions are presented for future research in this area.
keywords	Design Process; Virtual Environments; Human-Computer Interaction; 3D City Modelling; Environmental Simulation
series	eCAADe
email
last changed	2022/06/07 07:56

_id	caadria2005_b_4b_c
id	caadria2005_b_4b_c
authors	Tomohiro Fukuda, Atsuko Kaga, Ryuichiro Nagahama, Nobuyuki Shibano, Tsuyoshi Sasada, Yu-Tung Liu
year	2005
title	The World’s Largest VR-Dome for Collaborative Design
doi	https://doi.org/10.52842/conf.caadria.2005.203
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 2, pp. 203-213
summary	This paper reports on the development of a new VR (Virtual Reality) system with the world’s largest hemispherical screen, which can display high immersive, life-size scale, stereoscopic images. A cluster of PCs is used in master-slave architecture, with 18 slave PCs for rendering left eye and right eye images, and the master for synchronizing the images for stereo view. Contents can be shared with a VR system operating on a notebook with a new VR system developed as part of the same VR toolkit. We apply the system to a real, collaborative architectural design project.
series	CAADRIA
email
last changed	2022/06/07 07:58

_id	2005_373
id	2005_373
authors	Ucelli, Giuliana, Conti, Giuseppe and De Amicis, Raffaele
year	2005
title	Shape Knowledge Embedded in a Collaborative Virtual Design Environment for Architectural Design
doi	https://doi.org/10.52842/conf.ecaade.2005.373
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 373-381
summary	VR-based design environment have been traditionally not connected to companies’ design repositories and knowledge management systems. Till now these tools are mainly used for the initial exploration of innovative and original three-dimensional spaces and curves. Our approach encourages the use of VRbased design environments as design tools from where to reuse design solutions and to access design information, which are stored in internal repositories. This vision goes towards the development of a VR-based integrated design platform. Further, today’s knowledge management systems show evident limitations when dealing with multimedia files and 3D models. In order to overcome this limitation a framework for embedding in our VR-based design environment a Knowledge Management system for multimedia content has been developed and it is here described. Our solution implies the use of annotation languages such as the recent MPEG7 ISO/IEC (Multimedia Content Description Interface) standard for metadata, which is based on the XML language. Data types handled in our system are multimedia formats including text, audio, video, images, and 3D models. The main contribution of our research activity is in providing an innovative and original approach for supporting the design process, which takes advantage both of the visualization and design capabilities of virtual reality technology and of the reuse of design solutions directly in VE, through the retrieval of 3D models and multimedia data from various sources.
keywords	Virtual Reality, Collaborative Architectural Design, Design Reuse, Content Retrieval
series	eCAADe
email
last changed	2022/06/07 07:57

_id	cf2005_1_64_168
id	cf2005_1_64_168
authors	ACHTEN Henri
year	2005
title	Resolving some Ambiguities in Real-time Design Drawing Recognition by means of a Decision Tree for Agents
source	Computer Aided Architectural Design Futures 2005 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-3460-1] Vienna (Austria) 20–22 June 2005, pp. 311-320
summary	In this paper, we present a theoretical study on automated understanding of the design drawing. This can lead to design support through the natural interface of sketching. In earlier work, 24 plan-based conventions of depiction have been identified, such as grid, zone, axial system, contour, and element vocabulary. These are termed graphic units. Graphic units form a good basis for recognition of drawings as they combine shape with meaning. We present some of the theoretical questions that have to be resolved before an implementation can be made. The contribution of this paper is: (i) identification of domain knowledge which is necessary for recognition; (ii) outlining combined strategy of multi-agent systems and online recognition; (iii) functional structure for agents and their organisation to converge on sketch recognition.
keywords	multi-agent system, decision tree, pattern recognition, sketch
series	CAAD Futures
email
last changed	2006/11/07 07:27

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