著者

茂山 丈太郎 小川 奈美 鳴海 拓志 谷川 智洋 廣瀬 通孝

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.22, no.3, pp.369-378, 2017 (Released:2017-09-30)

参考文献数

13

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We propose a system that presents a feeling of resistive force by modifying joint angles of user's avatar, and an approach to reduce feeling of discomfort evoked by a conflict between visual and proprioceptive sensations. Pseudo-haptic feedback enables us to provide haptic sensations by making discrepancy between the position of user's body in the real world and avatar which represents a part of user's body in a virtual environment without using any complicated devices. However, a larger discrepancy between proprioceptive and visual sensations causes a feeling of discomfort to a user, and leads to reduce the effectiveness of pseudo-haptic effect. Also, modifying a displacement of a body part cannot maintain a consistency of whole body parts of a user and an avatar under an immersive virtual environment. To avoid these problems, we proposed a pseudo-haptic approach of modifying a joint angle of avatar. Furthermore, in order to reduce perceptual deformation of an avatar, we introduced a novel approach of simultaneously modifying multiple joint angles of an avatar. Our experiments showed that modifying multiple joint angles of an avatar's arm can reduce a feeling of discomfort but still presents a certain intensity of resistive force, compared to changing only a single joint angle.