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CDVE Tables of Contents: 0405060708091011121314

CDVE 2012: International Conference on Cooperative Design, Visualization, and Engineering

Fullname:Cooperative Design, Visualization, and Engineering: 9th International Conference
Editors:Yuhua Luo
Location:Osaka, Japan
Dates:2012-Sep-02 to 2012-Sep-05
Publisher:Springer Berlin Heidelberg
Series:Lecture Notes in Computer Science 7467
Standard No:DOI: 10.1007/978-3-642-32609-7; ISBN: 978-3-642-32608-0 (print), 978-3-642-32609-7 (online); hcibib: CDVE12
Papers:36
Pages:263
Links:Online Proceedings | Conference Home Page
Ambiguity in Multimodal Interaction with Multi-touch Multi-user Graphics Tables BIBAKFull-Text 1-13
  Jean-Paul A. Barthès; Alistair Jones; Atman Kendira; Dominique Lenne; Claude Moulin; Thierry Gidel
Graphics surfaces have a great potential for supporting cooperative work provided they can accommodate a large enough team. However, using large multi-user multi-touch tables leads to a problem of ambiguity as to know who is actually interacting with the table, since gestures are anonymous. This problem is even more severe when one introduces multimodal interaction for example through vocal channels. At UTC we have built a system including a large graphics table and peripheral devices for supporting preliminary cooperative design using multimodal interaction. The paper relates the ambiguity problems that we encountered and how we are trying to solve them.
Keywords: Graphics tables; multi-touch multi-user tabletops; CSCW; cooperative design
WorkMail: Collaborative Document Workflow Management by Email BIBAKFull-Text 14-23
  Davide Gazzè; Mariantonietta Noemi La Polla; Andrea Marchetti; Maurizio Tesconi; Andrea Vivaldi
Processing documents is a critical and crucial aspect for enterprises. The management of documents involves several people and can be a long and time-wasting process. We developed a document workflow engine based on email paradigm. Exploiting a web application, the subject of the workflow, the document, can be sent as an email attachment. Our solution overcomes the current limitation in the use of Document Workflow software, especially regarding user experience. With our system there is no need for users to learn how a new framework works. In addition, users with different roles have different customized view of the document. Moreover a suggest feature has been implemented; the system suggests a possible receiver for the document, depending on the document flow.
Keywords: Documental Workflow; Web Technologies; Web based cooperation tools; Office Automation; Information Management
Real-Time Mobile Distance Learning System for Smartphone BIBAKFull-Text 24-32
  Jang Ho Lee
As more users are using mobile devices such as smartphones, the need for mobile distance learning system has increased that provides higher accessibility and portability than the traditional desktop-based counterparts. Most of the mobile distance learning systems are asynchronous ones that only allow students to download lecture video and lecture slides. They don't provide synchronous capability that allows students to participate in an ongoing lecture and interact with the lecturer in real time. Thus, we propose a real-time mobile distance learning system for smartphone. The proposed system allows students to watch and listen to the ongoing lecture with annotated lecture slides in real time with their smartphones. It also provides real-time text-based interaction between students and lecturer.
Keywords: real-time distance learning; synchronous collaboration; mobile application; smartphone
Cooperative Information Management of Degradation of Structures in Operation and Management BIBAKFull-Text 33-40
  Takashi Aruga; Nobuyoshi Yabuki
Civil engineering structures are central part of infrastructures which are indispensable to social life and economic activity. Civil engineering structures are designed to be used for a long time. They are also expected to keep their functions if natural disasters occur. Thus, the administrators routinely perform maintenance of the structures. In recent years, a cooperative effort between not only engineers but also public is performed to share various information. Therefore, a framework in which the process of cooperative information sharing and decision-making in maintenance management is required. The objective of our research is to develop a framework for cooperative decision-making in maintenance management. Thus, we investigated maintenance management and degradation, and then, developed information models for better, cooperative management.
