Representing Haptic Sensation on the Mobile Device with Visuo-haptic Interaction and a Rear Touch Interface

2016 Fiscal Year Final Research Report

• Project/Area Number: 26540097
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Human interface and interaction
• Research Institution: The University of Tokyo
• Principal Investigator: Narumi Takuji 東京大学, 大学院情報理工学系研究科, 講師 (70614353)
• Co-Investigator(Renkei-kenkyūsha): Hirose Michitaka 東京大学, 情報理工学系研究科, 教授 (40156716) ; Tanikawa Tomohiro 東京大学, 情報理工学系研究科, 特任准教授 (80418657)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 感覚間相互作用 / 触力覚提示 / 背面タッチパネル / クロスモーダル / モバイル / ユーザインタフェース

Outline of Final Research Achievements

Input with a touch panel interface of a small device is typically inaccurate because the touch point is occulded by te user's finger and a user cannot obtain haptic feedback. To overcome this problem, we propose a visuo-haptic system with a rear touch interface to evoke the haptic sensation without using haptic devices. For normal force, the system modifies the shape of a virtual object when the user presses the device from behind. For shearing force, the system produces a mismatch between the speed of the touch point on the rear side, which is hidden by the monitor, and a pointer, which shows a touch point displayed on the monitor. Our experimental results demonstrated that more than 80% of participants perceived greater stiffness with the deformed model than the model not deformed by normal force. For shearing force, the results showed significant differences in perception based on differing strengths of visual feedback.

Free Research Field

ヒューマンインタフェース