Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality

碩士 === 國立臺灣大學 === 資訊網路與多媒體研究所 === 106 === Feeling the shape when grasping an object in Virtual Reality (VR) enhances the sense of presence and the ease of object manipulation. Though most prior works focus on force feedback of fingers, haptic emulation of grasping 3D shape requires touch sensation o...

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Main Authors: Shan-Yuan Teng, 鄧善元
Other Authors: 陳炳宇
Format: Others
Language:en_US
Published: 2018
Online Access:http://ndltd.ncl.edu.tw/handle/z22ax7
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spelling ndltd-TW-106NTU056410342019-07-25T04:46:49Z http://ndltd.ncl.edu.tw/handle/z22ax7 Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality 虛擬實境之氣動形變觸覺介面設計 Shan-Yuan Teng 鄧善元 碩士 國立臺灣大學 資訊網路與多媒體研究所 106 Feeling the shape when grasping an object in Virtual Reality (VR) enhances the sense of presence and the ease of object manipulation. Though most prior works focus on force feedback of fingers, haptic emulation of grasping 3D shape requires touch sensation of whole hand. Hence, we present Pop-up Prop on Palm (PuPoP), a light-weight pneumatic shape-proxy interface worn on palm that pops up several airbags with predefined primitive shapes for grasping. When a user''s hand encounters a virtual object, an airbag of appropriate shape would be inflated by air pumps ready for grasping; on the other hand, the airbag flattens when the object is dismissed. Since PuPoP is a physical prop, it can provide full sensation of touch to enhance realism for object manipulation. We first explored the design and implementation of PuPoP with multiple shape structures. We then conducted two user studies to further understand its applicability. The first study show that, when in conflict, visual sensation tends to dominate over touch sensation, allowing a prop with fixed size to represent multiple virtual objects with similar sizes. The second study compared PuPoP with controllers and free-hand manipulation in two VR applications. The results suggest that holding dynamically-changing PuPoP in line with the shapes of virtual objects enhances enjoyment and realism. We believe PuPoP is a simple yet effective way to convey haptic shapes in VR. 陳炳宇 2018 學位論文 ; thesis 58 en_US
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description 碩士 === 國立臺灣大學 === 資訊網路與多媒體研究所 === 106 === Feeling the shape when grasping an object in Virtual Reality (VR) enhances the sense of presence and the ease of object manipulation. Though most prior works focus on force feedback of fingers, haptic emulation of grasping 3D shape requires touch sensation of whole hand. Hence, we present Pop-up Prop on Palm (PuPoP), a light-weight pneumatic shape-proxy interface worn on palm that pops up several airbags with predefined primitive shapes for grasping. When a user''s hand encounters a virtual object, an airbag of appropriate shape would be inflated by air pumps ready for grasping; on the other hand, the airbag flattens when the object is dismissed. Since PuPoP is a physical prop, it can provide full sensation of touch to enhance realism for object manipulation. We first explored the design and implementation of PuPoP with multiple shape structures. We then conducted two user studies to further understand its applicability. The first study show that, when in conflict, visual sensation tends to dominate over touch sensation, allowing a prop with fixed size to represent multiple virtual objects with similar sizes. The second study compared PuPoP with controllers and free-hand manipulation in two VR applications. The results suggest that holding dynamically-changing PuPoP in line with the shapes of virtual objects enhances enjoyment and realism. We believe PuPoP is a simple yet effective way to convey haptic shapes in VR.
author2 陳炳宇
author_facet 陳炳宇
Shan-Yuan Teng
鄧善元
author Shan-Yuan Teng
鄧善元
spellingShingle Shan-Yuan Teng
鄧善元
Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality
author_sort Shan-Yuan Teng
title Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality
title_short Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality
title_full Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality
title_fullStr Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality
title_full_unstemmed Design of Shape-changing Haptic Interfaces Using Pneumatic Actuation for Virtual Reality
title_sort design of shape-changing haptic interfaces using pneumatic actuation for virtual reality
publishDate 2018
url http://ndltd.ncl.edu.tw/handle/z22ax7
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