Keywords: cooperative information management; civil engineering structure; maintenance management; degradation
Real-Time Resource Location Tracking in Building Information Models (BIM) BIBAKFull-Text 41-48
  Aaron Costin; Nipesh Pradhananga; Jochen Teizer; Eric Marks
The purposes of this research are to develop and evaluate a framework that utilizes the integration of commercially-available Radio Frequency Identification (RFID) and a BIM model for real-time resource location tracking within an indoor environment. A focus of this paper is to introduce the framework and explain why building models currently lack the integration of sensor data. The need will be explained with potential applications in construction and facility management. Algorithms to process RFID signals and integrate the generated information in BIM will be presented. Furthermore, to demonstrate the benefits of location tracking technology and its integration in BIM, the paper provides a preliminary demonstration on tracking valuable assets inside buildings in real-time. The preliminary results provided the feasibility of integrating passive RFID with BIM for indoor settings.
Keywords: Building Information Modeling (BIM); Radio Frequency Identification (RFID); indoor localization; real-time location tracking
Cooperative Integration of Product Model and Sensor Data Model for Knowledge Discovery BIBAKFull-Text 49-52
  Nobuyoshi Yabuki; Yuta Ashida; Tomohiro Fukuda
In order to discover useful knowledge from a large amount of data observed by many sensors which will be installed inside or outside of buildings and houses, first, a product model was developed, based on IFC. Next, a sensor data model was developed, based on NEES Reference Data Model. Then, these data models were integrated. After developing the integrated data model, sensor monitoring was executed at an office of Osaka University, and a product data of the office was made. The monitoring data and the product data were stored in accordance with the integrated data model, and data mining was successfully performed for knowledge discovery.
Keywords: data mining; product model; sensor data model; IFC; BEMS
Cooperative Decision Making Algorithm for Large Networks Using MapReduce Programming Model BIBAKFull-Text 53-56
  Wojciech Indyk; Tomasz Kajdanowicz; Przemyslaw Kazienko
Recently, due to information explosion in our environment, complex networks appear more frequently. Many types of networks, such as social networks, biological structures, telecommunication networks and many others, consist of huge amount of data which grows exponentially. Obviously, there is a problem with processing such big datasets, especially in order to provide support for decisions making. In general, structure of networks is not independent. It means behaviour of single node in network depends on behaviour of others. According to this property, decision making for particular network's node must be based on gathered information from other nodes. Such a collaborative decision making, based on dependencies of network's components induce more accurate results. In this paper it is presented an early stage consideration of sampling techniques based on node degree for decision making in huge networks based on information sharing and propagation. We solve a problem of decision assignment for each node using information propagation in a network. Proposed collaborative decision making solution assumes decomposition of the problem that allows distributed computing.
Keywords: cooperative decision making; relational learning; mapReduce; social networks; large databases; big data
Enabling Cooperative Educational Game Design on the Web BIBAKFull-Text 57-64
  Navid Ahmadi; Mehdi Jazayeri; Monica Landoni
Educational game design environments enable end users to create computer games and are used as an engaging medium to teach programming to novice programmers. Although the cooperative dimension of end-user programming has been recognized and collaboration among novice programmers is advised, educational game design environments have remained solitary and desktop based, with only limited support for sharing -- at most through a supplementary Website. Inspired by cooperation benefits of Web 2.0, we have developed AgentWeb, a fully Web-based game design environment that incorporates cooperation tools into the game design process. Coupled with the participative nature of Web 2.0 applications, AgentWeb enables a richer class of learning and collaboration in which the download-upload operations are unnecessary and users are given instant access to the design and implementation of other games. The sharing of design is an enabling ingredient for cooperative design. We present a preliminary evaluation of AgentWeb's usability.
Keywords: End-user programming; collaborative design; educational game design; Web 2.0; cooperative applications
Learning Computer-Mediated Cooperation in 3D Visualization Projects BIBAKFull-Text 65-72
  Mikhail Fominykh; Ekaterina Prasolova-Førland; Monica Divitini
Project work is becoming an important part of university education aiming at preparing students for team-based activities in a workplace. However, cooperation problems are common in the learning process. The major purpose of this paper is to address these challenges by applying a three-dimensional Collaborative Virtual Environment (3D CVE) as a platform for learning how cooperation can be supported by technology. 3D CVEs, such as Second Life, have become increasingly popular as cooperation and learning platforms, providing wide possibilities for collaborative work, interaction, and visualization. In the discussion, we use the results of an explorative case study conducted within the Cooperation Technology course at the Norwegian University of Science and Technology. Students were working in small groups on the projects aiming at visualizing major curriculum concepts. We analyze collaboration in student groups that occur on different levels and, as a result, provide a set of implications for using 3D CVEs for learning computer-mediated cooperation.
