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Item XR remote dialogue system presenting speaker's expression using a real-space avatar robot(The Eurographics Association, 2024) Yoneda, Yuto; Ojima, Yukiya; Fukuchi, Yosuke; Yem, Vibol; Ikei, Yasushi; Nishiuchi, Nobuyuki; Hasegawa, Shoichi; Sakata, Nobuchika; Sundstedt, VeronicaThis paper proposes a remote dialogue system that utilizes XR technology with an avatar robot. The proposed system is designed to facilitate on-site interaction between a worker wearing mixed reality glasses (HoloLens 2) and a remote interlocutor wearing a head-mounted display, including spatial objects. The remote interlocutor's facial expressions, head movements, mouth movements, and gaze direction were reproduced on a 3D avatar. The effectiveness of the proposed system was evaluated qualitatively. In addition, the effect of the facial expression generation of the real avatar was assessed.Item Study on multiple-virtual body perception: Effects of different spatial presentation and command input methods(The Eurographics Association, 2024) Serizawa, Masatoshi; Fukuchi, Yosuke; Yem, Vibol; Ikei, Yasushi; Nishiuchi, Nobuyuki; Tanabe, Takeshi; Yem, VibolThe development of a system enabling a single operator to manipulate multiple remote proxy bodies holds considerable social significance due to its potential to enhance time efficiency. This research involved a user study aimed at exploring the characteristics of multiple-body perception, influenced by the method of spatial presentation (simultaneous, switching, transparent) and the command input method to the proxy bodies (buttons, voice). A subjective evaluation through questionnaires assessed the embodiment experiences associated with multiple bodies. The data analysis from this evaluation highlighted that the transparent presentation method notably improved the sensation of occupying multiple spaces simultaneously.