Browsing by Author "Ban, Yuki"

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    FrictGAN: Frictional Signal Generation from Fabric Texture Images using Generative Adversarial Network
    (The Eurographics Association, 2020) Cai, Shaoyu; Ban, Yuki; Narumi, Takuji; Zhu, Kening; Argelaguet, Ferran and McMahan, Ryan and Sugimoto, Maki
    The electrostatic tactile display could render the tactile feeling of different haptic texture surfaces by generating the frictional force through voltage modulation when a finger is sliding on the display surface. However, it is challenging to prepare and fine-tune the appropriate frictional signals for haptic design and texture simulation. We present FrictGAN, a deep-learningbased framework to synthesize frictional signals for electrostatic tactile displays from fabric texture images. Leveraging GANs (Generative Adversarial Networks), FrictGAN could generate the displacement-series data of frictional coefficients for the electrostatic tactile display to simulate the tactile feedback of fabric material. Our preliminary experimental results showed that FrictGAN could achieve considerable performance on frictional signal generation based on the input images of fabric textures.
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    Visuo-Haptic Redirected Walking Using Handrail
    (The Eurographics Association, 2018) Matsumoto, Keigo; Narumi, Takuji; Yanase, Yohei; Ban, Yuki; Tanikawa, Tomohiro; Hirose, Michitaka; Huang, Tony and Otsuki, Mai and Servières, Myriam and Dey, Arindam and Sugiura, Yuta and Banakou, Domna and Michael-Grigoriou, Despina
    A novel use of virtual reality (VR) was demonstrated. It enables a user to feel walking a straight virtual corridor while touching straight handrails, although the user walks while gripping circular handrails within a limited space. The main contribution of this study is to show that visual-haptic redirect walking is possible using handrails for a haptic presentation. Matsumoto et al. introduced visuo-haptic redirected walking. They used walls as a haptic presentation, and they produced Unlimited Corridor as a VR demonstration using visuo-haptic redirected walking. However, it has not yet been verified whether the same effect can occur by touching other shapes. Therefore, in this study, a VR demonstration using handrails instead of walls was created, and whether visuo-haptic redirected walking is possible even with handrails for haptic presentation was examined. In the demonstration, more than 2000 people participated, and their comments and motion data were gathered. The users' comments implied that visuo-haptic redirected walking was possible using handrails.