Keywords: 3D Collaborative Virtual Environments; collaboration; educational visualizations; Second Life
Real-Time Stereoscopic Streaming of Medical Surgeries for Collaborative eLearning BIBAKFull-Text 73-77
  Sven Ubik; Jiri Navratil; Petr Zejdl; Jiri Halak
Medical surgeries in various specialities have been recently enhanced by modern devices with 3D vision for the surgeon. By transferring this 3D vision in high quality and with low latency to distant locations, we can enable novel collaborative teaching programs for medical students and doctors, also allowing remote interaction with the surgeon.
   We describe our experience with real-time long-distance stereoscopic transmissions of medical surgeries using a system for low latency streaming over packet networks. We discuss options for 3D transmission, 3D projection and experience of users that took part in multiple demonstrational transmissions.
Keywords: robotic surgery; eLearning in medicine; collaborative teaching; 3D transmissions
Scalable Integration of Multiple Health Sensor Data for Observing Medical Patterns BIBAKFull-Text 78-84
  Hugo Sereno Ferreira; Tiago Boldt Sousa; Angelo Martins
With an aging global population, Ambient Assisted Living (AAL) attempts to improve life expectancy and quality of life through the remote monitoring of various health signals using personal and home-based sensors. Possible medical conditions can be early ascertained by observable patterns over the patients' health data. However, aggregating multiple raw signals and matching against medical protocols can be computational and bandwidth intensive. Moreover, adding new protocols requires non-trivial expertise to define necessary rules. This paper describes a lightweight, scalable, and composable mechanism that captures, processes and infers possible health problems from raw data obtained from multiple sensors.
Keywords: AAL; Sensor Networks; Healthcare Systems
Collaborating Using Intergroup Communications in Group-Based Wireless Sensor Networks: Another Way for Saving Energy BIBAKFull-Text 85-93
  Miguel Garcia; Diana Bri; Jaime Lloret; Pascal Lorenz
Energy saving is the most important feature in wireless sensor networks (WSN). An energy saving method is to perform a logical grouping of nodes and add collaboration between them. In this paper, we show a method of collaboration between groups based on the communication between neighboring groups. Using this information, the groups will be able to create a collaborative intergroup routing pool tree. This routing pool tree allows collaboration between neighboring groups and also efficient delivery of data from any group to the sink node. This collaborative group-based system has been simulated and we have shown that it increases significantly the lifetime of sensor nodes.
Keywords: collaboration; group-based; intergroup; wireless sensor network
Empirical Evidence of Tags Supporting High-Level Awareness BIBAKFull-Text 94-101
  Cong Chen; Kang Zhang; Takayuki Itoh
Awareness of other coworkers' activities is critical for collaborative software development. However, high-level information has not been studied extensively. This paper introduces the concept of high-level awareness. To explore sources of such information, a case study on tag use in an open source project is conducted. Evidence of tags supporting high-level awareness is found, and tag use patterns and semantics are discussed.
Keywords: kTag; High-level; Awareness; Case study; Empirical evidence
Rough Sets Methods for Working with Uncertainty BIBAKFull-Text 102-109
  Sylvia B. Encheva
Firms of all sizes are forced to consider new collaboration partners in order to prosper. The process of partner selection requires both serious considerations and efficient decision making. Evaluating of firm's collaboration options as well as a discussion of methods for ordering criteria applied for ranking selected options are the subject of this work.
Keywords: Evaluation; many valued logics; partner selection
Project Proposals Ranking Based on Closed Sets Properties BIBAKFull-Text 110-113
  Sylvia B. Encheva; Sharil Tumin; Marina Z. Solesvik
Cooperative decision making is broadly understood as a consensus process aiming to find the best possible solution for both a particular group as a whole and for its members. While some of the researchers concentrate on the human aspect of the process others work on providing technical solutions facilitating both human and computer based decision makers. Ranking of projects proposals applying closed sets theory is in the main focus of this work. Particular attention is paid to involvement of generators and cover tuples.
