Portrait of Jiayi Xu

Human–Computer Interaction · Haptics · Virtual Reality

Jiayi Xu 許 佳禕

Project Assistant Professor, The University of Tokyo
Inami & Monnai Lab, RCAST

I lead research on the body as an interface. With my students and collaborators, I build interactive systems that sense, stimulate and extend the human body, spanning multisensory feedback, physiological sensing and wearable robotics.

Our work appears in leading journals and conferences in HCI, virtual reality and haptics, and has reached the public through CES, the world’s largest tech show, and Japan’s public broadcaster NHK. I am principal investigator of two JSPS KAKENHI grants and received my Ph.D. in Engineering from the University of Tsukuba in 2023.

Research IDs ORCID researchmap KAKEN J-GLOBAL

I welcome motivated students, interns and industry partners.

News

Recent Projects All projects

SIGGRAPH Asia 2026 E-Tech · CES 2026

MoHeat Evo

A directional thermal headphone for spatial audio: LED heating, ethanol-mist cooling and per-ear control in one device. Joint research with Suntory, featured on NHK WORLD.

Project page

SIGGRAPH Asia 2026 E-Tech

Armonii Sway

Wearable robotic arms guided by natural body motion.

SIGGRAPH Asia 2026 E-Tech

AdaptiveFly

An adaptive embodied control framework for navigation and teleoperation.

AsiaHaptics 2026

ThermoTune

High-speed thermal rendering of music-evoked emotion.

IEEE VR 2026 · IEEE TVCG

ChillFactor

Highly-responsive non-contact cooling for VR headsets based on alcohol-mist evaporation.

DOI

SIGGRAPH Asia 2025

Feel What You See

Linking visual heat cues in videos to instant thermal feedback.

DOI

AsiaHaptics 2024

MoHeat

A modular platform for high-responsive non-contact thermal feedback interactions.

arXiv

Research

Computers have learned to speak to our eyes and ears. To the rest of the body, they remain almost silent.

Warmth, touch, posture and inner state shape how we experience the world, yet interactive systems rarely treat them as media to design with. I aim to make the body itself a first-class interface, one that can render sensations, read a person’s state and extend what the body can do, starting from quantitative models of human perception.

  1. 01 · Render

    Multisensory feedback

    Can touch and temperature become as immediate and expressive as light and sound? I design thermal and tactile displays grounded in models of skin and perception.

  2. 02 · Read

    Human-state sensing

    What can the body tell an interface? I sense subtle physiological and motor signals so that systems understand a person’s state without explicit input.

  3. 03 · Extend

    Embodied augmentation

    How do we build technology the body accepts as its own? I study how people move, extend and adapt with robotic limbs and haptic guidance.

Looking ahead. I want to close the loop between these threads: body-adaptive interfaces that read a person’s state, render sensations tuned to their perception and reshape what their body can do in real time, validated in communication, media and healthcare with industry partners.

Publications

  • Journal
  • Conference
  • Demo
  • Domestic (JP)
  • Article

2026

  1. TVCG

    ChillFactor: A Highly-Responsive Non-Contact Cooling Feedback Interface for VR Headsets Based on Alcohol Mist Evaporation

    J. Xu, C. A. Fan, Y. Guo, Y. Kuroda and M. Inami

    IEEE Transactions on Visualization and Computer Graphics (Proc. IEEE VR 2026), 32(5), 4041–4050 DOI PDF

  2. UIST

    Armonii: Motion Design for Wearable Supernumerary Robotic Arms Toward Comfort and Embodiment

    C. A. Fan, H. Zhou, A. Maekawa, T. Sasaki, J. Xu and M. Inami

    ACM UIST 2026

  3. EuroHaptics

    Achieving Full-Body Heat Perception in VR through Spatially Congruent Facial Thermal Remapping

    J. Xu, T. Lei, C. A. Fan and M. Inami

    EuroHaptics 2026 DOI

  4. AHs

    A Haptic Guidance Method that Conveys Motion Error Magnitude via Haptic Localization Around the Arm

    Y. Zheng, J. Xu, C. A. Fan and Y. Monnai

    Augmented Humans 2026, 41–51 DOI PDF

  5. AHs

    AdaptiveFly: Bio-Congruent Adaptation for Embodied 3D Locomotion

    L. Kong, A. Dechaux, M. Yoshida, H. Asahi, J. Xu, G. Gowrishankar and M. Inami

    Augmented Humans 2026, 345–356 DOI PDF

  6. AHs

    A Design Framework for Virtual Space based on Spectral Relationships

    H. Wang, H. Asahi, R. Shao, K. Sakurada, H. Saito, J. Xu, K. Kondo, T. Tokoro and M. Inami

    Augmented Humans 2026, 141–152 DOI PDF

  7. SIGGRAPH Asia

    MoHeat Evo: A Directional Thermal Headphone for Spatial Audio

    J. Xu, L. Kong, K. Sakurada, N. Obushi and M. Inami

    ACM SIGGRAPH Asia 2026 Emerging Technologies Project

  8. SIGGRAPH Asia

    Armonii Sway: Wearable Robotic Arms Guided by Natural Body Motion

    C. A. Fan, H. Zhou, A. Maekawa, T. Sasaki, J. Xu, H. Asahi, H. Shimobayashi and M. Inami

    ACM SIGGRAPH Asia 2026 Emerging Technologies

  9. SIGGRAPH Asia

    AdaptiveFly: An Adaptive Embodied Control Framework for Navigation and Teleoperation

