This paper proposes a new framework of managing virtual spaces based on spatial databases as an extension of VRML-based systems. The framework is suitable for treating continuous virtual spaces and for managing the quality of service (QoS) of the virtual spaces depending on user's operations and situations of computer resources. Levels of detail (LoD) of 3D objects is the most important rule for rendering scenes dynamically while managing the QoS. This paper describes a method of managing the QoS depending on the LoD in the form of spatial queries. An advantage of the framework is that spatial databases can incrementally construct virtual spaces in clients using differential descriptions based on VRML, that is, DVRML, proposed in this paper. Dynamic spatial data such as avatar's movement and real-time multimedia data such as videos should be shared by all participants in a virtual space in real time. Our framework can also handle dynamic spatial data by means of real-time updating of some spatial objects in spatial databases as well as static spatial data. We developed some experimental applications based on the framework in order to prove that it is feasible for networked virtual spaces with video components.
Masatoshi ARIKAWA
Shinji SHIMOJO
Akira AMANO
Kaori MAEDA
Reiji AIBARA
Kouji NISHIMURA
Kaduo HIRAKI
Kazutoshi FUJIKAWA
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Masatoshi ARIKAWA, Shinji SHIMOJO, Akira AMANO, Kaori MAEDA, Reiji AIBARA, Kouji NISHIMURA, Kaduo HIRAKI, Kazutoshi FUJIKAWA, "Real-Time Spatial Data Management for Scalable Networked Augmented Virtual Spaces" in IEICE TRANSACTIONS on Information,
vol. E82-D, no. 1, pp. 99-112, January 1999, doi: .
Abstract: This paper proposes a new framework of managing virtual spaces based on spatial databases as an extension of VRML-based systems. The framework is suitable for treating continuous virtual spaces and for managing the quality of service (QoS) of the virtual spaces depending on user's operations and situations of computer resources. Levels of detail (LoD) of 3D objects is the most important rule for rendering scenes dynamically while managing the QoS. This paper describes a method of managing the QoS depending on the LoD in the form of spatial queries. An advantage of the framework is that spatial databases can incrementally construct virtual spaces in clients using differential descriptions based on VRML, that is, DVRML, proposed in this paper. Dynamic spatial data such as avatar's movement and real-time multimedia data such as videos should be shared by all participants in a virtual space in real time. Our framework can also handle dynamic spatial data by means of real-time updating of some spatial objects in spatial databases as well as static spatial data. We developed some experimental applications based on the framework in order to prove that it is feasible for networked virtual spaces with video components.
URL: https://global.ieice.org/en_transactions/information/10.1587/e82-d_1_99/_p
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@ARTICLE{e82-d_1_99,
author={Masatoshi ARIKAWA, Shinji SHIMOJO, Akira AMANO, Kaori MAEDA, Reiji AIBARA, Kouji NISHIMURA, Kaduo HIRAKI, Kazutoshi FUJIKAWA, },
journal={IEICE TRANSACTIONS on Information},
title={Real-Time Spatial Data Management for Scalable Networked Augmented Virtual Spaces},
year={1999},
volume={E82-D},
number={1},
pages={99-112},
abstract={This paper proposes a new framework of managing virtual spaces based on spatial databases as an extension of VRML-based systems. The framework is suitable for treating continuous virtual spaces and for managing the quality of service (QoS) of the virtual spaces depending on user's operations and situations of computer resources. Levels of detail (LoD) of 3D objects is the most important rule for rendering scenes dynamically while managing the QoS. This paper describes a method of managing the QoS depending on the LoD in the form of spatial queries. An advantage of the framework is that spatial databases can incrementally construct virtual spaces in clients using differential descriptions based on VRML, that is, DVRML, proposed in this paper. Dynamic spatial data such as avatar's movement and real-time multimedia data such as videos should be shared by all participants in a virtual space in real time. Our framework can also handle dynamic spatial data by means of real-time updating of some spatial objects in spatial databases as well as static spatial data. We developed some experimental applications based on the framework in order to prove that it is feasible for networked virtual spaces with video components.},
keywords={},
doi={},
ISSN={},
month={January},}
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TY - JOUR
TI - Real-Time Spatial Data Management for Scalable Networked Augmented Virtual Spaces
T2 - IEICE TRANSACTIONS on Information
SP - 99
EP - 112
AU - Masatoshi ARIKAWA
AU - Shinji SHIMOJO
AU - Akira AMANO
AU - Kaori MAEDA
AU - Reiji AIBARA
AU - Kouji NISHIMURA
AU - Kaduo HIRAKI
AU - Kazutoshi FUJIKAWA
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E82-D
IS - 1
JA - IEICE TRANSACTIONS on Information
Y1 - January 1999
AB - This paper proposes a new framework of managing virtual spaces based on spatial databases as an extension of VRML-based systems. The framework is suitable for treating continuous virtual spaces and for managing the quality of service (QoS) of the virtual spaces depending on user's operations and situations of computer resources. Levels of detail (LoD) of 3D objects is the most important rule for rendering scenes dynamically while managing the QoS. This paper describes a method of managing the QoS depending on the LoD in the form of spatial queries. An advantage of the framework is that spatial databases can incrementally construct virtual spaces in clients using differential descriptions based on VRML, that is, DVRML, proposed in this paper. Dynamic spatial data such as avatar's movement and real-time multimedia data such as videos should be shared by all participants in a virtual space in real time. Our framework can also handle dynamic spatial data by means of real-time updating of some spatial objects in spatial databases as well as static spatial data. We developed some experimental applications based on the framework in order to prove that it is feasible for networked virtual spaces with video components.
ER -