Keywords: Cooperative decision making; closed sets; ranking; intelligent systems
What Do Strokes Teach Us about Collaborative Design? BIBAKFull-Text 114-125
  Catherine Elsen; Françoise Darses; Pierre Leclercq
Understanding collaborative design goes far beyond analyzing group dynamics, tasks allocations or negotiation during decision-making processes. In this paper, we focused on the collaborative sketching process, during which the intentions of designers are supported by their sketches and by specific strokes. Twelve professional designers attended an experimental design session, where they were asked to express, share, capture or interpret sketches. A qualitative and quantitative fine-grained analysis of strokes teach us (i) how designers tend to deal with representations that are not theirs; (ii) what main graphical key-features constitute the inner nature of the shared information and (iii) how and when can this graphic essence be shared with collaborators.
Keywords: Shared Representations; Preliminary Design; CSCW; SBIM
Communication between Physical and Virtual Models in Designing Smart Buildings BIBAKFull-Text 126-133
  Ingeun Yi; Seongki Lee; Sunyoung Jang; Doyoung Kim; Sung-Ah Kim
The aim of this paper is to propose a collaborative design environment which helps interact with virtual and physical models for the smart building design. We propose the framework which enables design team to adopt BIM data in early phase of design process and to make dynamic decision. We realize the '1to1' communication system focusing on interactive façade design based on the framework. The single connection can expand into manifold connections for the cooperative design environment.
Keywords: BIM; Smart Building; Interactive Wall; Kinetic Façade; Physical Computing
Cased-Based Reasoning Based on Extension Theory for Conflict Resolution in Cooperative Design BIBAKFull-Text 134-142
  Yanwei Zhao; Huan Wang; Huanhuan Hong; Jian Chen
Customer participation is common in cooperative design, which facilitates the understanding and addressing of customers' requirements. Case-based Reasoning (CBR) is an effective method for quickly finding cases that may address customers' requirements. The challenges for applying CBR to fulfill customers' requirements at an early design stage include the complexity of requirements representation, the conflicts between different requirements, and the development of similarity measures for retrieval. This paper presents our work on the representation of both qualitative and quantitative requirements on product performance on the basis of fuzzy matter-element. On that basis, a similarity measure is developed using the side-distance in extension theory, to achieve accurate retrieval and effective conflict resolution. A case study of a screw air compressor is used to evaluate the proposed description method and the similarity measure. It is shown that the proposed methods are viable and effectively address the conflict resolution issue.
Keywords: cooperative design; case based-reasoning; extension theory; conflict resolution; fuzzy matter-element; retrieval
The Role of a City's Collective Memory in Supporting Cooperative Urban Design Learning BIBAKFull-Text 143-150
  Sushardjanti Felasari; Chengzhi Peng
This paper reports on a study of how a city's collective memory can be accessed to support cooperative urban design learning in university-based education and training. We focus on how digital collective memory can be developed and evaluated in supporting urban design learning activities. Using Google Apps, a website was developed as a pilot virtual learning environment through which students can access 3D city models and urban design learning content. To evaluate the effectiveness of the digital collective memory on supporting cooperative urban design learning, an experiment was conducted in a real education setting. The result shows that the content of collective memory as accessed by the students has significantly contributed to the development of their group design tasks.
Keywords: collective memory; cooperative learning; urban design; virtual learning environment; Google Apps
Simulation and Optimization in Collaborative Ship Design: Innovative Approach BIBAKFull-Text 151-154
  Marina Z. Solesvik; Tatiana Iakovleva; Sylvia B. Encheva
The paper presents software for simulation and optimization elaborated by a Norwegian firm. This tool is applied by an international corporation which consists of ship designers, suppliers of equipment, and R&D suppliers during their collaborating projects with shipowners. This tool allows a better coordination between participants of the design process situated in different countries, simulation of vessel behaviour in different weather conditions, and cost control. This tool can also be applied in other industries, for example, car design.
Keywords: cooperative design; shipbuilding; simulation; optimization; 3D models
Ronda: A Fine Grained Collaborative Development Environment BIBAFull-Text 155-162
  Fernando Olivero; Michele Lanza; Marco D'Ambros
Programmers seldom work in isolation: Software development is a social human activity, which therefore requires collaboration among the involved programmers. We argue that the main vehicles for programming -- the integrated development environments (IDEs) -- were designed without collaboration in mind. IDEs focus on a single viewpoint of the system, hence team members are aware of system changes only after the code is committed to the versioning system, which delays discussions that would otherwise prevent conflicts.
