A Method for Representing the Shape of a Virtual Object in Real Time.
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- Hoshino Hiroshi
- Faculity of Engineering, the University of Tokyo
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- Hirata Ryokichi
- Faculity of Engineering, the University of Tokyo
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- Maeda Taro
- Faculity of Engineering, the University of Tokyo
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- Tachi Susumu
- Faculity of Engineering, the University of Tokyo
Bibliographic Information
- Other Title
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- 仮想触空間における物体形状の実時間提示法
- カソウ ショククウカン ニ オケル ブッタイ ケイジョウ ノ ジツジカン テイ
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Abstract
We have proposed a system which enables an operator to feel himself/herself touching an arbitrary surface with edges in virtual environment. This system represents the shape of an object in virtual environment by locally con-structing its shape around his/her finger tip with Shape Approximation Device (SAD), of which each surface has convex and concave edges.<BR>In this paper we propose a shape model of an object in virtual environment for this local construction of its shape and an algorythm of shape representation based on this model. We design the shape model so that it is possible to construct the represented shape including curved surfaces and curved edges in real time. In this model an object in virtual environment is divided into quadrangles called patches, and the shape on each patch is described using Bézier surface, which is suitable to describe a complicated shape. We realized a hardware system which could represent a shape which included curved surfaces and curved edges in real time.
Journal
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- Journal of the Robotics Society of Japan
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Journal of the Robotics Society of Japan 15 (6), 868-877, 1997
The Robotics Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679701557248
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- NII Article ID
- 10007549432
- 10014666996
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- NII Book ID
- AN00141189
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- ISSN
- 18847145
- 02891824
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- HANDLE
- 2261/7220
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- NDL BIB ID
- 4275398
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed