牛山 奎悟 Keigo Ushiyama


I am a Ph.D. student at University of Electro-Communications (UEC),  advised by Prof. Hiroyuki Kajimoto


2022.9 ~ 2023.4: visiting PhD at HCILab,  University of Chicago

2022.4 ~: a research fellow (JSPS DC1)


Email: ushiyama [at] kaji-lab.jp

[Lab Page | Twitter | CV]

Research Interests

I am interested in how people perceive their bodies and environments (outside of the body), and designing interaction techniques using illusory sensations. My current research centers on kinesthetic illusions. I proposed a movement feedback technique using the illusion for the VR environment, and I applied kinesthetic illusions to modulate the handheld object’s properties, such as heaviness and resistance.

Publications

Keigo Ushiyama and Pedro Lopes. 2023. FeetThrough: Electrotactile Foot Interface that Preserves Real-World Sensations. In Proceedings of the 36th Annual ACM Symposium on User Interface Software and Technology (UIST '23) [Web

Keigo Ushiyama, Akifumi Takahashi, and Hiroyuki Kajimoto, “Increasing Perceived Weight and Resistance by Applying Vibration to Tendons during Active Arm Movements”, Eurohaptics 2022, Hamburg, Germany [Web].

Keigo Ushiyama, Akifumi Takahashi, and Hiroyuki Kajimoto, “Modulation of a Hand-held Object’s Property through Proprioceptive Stimulation during Active Arm Movement,” Extended Abstracts of the 2021 CHI, Yokohama, Japan (Online).

[Web]

Keigo Ushiyama, Satoshi Tanaka, Akifumi Takahashi, and Hiroyuki Kajimoto. “Reinforcement of Kinesthetic Illusion by Simultaneous Multi-Point Vibratory Stimulation.” SIGGRAPH Asia 2019 Posters, Brisbane, Australia

[Web]

Keigo Ushiyama, Satoshi Tanaka, Akifumi Takahashi, and Hiroyuki Kajimoto. “The Effects of Simultaneous Multi-Point Vibratory Stimulation on Kinesthetic Illusion.” Eurohaptics 2020, Leiden, Netherlands

[Web]


Keigo Ushiyama, Satoshi Tanaka, Masahiro Miyakami, and Hiroyuki Kajimoto. “ViBaR: VR Platform Using Kinesthetic Illusions to Enhance Movement Experience.” SIGGRAPH 2020 Emerging Technologies, New York, NY, USA (Online)

[Web]

Exhibitions

Neighbor Invader (IVRC2020, a VR contest in Japan)

Neighbor Invader is a VR experience developed for a VR contest in Japan (IVRC). I was in charge of designing and developing the application. Neighbor Invader is inspired by concepts of adopting humans as actuators, such as Haptic Turk and Turk Deck. This project aims to create experiences with a few amounts of hardware and design human interactions in a house based on the COVID-19 situation. In this experience, a human is actuated to present sound and haptic feedback through a smartphone as the experience proceeds.

[Web (in japanese)]

Side projects

Electromyography (EMG)

I created a circuit using ESP32 for Electromyography.  This is a simple circuit that has two channels to measure muscle activities (there were some points I need to improve, though...). 

[Video]

News

2023.11 participated in "Haptics Workshop" at Tsukuba University and enjoyed great demos

2023.11 presented "FeetThrough" at UIST 2023 in San Francisco