   We propose a novel IDE, named Ronda, devised from the ground up, to fully embrace the collaborative nature of programming. Such an IDE allows a team of developers to take part in development sessions, both individually and in a group, within the same environment, promoting awareness and coordination, by tracking, broadcasting and visualizing fine-grained changes to the system.
A Collaborative Expandable Framework for Software End-Users and Programmers BIBAKFull-Text 163-166
  Tiago Almeida; Hugo Sereno Ferreira; Tiago Boldt Sousa
The quantity and complexity that end-users are increasingly demanding from their applications and devices makes it impractical for a software developer to "foresee" every possible combination and explore every valid alternative. One solution is to empower end-users with tools that allows them to explore their necessities in a collaborative framework, where novices and experts can co-exist and share. We believe that such a tool could not only reduce the number of "small", specific-tailored applications, but also foster discovery and experimentation.
Keywords: Component-based Programming; End-user Programming; Cooperative Programming
Fostering Collaboration in Software Development through a Visual Assistant to Unit Testing BIBAKFull-Text 167-170
  Thomas Tamisier; Morgan Mathu; Fernand Feltz
Nowadays large software applications evidence the need to improve collaboration within development teams. We present a new approach to the validation, aiming at improving flexibility, collaboration support, and output quality. Incorporated in an integrated development environment such as Eclipse, it allows visualizing the scope and progress of the tests and updates this information according to the evolution of the software and its use requirements.
Keywords: JUnit; Software Environment; Collaborative software editing
Cooperative Access to Hierarchical Data from Biotechnological Pilot-Plant BIBAKFull-Text 171-178
  Dariusz Choinski; Mieczyslaw Metzger; Witold Nocon; Grzegorz Polaków; Barbara Rozalowska; Piotr Skupin
A hierarchy of data is dependent on the level of its complexity and on the amount of knowledge needed for its interpretation. Cooperation between users of the data at different levels of hierarchy requires development of plans to access the data for individual users depending on their needs. Such plans can be built basing on the common field of experience notion. The work presented in the paper focuses on increasing the cooperation efficiency through the use of a social bookmarking system maintaining the unambiguity of hierarchical knowledge structures. Lack of such structures would significantly impair the cooperation process. The proposed multiagent system contains ontologies for classifying non-hierarchical components and enables the exchange and comparison of the data structures. Thus, tags associated with the graph-based rules of social bookmarking can be classified using strict hierarchical terms. Presented solution was evaluated by supporting microscopic observations during experimentation on biostimulation of biological wastewater treatment process.
Keywords: social bookmarking; common field of experience; data hierarchy; interdisciplinary cooperation; cooperative process control
A Study on Cooperative Community in Enterprise Cluster Based on Fuzzy Clustering BIBAKFull-Text 179-186
  Shuangxi Huang; Hui Liang; Wei Su
With the intensification of competition in the market, the enterprises pay more attention to inter-enterprise cooperation. We take the concept of enterprise community in the cluster, build enterprise demand-service model, and aggregate scattered enterprises into community by the way of fuzzy clustering. The study of this problem can facilitate the cooperation between enterprises and reduce the cost and complexity of cooperative communication.
Keywords: enterprise cooperation; enterprise cluster; enterprise community; fuzzy clustering
A Virtual Assembly Fat Model for Cooperative Assembly Processes of Large-Scale Product BIBAKFull-Text 187-194
  Jinsong Bao; Yanchun Yang; Dianliang Wu
Large-scale, complex products are designed collaboratively by different global manufacturers. This leads to problems of deciding manufacturing tolerance of production's quality in the final assembly process. A new virtual assembly model, called VAFM (Virtual Assembly Fat Model), is presented in the paper. It integrates not only nominal CAD geometry, but also non-geometry information (geometric dimensions and tolerances (GD&T), bill of materials (BOM), process specifications, assembly deform and inspection data). All information of the model will evolve, mature and derived gradually from "thin" to "fat" during the whole cooperative assembly process. The paper presents the definition of a VAFM, its framework and the evolution rules of the fat model. The paper also presents a modeling language based on XML and its visualization. Finally, a case showing the evolution of the VAFM in the assembly process is illustrated.
