Phygital field: integrated field with visible images and robot swarm controlled by invisible images. - Takefumi Hiraki; Issei Takahashi; Shotaro Goto; Shogo Fukushima; Takeshi Naemura (SIGGRAPH Posters, 2015)

Sensible Shadow: Tactile Feedback from Your Own Shadow. - Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (AH, 2016)

Basic estimation of internal power harvesting in the mouth cavity. - Takefumi Hiraki; Yasuaki Kakehi; Yoshihiro Kawahara (UbiComp Adjunct, 2016)

Phygital field: an integrated field with a swarm of physical robots and digital images. - Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (SIGGRAPH ASIA Emerging Technologies, 2016)

Projection-based localization and navigation method for multiple mobile robots with pixel-level visible light communication. - Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (SII, 2016)

Phones on Wheels: Exploring Interaction for Smartphones with Kinetic Capabilities. - Takefumi Hiraki; Koya Narumi; Koji Yatani; Yoshihiro Kawahara (UIST (Adjunct Volume), 2016)

Imperceptible Color Vibration for Embedding Pixel-by-Pixel Data into LCD Images. - Satoshi Abe; Atsuro Arami; Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (CHI Extended Abstracts, 2017)

Projection-based Localization and Control Method of Robot Swarms for Swarm User Interfaces. - Takefumi Hiraki; Yoshihiro Kawahara; Takeshi Naemura (UbiComp/ISWC Adjunct, 2018)

Touchable Wall: Easy-to-Install Touch-Operated Large-Screen Projection System. - Takefumi Hiraki; Masaaki Fukumoto; Yoshihiro Kawahara (ISS, 2018)

Screen-Camera Communication via Matrix Barcode Utilizing Imperceptible Color Vibration. - Satoshi Abe; Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (UIST (Adjunct Volume), 2018)

NavigaTorch: Projection-based Robot Control Interface using High-speed Handheld Projector. - Takefumi Hiraki; Shogo Fukushima; Yoshihiro Kawahara; Takeshi Naemura (SIGGRAPH ASIA Emerging Technologies, 2019)

PILC Projector: RGB-IR Projector for Pixel-level Infrared Light Communication. - Ikuo Kamei; Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (VR, 2019)

PILC Projector: Image Projection With Pixel-Level Infrared Light Communication. - Ikuo Kamei; Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (IEEE Access, 2019)

Imperceptible AR Markers for Near-Screen Mobile Interaction. - Akira Matsumoto; Satoshi Abe; Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (IEEE Access, 2019)

Visuo-Haptic Display by Embedding Imperceptible Spatial Haptic Information into Projected Images. - Yamato Miyatake; Takefumi Hiraki; Tomosuke Maeda; Daisuke Iwai; Kosuke Sato (EuroHaptics, 2020)

Adaptive Visualization of Gas Distribution Using Augmented Reality Glasses. - Liyuan Duan; Haruka Matsukura; Parinya Punpongsanon; Takefumi Hiraki; Daisuke Iwai; Kosuke Sato (GCCE, 2020)

Extension of Projection Area using Head Orientation in Projected Virtual Hand Interface for Wheelchair Users. - Kohei Morita; Takefumi Hiraki; Haruka Matsukura; Daisuke Iwai; Kosuke Sato (SICE, 2020)

CoVR: Co-located Virtual Reality Experience Sharing for Facilitating Joint Attention via Projected View of HMD Users. - Ikuo Kamei; Changyo Han; Takefumi Hiraki; Shogo Fukushima; Takeshi Naemura (SIGGRAPH ASIA Emerging Technologies, 2020)

HaptoMapping: Visuo-Haptic AR System usingProjection-based Control of Wearable Haptic Devices. - Yamato Miyatake; Takefumi Hiraki; Tomosuke Maeda; Daisuke Iwai; Kosuke Sato (SIGGRAPH ASIA Emerging Technologies, 2020)

HaPouch: Soft and Wearable Haptic Display Devices using Liquid-to-gas Phase Change Actuator. - Ryusei Uramune; Hiroki Ishizuka; Takefumi Hiraki; Yoshihiro Kawahara; Sei Ikeda; Osamu Oshiro (UIST (Adjunct Volume), 2020)