    L. Kong, A. Dechaux, T. Yoshida, H. Zhang, S. Vishakan, J. Xu, G. Ganesh and M. Inami

    ACM SIGGRAPH Asia 2026 Emerging Technologies

  10. AsiaHaptics

    NailShear: A Fingerpad-Free Wearable for Directional Haptic Cues via Paronychial Skin Stretch

    Y. Xu, J. Xu, S. Hasegawa and T. Narumi

    AsiaHaptics 2026

  11. AsiaHaptics

    ThermoTune: High-Speed Thermal Rendering of Music-Evoked Emotion

    K. Watanabe, J. Xu, K. Chen and M. Inami

    AsiaHaptics 2026

  12. VRSJ

    Valence-Arousal モデルに基づく高速温冷刺激を用いた音楽体験拡張に関する検討

    渡辺功侑, 許佳禕, 稲見昌彦

    第31回日本バーチャルリアリティ学会大会 PDF

  13. Article

    感覚はどこまで拡張できるのか ～「MoHeat Evo」が拓く視聴覚×温度インターフェース～

    許佳禕

    映画テレビ技術, No. 887, 37–39

2025

  1. Sci. Rep.

    Monitoring the effect of alcohol intake via facial temperature variations using thermography synchronized with heartbeat

    N. Kotani, K. Sakurada, J. Xu, M. Inami and Y. Monnai

    Scientific Reports, 15, 32249 DOI PDF

  2. HIS Trans.

    皮膚温度変化の時間積分量に基づく温覚制御手法の開発

    名嘉村和真, 伊藤天翔, 許佳禕, 長谷川晶一, 家永直人, 黒田嘉宏

    ヒューマンインタフェース学会論文誌, 27(4), 341–350

  3. SICE

    Synchro-Thermography: Monitoring ~10 mK Facial Temperature Changes with Heartbeat Referencing for Physiological Sensing

    N. Kotani, K. Sakurada, J. Xu, M. Inami and Y. Monnai

    SICE Annual Conference 2025, 1249–1254 DOI PDF

  4. WHC

    360-Degree Cold Sensation Presentation via Encircling Airflow Based on the Coandă Effect

    K. Akimoto, J. Xu, A. Kaneko, N. Ienaga and Y. Kuroda

    IEEE World Haptics Conference 2025 DOI

  5. SIGGRAPH Asia

    Feel What You See: A Novel Sensory Interface Linking Visual Heat Cues and Instant Thermal Feedback

    J. Xu*, K. Chen*, Y. Kuroda, I. Kitahara and M. Inami (*equal contribution)

    SIGGRAPH Asia 2025 DOI

  6. VRSJ

    非侵襲的温熱刺激による飲用時の主観的印象変容を目的としたシステムの開発

    何紀婷, 許佳禕, 櫻田国治, 齊藤寛人, 門内靖明, 稲見昌彦

    第30回日本バーチャルリアリティ学会大会 PDF

  7. Article

    温度感覚のバーチャルリアリティと人間の感覚

    黒田嘉宏, 許佳禕

    理科資料, 97

2024

  1. IEEE Access

    PhaseMix: A Periodic Motion Fusion Method for Adult Spinal Deformity Classification

    K. Chen, J. Xu, T. Asada, K. Miura, K. Sakashita, T. Sunami, H. Kadone, M. Yamazaki, N. Ienaga and Y. Kuroda

    IEEE Access, 12, 152358–152376 DOI PDF

  2. ICAT-EGVE

    Representation of Humidity Change Based on Heating the Local Skin

    Y. Kuroda, S. Tamaki, J. Xu, S. Hasegawa and N. Ienaga

    ICAT-EGVE 2024 DOI PDF

  3. AMC

    Machine Learning-Based Deformation Estimation for Grasping 3D Soft Objects

    J. Xu and Y. Aiyama

    IEEE AMC 2024, 1–6 DOI

  4. AsiaHaptics

    MoHeat: A Modular Platform for High-Responsive Non-Contact Thermal Feedback Interactions

