Interaction with virtual object using deformable hand
Interaction with virtual object using deformable hand
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DOI：
10.1109/vr.2016.7504687
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发表时间：
2016-03
期刊：
影响因子：
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通讯作者：
K. Hirota;K. Tagawa
中科院分区：
文献类型：
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作者：
K. Hirota;K. Tagawa
本研究探讨一种手型与接触模拟方法的实作，以提升虚拟环境中物件操作的真实感。这项研究的重点是手跟踪方法，利用指甲和接触模拟使用可变形的手模型。已知使用手来操纵物体更频繁地使用指尖和手掌。所提出的方法寻求手的形式，最大限度地减少这些地区的位置和方向误差。手的软组织的变形被认为对视觉现实和接触的物理状态都有影响。在我们的实现中，变形是由有限元模拟和接触摩擦的罚款方法引入。此外，基于元球（或斑点）的模型被用来表示物体的光滑表面，并消除来自多边形建模的问题。通过实验实现，证明了物体操作，如捏和抓是可能的，模拟的更新速率可以是约50 Hz。
This study investigated the implementation of a hand model and contact simulation method for the purpose of improving the reality of object manipulation in a virtual environment. The study focused both on the hand tracking method that takes advantage of nails and also contact simulation using a deformable hand model. The manipulation of an object using a hand, is known to make more frequent use of the fingertips and palm. The proposed method seeks hand form that minimizes the position and orientation errors on those areas. Deformation of the soft tissue of the hand is considered to have an effect on both visual reality and the physical state of contact. In our implementation, the deformation was simulated by FEM and the friction of contact was introduced by the penalty method. In addition, a model that is based on metaballs (or blobs) was employed to represent the smooth surface of the object and to eliminate the problem that derives from polygon modeling. Through experimental implementation, it was proved that object manipulation such as pinching and grasping are possible and that the update rate of simulation can be approximately 50 Hz.