Modifying Texture Perception With Pseudo-Haptic Feedback for a Projected Virtual Hand Interface. - Yushi Sato; Takefumi Hiraki; Naruki Tanabe; Haruka Matsukura; Daisuke Iwai; Kosuke Sato (IEEE Access, 2020)

IlluminatedFocus: Vision Augmentation using Spatial Defocusing via Focal Sweep Eyeglasses and High-Speed Projector. - Tatsuyuki Ueda; Daisuke Iwai; Takefumi Hiraki; Kosuke Sato (CoRR, 2020)

Laser Pouch Motors: Selective and Wireless Activation of Soft Actuators by Laser-Powered Liquid-to-Gas Phase Change. - Takefumi Hiraki; Kenichi Nakahara; Koya Narumi; Ryuma Niiyama; Noriaki Kida; Naoki Takamura; Hiroshi Okamoto; Yoshihiro Kawahara (IEEE Robotics Autom. Lett., 2020)

Illuminated Focus: Vision Augmentation using Spatial Defocusing via Focal Sweep Eyeglasses and High-Speed Projector. - Tatsuyuki Ueda; Daisuke Iwai; Takefumi Hiraki; Kosuke Sato (IEEE Trans. Vis. Comput. Graph., 2020)

Far-field Aerial Image Presentation of One Point by a Laser Source using Beam Scanning by Two-axis Galvanometer Mirror. - Yuri Mikawa; Masahiro Fujiwara; Takefumi Hiraki; Yasutoshi Makino; Hiroyuki Shinoda 001 (SICE, 2021)

Viewpoint Planning of Projector Placement for Spatial Augmented Reality using Star-Kernel Decomposition. - Takefumi Hiraki; Tomohiro Hayase; Yuichi Ike; Takashi Tsuboi; Michio Yoshiwaki (VR Workshops, 2021)

Micro Elastic Pouch Motors: Elastically Deformable and Miniaturized Soft Actuators Using Liquid-to-Gas Phase Change. - Seiya Hirai; Tatsuho Nagatomo; Takefumi Hiraki; Hiroki Ishizuka; Yoshihiro Kawahara; Norihisa Miki (IEEE Robotics Autom. Lett., 2021)

Accelerated and Optimized Search of Imperceptible Color Vibration for Embedding Information into LCD images. - Shingo Hattori; Takefumi Hiraki (SIGGRAPH Asia Posters, 2022)

InfiniteShader: Color Changeable 3D Printed Objects using Bi-Stable Thermochromic Materials. - Yuto Umetsu; Parinya Punpongsanon; Takefumi Hiraki (SIGGRAPH Asia Posters, 2022)

AirHaptics: Vibrotactile Presentation Method using an Airflow from Audio Speakers of Smart Devices. - Madoka Ito; Ryota Sakuma; Hiroki Ishizuka; Takefumi Hiraki (VRST, 2022)

HaPouch: A Miniaturized, Soft, and Wearable Haptic Display Device Using a Liquid-to-Gas Phase Change Actuator. - Ryusei Uramune; Hiroki Ishizuka; Takefumi Hiraki; Yoshihiro Kawahara; Sei Ikeda; Osamu Oshiro (IEEE Access, 2022)

Machine-Learning-Based Fine Tuning of Input Signals for Mechano-Tactile Display. - Shuto Yamanaka; Tatsuho Nagatomo; Takefumi Hiraki; Hiroki Ishizuka; Norihisa Miki (Sensors, 2022)

Unsupervised Learning Enables Extraction of Tactile Information From Text Database. - Tatsuho Nagatomo; Takefumi Hiraki; Hiroki Ishizuka; Norihisa Miki (IEEE Access, 2023)

Shadowless Projection Mapping using Retrotransmissive Optics. - Kosuke Hiratani; Daisuke Iwai; Yuta Kageyama; Parinya Punpongsanon; Takefumi Hiraki; Kosuke Sato (IEEE Trans. Vis. Comput. Graph., 2023)

HaptoMapping: Visuo-Haptic Augmented Reality by Embedding User-Imperceptible Tactile Display Control Signals in a Projected Image. - Yamato Miyatake; Takefumi Hiraki; Daisuke Iwai; Kosuke Sato (IEEE Trans. Vis. Comput. Graph., 2023)

