Ryogo Niwa
丹羽 遼吾
PhD Student · University of Tsukuba
Event Topology-based Visual Vibrometer
A novel non-contact vibration measurement system using event cameras. By leveraging the topology of event streams, we achieve high-fidelity reconstruction of vibration amplitude and frequency without physical contact. Published as a Featured Article in Applied Physics Letters.
View ProjectEvent-based Visual Microphone
Recovery of sound from silent video using event cameras. Event cameras capture per-pixel brightness changes at microsecond resolution, enabling recovery of audible vibrations from objects — a significant improvement over classical visual microphone approaches using conventional cameras.
View ProjectCooperative Design Optimization through Natural Language Interaction
A system enabling collaborative design optimization through natural language dialogue. Users iteratively refine design objectives and constraints via conversational AI, making multi-objective engineering optimization more accessible and intuitive.
View ProjectDrone Badminton
An interactive experience combining drones and badminton, exploring new forms of human-drone interaction and physical play. Awarded the Accenture Interactive Prize at the Student CG Contest.
Air Talk-Starter (SHITARA)
SHITARA is a haptic notification device that delivers a tactile alarm via a ring-shaped air vortex. The system enables touch-like remote notification without physical contact, opening new possibilities for ambient and haptic communication.
Recent Publications
View all →Event Topology-based Visual Vibrometer
Applied Physics Letters · 2026Featured Article. Vol. 128, 074102.
Cooperative Design Optimization through Natural Language Interaction
ACM Symposium on User Interface Software and Technology (UIST 2025) · 2025
IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW 2023) · 2023
Awards & Honors
- 2023
Ezaki Award, University of Tsukuba Alumni Association
- 2023
Tsukuba Scholarship Research Encouragement
- 2024
JSPS Research Fellowship DC1 (¥2.3M)
Development of safe optical microphones and novel interaction paradigms
- 2023
Student Excellence Award, Acoustical Society of Japan
- 2022
Leave a Nest Research Grant, incu·be Award
- 2022
CREST AIP Network Lab Director Award
- 2022
CREST AIP Challenge Research Grant (¥1M)
- 2021
Drone Badminton — Student CG Contest, Accenture Interactive Award
Projects
View all →Event Topology-based Visual Vibrometer
Event-based Visual Microphone
Cooperative Design Optimization through Natural Language Interaction
Drone Badminton
Current Positions
- Apr 2024 – Mar 2027JSPS Research Fellow (DC1) · Japan Society for the Promotion of Science
- Dec 2024 – PresentPart-time Researcher · Digital Nature Group Research Center, University of Tsukuba