Keywords: VAFM; cooperative assembly; large-scale product; visualization; Virtual assembly
Urban Infoscape for Sustainable Lifestyle of Smart Green City BIBAKFull-Text 195-202
  Yoon Choe; Ingeun Yi; Yumi Song; Sung-Ah Kim
This research proposes the framework of urban infoscape that can affect the user lifestyle through the nudge effect rather than relying on suppliers-centered data visualization. To verify how the lifestyle changes by using urban infoscape, we choose a place vulnerable to the misuse by users within the university campus as a reduced version of urban public space. We investigate various methodologies of information visualization with a small-scale experiment. In addition, we will testify how much the framework of urban infoscape can affect sustainable behavior. Positive results will be applied to the public urban sculpture planning and individual assistant system for sustainable lifestyle.
Keywords: Infoscape; Sustainable Lifestyle; Information Visualization; Citizen Awareness; User Engagement
Cooperative Information Sharing between a 3D Model and Structural Analysis Software for Railway Viaducts BIBAKFull-Text 203-206
  Yasuo Fujisawa; Nobuyoshi Yabuki
Much effort has been being done to realize the concept of Building Information Modeling (BIM) in building industry. In the civil infrastructure domain, however, BIM has not been prevailing so much yet. To promote BIM in this domain, advantages by adoption of the new methodology, especially the cooperative aspect, must be clearly illustrated. In this paper, cooperative information sharing methodology between a 3D model and structural analysis software for railway viaducts is described.
Keywords: BIM; 3D model; structural analysis; viaduct
A Zoomable Location-Based Dashboard for Construction Management BIBAKFull-Text 207-210
  Annie Guerriero; Daniel Zignale; Gilles Halin
In the Architecture Engineering and Construction (AEC) sector, the activity on building sites is largely mobile. The new devices (such as tablet) offer new perspectives for the construction management and for location-based services. This article presents a business practice and usage-centered method for service specification and the study of a zoomable dashboard which relies on a five-level location scale (from the site to the building element). Each level of location is characterized by particular business practices and consequently by specific visualizations.
Keywords: Construction; service specification; usage; zoomable user interface
Collaborative System for HK-BEAM Green Building Certification BIBAKFull-Text 211-218
  Jack C. P. Cheng; Vignesh Venkataraman
The built environment is moving towards sustainable development. The number of green buildings increases worldwide in recent years. Green buildings are environmentally, socially and economically desirable. However, the certification of green buildings is often expensive and labor-intensive. The document preparation and review process for green building certification is iterative in nature and requires collaboration of many project participants, certification organizations, and third party engineering consultants. In this paper, we focus on the green building certification in Hong Kong. The BEAM standard, established in 1996, is used for assessing and labeling green buildings in Hong Kong and cities in mainland China. Based on the BEAM standard, we have developed a web-based collaborative system that aims to facilitate the document management and certification planning for BEAM. The role-based access control of the system ensures the right information is available to the right people. This paper presents the features and the underlying logic of the system.
Keywords: Green building certification; Collaborative system; Document management; Hong Kong Building Environmental Assessment Method (HKBEAM)
A Metamodel to Describe nD CAD Visualization as Coordinated Multiple Views BIBAKFull-Text 219-226
  Conrad Boton; Gilles Halin; Sylvain Kubicki
4D/nD simulations are increasing the quality of project management in the construction industry and many attempts are made to enable their collaborative use. However, many limitations still exist, in particular the lack of adaptation of the proposed visualization to the requirements of business users. As collaboration in construction projects requires a special attention, it is important to fit visualization to real business needs of practitioners. The work in the present paper is part of a larger one that aims to propose a method to adapt visualizations to business requirements for the construction industry, using Model-Driven Engineering approach. It introduces a metamodel of coordinated multiple views (CMV) that enable to describe 4D/nD visualizations as CMV systems.
Keywords: 4D/nD visualization; coordinated multiple views; adapted visualization; cooperative context; business view; design method
Collaborative Visualization of Environmental Simulation Result and Sensing Data Using Augmented Reality BIBAKFull-Text 227-230
  Nobuyoshi Yabuki; Shuhei Furubayashi; Yuuki Hamada; Tomohiro Fukuda
Thermal environment deterioration is a serious problem. To solve this problem, qualitative and quantitative evaluation is necessary. Computational Fluid Dynamics (CFD) analysis result and sensing data should be represented more comprehensively so that novice people can understand and join discussion on environmental design. In this research, therefore, a visualization technique is proposed, combining visualization of CFD analysis result or sensing data with Augmented Reality (AR), which can superimpose virtual objects onto the video image. By using this system, multiple users, wearing head mounted displays (HMD) can view the analysis result or sensing data onto the video image of outdoors and can investigate countermeasures to solve environmental problems cooperatively. So far, an AR-based outdoor CFD analysis result visualization system has been developed by adopting our accurate registration technique for outdoor AR using point cloud data. An AR-based outdoor sensing data visualization system is under development.