    J. Xu, K. Nakamura, Y. Kuroda and M. Inami

    AsiaHaptics 2024 arXiv PDF

  5. AsiaHaptics

    DynaPain: Moving Flame Beetle with Dynamic Pain Illusion Adapting Apparent Movement to Thermal Grill Illusion

    S. Mizuno, J. Xu, S. Hasegawa, N. Ienaga and Y. Kuroda

    AsiaHaptics 2024 PDF

  6. HI Symp.

    非接触提示による温知覚制御手法の開発

    名嘉村和真, 許佳禕, 長谷川晶一, 家永直人, 黒田嘉宏

    ヒューマンインタフェースシンポジウム2024

  7. VRSJ

    仮現運動による痛み錯覚の移動感提示装置の開発

    水野蒼太, 許佳禕, 長谷川晶一, 家永直人, 黒田嘉宏

    第29回日本バーチャルリアリティ学会大会 PDF

  8. VRSJ

    コアンダ効果を利用した局所冷刺激による一体感提示

    秋元快成, 許佳禕, 金子暁子, 家永直人, 黒田嘉宏

    第29回日本バーチャルリアリティ学会大会 PDF

  9. JSMVR

    作業中の覚醒度低下を防ぐための変調気流提示装置

    汪君逸, 陳凱旭, 許佳禕, 家永直人, 黒田嘉宏

    第23回日本VR医学会学術大会

2023

  1. ToH

    Integration of Independent Heat Transfer Mechanisms for Non-Contact Cold Sensation Presentation with Low Residual Heat

    J. Xu, S. Hasegawa, K. Kiyokawa, N. Ienaga and Y. Kuroda

    IEEE Transactions on Haptics, 16(4), 770–784 DOI arXiv PDF

  2. WHC

    Spatially Continuous Non-Contact Cold Sensation Presentation Based on Low-Temperature Airflows

    K. Makino, J. Xu, A. Kaneko, N. Ienaga and Y. Kuroda

    IEEE World Haptics Conference 2023, 223–229 DOI PDF

  3. JSMVR

    教育訓練支援のための着座型温冷刺激装置による覚醒度変化に関する研究

    張皖瑾, 許佳禕, 家永直人, 黒田嘉宏

    第22回日本VR医学会学術大会

  4. VRSJ

    非接触痛み錯覚提示装置の開発

    水野蒼太, 許佳禕, 長谷川晶一, 家永直人, 黒田嘉宏

    第28回日本バーチャルリアリティ学会大会 PDF

  5. VRSJ

    冷気流群を用いた非接触首型冷覚提示デバイス

    秋元快成, 許佳禕, 家永直人, 黒田嘉宏

    第28回日本バーチャルリアリティ学会大会 PDF

  6. HIS SIGMAS

    非接触温冷刺激による即時的な温度フィードバック体験

    張皖瑾, 許佳禕, 家永直人, 黒田嘉宏

    ヒューマンインタフェース学会研究会 SIGMAS-15

2022

  1. ToH

    Intensity-Adjustable Non-Contact Cold Sensation Presentation Based on the Vortex Effect

    J. Xu, S. Yoshimoto, N. Ienaga and Y. Kuroda

    IEEE Transactions on Haptics, 15(3), 592–602 DOI arXiv PDF

  2. AsiaHaptics

    HeatMagic: Intensity-adjustable Thermal Feedback System Based on the Vortex Effect and Thermal Radiation for Non-contact Thermal Interaction

