ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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21.9
Displaying 1-11 of 11 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • A proposal concerning a security manners of information in internet
    Eisaku YAMAGUCHI, Ichi TAKUMI, Masayasu HATA
    Article type: Article
    Pages 1-6
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In recent years, we use Internet frequently, exchanging various information, however, sufficient measures to protect the rights of information providers have not been taken yet. In this study, I propose one of measures of their protection. This proposal is not restricted to sertification of users, it also gives information manners, such as preservation of provided information and permission or prohibition of re-utilization.
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  • Prototype e-mail system with scenario control
    Satoshi Kajita, Yuichi Kawaguchi, Satoshi Ando, Hiroyuki Yoshida
    Article type: Article
    Pages 7-14
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This paper proposes an e-mail system used on the internet. This system deals with mails involve a tag named scenario information, which is a sequence composed of input events, which are the units of action such as inputting draw-images, audios, and handwritten objects on the canvas. We now use various systems such as e-mail system, electronic meeting system, and chat system, to communicate with others on the network. However, it is difficult to keep "multi-modal" communication using these current systems, because they are not supposed to replay plural events synchronously. To solve this problem, we have been developping a new e-mail system which controls the sequence of communication in order to maintain the communication scenario. The scenario information is added to a mail message and sent to a receiver, and the receiver can follow the scenario made by the sender because of its effect. This e-mail system helps us make a synchronous communication.
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  • Network Requirements for Virtual Reality Applications
    Shinji Shimojo
    Article type: Article
    Pages 15-18
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_15
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, we discuss about network requirements for virtual reality (VR) applications on the Internet. We classify these applications into two types, nulti-user VR and adaptive VR. We show our approach for the adaptive VR where we introduce a QoS control mechanism.
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  • Interactive Workflow Management Based on Organization
    Shingo YAMAGUCHI, Satoru MORITA, Minoru TANAKA
    Article type: Article
    Pages 19-26
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_19
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Workflow management is quite useful to group-work, however, it often happens that the predefined workflow cannot be completed because of unpredictable situations. In this paper, we propose a new method of workflow management, which allows users to handle exceptions based on the organization interactively. First, we present the organization model to describe privileges among users. Next, we discuss the interactive exception handling mechanism using a WYSIWIS featuer. This method is flexible in comparison with existing ones, because users can use runtime informations to handle exceptions in this method.
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  • A Study on a Flexible Video Stream Transmission Method
    Shigeyuki SAKAZAWA, Yasuhiro TAKISHIMA, Masahiro WADA
    Article type: Article
    Pages 27-33
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_27
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This study investigates a video multicast method utilizing RSVP (a resource reservation protocol for the Internet). In this method, a layered transmission of video data is necessary since the reserved bandwidth for the multicast differs according to the network domain. This study makes use of frame data partitioning based on an MPEG-1 I, P, B structure and DCT coefficient partitioning based on their frequencies. We propose here a combined method with the goal of reducing decoding delays. A computer simulation was performed to evaluate these delays along with picture quality and results of the simulation demonstrate the effectiveness of the proposed method.
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  • Multi-Video Stream Play Out and Muli-Media Communication Service for AudioLink System
    Toru Sakatani, Hiroshi Watanabe, Hiroji Marui, Seiko Hotta, Hiroshi Ko ...
    Article type: Article
    Pages 35-38
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_35
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Visual Communication Laboratory NTT Human Interface Laboratories Synchronization among multiple video and audio streams is discussed, and multi-video stream play out is installed on the AudioLink System. Furthermore, synchronization between audio/video stream and text/graphics is discussed.
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  • A Virtual Environment Design Tool using the Immersive Modeler-VLEGO
    Haruo Takemura, Kiyoshi Kiyokawa, Hidehiko Iwasa, Naokazu Yokoya
    Article type: Article
    Pages 39-44
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_39
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, described is a design and partial implementation of a virtual environment design tool. The tool enables two users to design a virtual environment collaboratively. The tool is build upon our virtual environment modeling tool-VLEGO. Functions to be added to VLEGO are carefully chosen and implemented so that the extended functionality matches with the design policy of VLEGO. The functions actually added to VLEGO are a hierarchical representation of the environment, a mechanism to define new shape primitives, navigation mechanism in a virtual environment and a scaling function. By implementing theses functions, it was found that users can design and evaluate a virtual environment without changing modes of the tool.
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  • The System for Kitchen Layout Design based on Network Technologies and VRML
    Tomohiro Fukuda, Ryuichiro Nagahama, Junji Nomura
    Article type: Article
    Pages 45-51
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_45
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We are developing a software application to construct a whole house or living space in the virtual and to experience it by applying Virtual Reality (VR) technology. We have already developed the VR system and it is in use for kitchen layout design and urban project. This paper aims to extend the VR system to be accessed on the internet and to correspond to the changing needs and values of consumer. We place the VRML as the basic language and develop the networked VR system with low cost, cross-platform supported and user-friendly interface.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: February 12, 1997
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.21.9.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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