Keywords: collaboration; visualization; augmented reality; simulation; sensing
Availability of Mobile Augmented Reality System for Urban Landscape Simulation BIBAKFull-Text 231-238
  Tomohiro Fukuda; Tian Zhang; Nobuyoshi Yabuki
This research presents the availability of a landscape simulation method for a mobile AR (Augmented Reality), comparing it with photo montage and VR (Virtual Reality) which are the main existing methods. After a pilot experiment with 28 subjects in Kobe city, a questionnaire about three landscape simulation methods was implemented. In the results of the questionnaire, the mobile AR method was well evaluated for reproducibility of a landscape, operability, and cost. An evaluation rated as better than equivalent was obtained in comparison with the existing methods. The suitability of mobile augmented reality for landscape simulation was found to be high.
Keywords: Landscape simulation; augmented reality; mobile device; virtual reality
Tracking of the Subject Body Using Measurement of Active Quantity and Extraction of Color-Information BIBAKFull-Text 239-246
  Miwa Takai
This study measures the active state of the subject body and tracks a body part or whole body using Active Quantity and color-information. The active state measures how a subject moves a body part from the movement of the subject photographed in digital video camera lively with Active Quantity between 0.0 and 1.0. When a subject stands still or when a subject disappeared, the general tracking has the problem that it is difficult to track a subject body. The proposal method can know the active state of the subject by measuring the movement of the subject with Active Quantity. And, this method can observe a subject effectively in the remote control systems such as a surveillance camera system, and the telemedicine system, because this study can estimate the active state of the subject while tracking subject body.
Keywords: Track; Move; Active; Color information
A Visualization System for the Comfort Analysis of Modular Architecture: A Case Study BIBAKFull-Text 247-254
  Doyoung Kim; Seongki Lee; Sung-Ah Kim
According to the development of software, information sharing is possible between architectural design areas and other areas. Theoretically, information sharing has the advantage of should being able to quickly find to objective analysis of alternatives and an alternative that meets the constraint for designers. Although currently the design software that was made on collaboration is available energy analysis through data compatible, there are limits in terms of time and staff efficiency in design process. Thus, we will try to implement the process to allow generative design, visualization of analysis and optimization of alternative targeting factory manufacturing building that BIM-based design has been carried out to date. First, extracted information of the window as parameters among the building modeling information generate alternatives. After analysis of temperature for each alternative, modeling maps the color through the analyzed data. Consequently aesthetic of the design, the objectivity and efficiency can be achieved concurrently.
Keywords: BIM; Prefabricated Building; Building Facade; Generative Design; Performance-Oriented Design; Design Collaboration
Incorporating H&S into Design and Construction: The Case for Integrating Serious Games Engines Technologies and 4D Planning for Collaborative Work BIBAKFull-Text 255-263
  Nashwan Dawood; Jeoffrey Miller; Nobuyoshi Yabuki
The construction industry has problems with implementing and complying with health and safety approaches and procedures. This area has seen a number of papers analysing how it can effect production and how health and safety can be improved within the industry.
   Serious games provide an avenue designers and construction personnel to experience what occurs on a construction site and develop understanding of the way in which the building will constructed and the influence of different H&S procedures and rules before they enter a live construction site. These tools have traditionally been designed around the assumption of users engaging with present construction scenarios with the goal of experimenting with specific skills or behaviours that are important when interacting with the site for real.
   The construction industry has other tools it can exploit to increase the training value of serious games. 4d and 5d planning and visualisation tools and techniques can help expand the horizons of these types of training games. In particular, by merging virtual training environments with a 4d design ethos, the range of potential knowledge the game can impart would be significantly increased. This research paper is exploring how a cross-pollinisation of these two techniques can yield a richer environment for transferring skills and knowledge for collaborative design and construction within the context of H&S planning.
Keywords: Construction industry; Games engines; 4D planning; Health and Safety; Visualisation