    J. Xu, S. Tamaki, K. Makino, S. Yoshimoto, H. Hasegawa, N. Ienaga and Y. Kuroda

    AsiaHaptics 2022

  3. VRSJ

    皮膚温度変化をゼロに保ちつつ感覚を生じさせる非接触冷覚提示

    許佳禕, 長谷川晶一, 清川清, 家永直人, 黒田嘉宏

    第27回日本バーチャルリアリティ学会大会 PDF

  4. VRSJ

    冷気流群による一体感のある冷空間VRシステムの開発

    牧野皓陽, 許佳禕, 家永直人, 金子暁子, 黒田嘉宏

    第27回日本バーチャルリアリティ学会大会 PDF

  5. HI Symp.

    独立温湿度刺激による乾燥湿潤VRシステムの開発

    玉木聖悟, 許佳禕, 家永直人, 黒田嘉宏

    ヒューマンインタフェースシンポジウム2022

  6. HIS SIGMAS

    非接触温冷刺激による即時的な温度フィードバック体験

    許佳禕, 清川清, 長谷川晶一, 家永直人, 黒田嘉宏

    ヒューマンインタフェース学会研究会 SIGMAS-13

  7. HIS SIGMAS

    温湿度の独立制御による蒸し暑さ提示デバイスの開発

    玉木聖悟, 許佳禕, 家永直人, 黒田嘉宏

    ヒューマンインタフェース学会研究会 SIGMAS-13

2021

  1. VRSJ

    不連続的な温度変化による非接触冷覚の連続性に関する評価

    許佳禕, 長谷川晶一, 黒田嘉宏

    第26回日本バーチャルリアリティ学会大会 PDF

2020

  1. HI Colloq.

    非接触温冷刺激の時分割提示手法の開発

    許佳禕, 長谷川晶一, 黒田嘉宏

    ヒューマンインタフェースサイバーコロキウム2020, 314–317

  2. VRSJ

    即時的な非接触冷覚を制御するための冷却モデルのパラメータ推定

    許佳禕, 吉元俊輔, 石塚裕己, 池田聖, 黒田嘉宏

    第25回日本バーチャルリアリティ学会大会

2019

  1. WHC

    Non-contact Cold Thermal Display by Controlling Low-temperature Air Flow Generated with Vortex Tube

    J. Xu, Y. Kuroda, S. Yoshimoto and O. Oshiro

    IEEE World Haptics Conference 2019, 133–138 DOI PDF

  2. WHC

    Creating an Immersive Experience in a Cooling World with a Non-Contact Cold Thermal Display using Vortex Tube

    J. Xu, Y. Kuroda, S. Yoshimoto, H. Ishizuka and O. Oshiro

    IEEE World Haptics Conference 2019, Demo

  3. Haptics WG

    冷気流による温度変化を表す物理モデルの構築

    許佳禕, 黒田嘉宏, 吉元俊輔, 石塚裕己, 池田聖, 大城理

    ハプティクス研究委員会 第23回研究会, 17–20

  4. ISCIE

    冷気の流速制御による非接触型冷覚提示

    許佳禕, 黒田嘉宏, 吉元俊輔, 大城理

    第63回システム制御情報学会研究発表講演会, 413–417

2018

  1. SICE SI

    非接触冷覚提示のためのボルテックスチューブを用いた冷気生成システム

    許佳禕, 黒田嘉宏, 吉元俊輔, 大城理

    第19回計測自動制御学会システムインテグレーション部門講演会, 546–548

Patents 4

CV

Appointments

  1. Project Assistant ProfessorInami & Monnai Lab, RCAST, The University of Tokyo
  2. Project ResearcherInami & Monnai Lab, RCAST, The University of Tokyo
  3. ResearcherAiyama Lab, University of Tsukuba
  4. Research StudentOshiro Lab, School of Engineering Science, Osaka University

Education

  1. Ph.D. in EngineeringLife Engineering Lab, Systems and Information Engineering, University of Tsukuba
  2. M.Eng. in EngineeringOshiro Lab, Graduate School of Engineering Science, Osaka University
  3. B.Eng. in Software EngineeringWuhan University of Science and Technology, China

Grants

  1. JSPS KAKENHI Grant-in-Aid for Early-Career ScientistsPrincipal Investigator · Transforming and Extending Perceptual Experience through Non-contact High-speed Thermal Stimulation (26K21268)
  2. JSPS KAKENHI Grant-in-Aid for Research Activity Start-upPrincipal Investigator · Non-contact High-speed Thermal Sensation Presentation Using Airflow and Terahertz Waves (24K23883)
  3. JST SPRING FellowshipUniversity of Tsukuba

Awards

  1. Best Student Paper Honorable MentionAugmented Humans 2026
  2. 26th Paper AwardHuman Interface Society
  3. Best Paper Award FinalistICAT-EGVE 2024
  4. Honorable Mention AwardAsiaHaptics 2024
  5. Academic Encouragement Award27th VRSJ Annual Conference
  6. Best Demonstration Award, BronzeAsiaHaptics 2022 Tokyo Satellite
  7. Grand PrizeUniversity of Tsukuba EDGE-NEXT
  8. Excellent Presentation AwardHuman Interface Cyber Colloquium

Service

  1. Program CommitteeSIGGRAPH Asia E-Tech 2025, 2026 · Augmented Humans 2026 · ICAT-EGVE 2025
  2. CommitteesHaptics Committee, Virtual Reality Society of Japan (2026–) · Judge, IVRC 2026
  3. ReviewerIEEE VR, IEEE WHC, ICAT-EGVE, AHs · IEEE ToH, Computers & Graphics

Invited talks

  1. Lightning talk, Listening Through the Body — NRF-ASPIRE Workshop 2026make Lab, KAIST, Seoul, Korea

Teaching & mentoring

  1. Guest lecture, Special Lecture on Artificial RealityGraduate course, The University of Tokyo
  2. First-Year Seminar: Practical CyberneticsThe University of Tokyo
  3. Student supervision3 master’s graduates; currently 2 master’s students and interns

Media

Contact

I’m open to collaboration with researchers, students and industry.

Email

xu.jiayi@star.rcast.u-tokyo.ac.jp

Address

Inami & Monnai Lab
Research Center for Advanced Science and Technology
The University of Tokyo