Swarm Body: Embodied Swarm Robots. - Sosuke Ichihashi; So Kuroki; Mai Nishimura; Kazumi Kasaura; Takefumi Hiraki; Kazutoshi Tanaka; Shigeo Yoshida (CHI, 2024)

TactPrint: 3D Printing Lattice-based Tactile Displays with Optimized and Local Vibration. - Ryota Sakuma; Koya Narumi; Yoshihiro Kawahara; Takefumi Hiraki (CHI Extended Abstracts, 2024)

Robot Swarm Control Based on Smoothed Particle Hydrodynamics for Obstacle-Unaware Navigation. - Michikuni Eguchi; Mai Nishimura; Shigeo Yoshida; Takefumi Hiraki (IROS, 2024)

FactoredSweeper: Optical See-Through Display Integrating Light Attenuation and Addition with Single Spatial Light Modulator. - Yuichi Hiroi; Takefumi Hiraki; Yuta Itoh 001 (ISMAR, 2024)

MetaGadget: IoT Framework for Event-Triggered Integration of User-Developed Devices into Commercial Metaverse Platforms. - Ryutaro Kurai; Yuichi Hiroi; Takefumi Hiraki (ISMAR-Adjunct, 2024)

Design and Implementation of Agent APIs for Large-Scale Social VR Platforms. - Ryutaro Kurai; Takefumi Hiraki; Yuichi Hiroi; Yutaro Hirao; Monica Perusquía-Hernández; Hideaki Uchiyama; Kiyoshi Kiyokawa (VR Workshops, 2024)

Relationship Between Interoceptive Accuracy and Tactile Exploration Behavior. - H. Aso; Hiroki Ishizuka; Takefumi Hiraki; Yasuyo Minagawa-Kawai; Norihisa Miki (IEEE Access, 2024)

Measurement of the Imperceptible Threshold for Color Vibration Pairs Selected by using MacAdam Ellipse. - Shingo Hattori; Yuichi Hiroi; Takefumi Hiraki (CoRR, 2024)

MagicItem: Dynamic Behavior Design of Virtual Objects with Large Language Models in a Consumer Metaverse Platform. - Ryutaro Kurai; Takefumi Hiraki; Yuichi Hiroi; Yutaro Hirao; Monica Perusquía-Hernández; Hideaki Uchiyama; Kiyoshi Kiyokawa (CoRR, 2024)

Cluster Haptic Texture Database: Haptic Texture Database with Variety in Velocity and Direction of Sliding Contacts. - Michikuni Eguchi; Madoka Ito; Tomohiro Hayase; Yuichi Hiroi; Takefumi Hiraki (CoRR, 2024)

A Soft Vibrotactile Display Using Sound Speakers. - Keitaro Ihara; Atsuya Baba; Hiroki Ishizuka; Takefumi Hiraki; Osamu Oshiro (CoRR, 2024)

StainedSweeper: Compact, Variable-Intensity Light-Attenuation Display with Sweeping Tunable Retarders. - Yuichi Hiroi; Takefumi Hiraki; Yuta Itoh 001 (IEEE Trans. Vis. Comput. Graph., 2024)

HaptoFloater: Visuo-Haptic Augmented Reality by Embedding Imperceptible Color Vibration Signals for Tactile Display Control in a Mid-Air Image. - Rina Nagano; Takahiro Kinoshita; Shingo Hattori; Yuichi Hiroi; Yuta Itoh 001; Takefumi Hiraki (IEEE Trans. Vis. Comput. Graph., 2024)

ChromaGazer-HMD: Visual Modulation using Unobtrusive Color Vibration for Gaze Guidance with Head-Mounted Displays. - Youfang Shen; Rinto Tosa; Yuji Hatada; Yuichi Hiroi; Takefumi Hiraki; Takeshi Naemura (AHs, 2025)

Navigation Pixie: Implementation and Empirical Study Toward on-Demand Navigation Agents in Commercial Metaverse. - Hikari Yanagawa; Yuichi Hiroi; Satomi Tokida; Yuji Hatada; Takefumi Hiraki (ISMAR, 2025)

The 2nd Workshop on Seamless Reality: AR Technologies for Seamless Perception and Cognition between Cyber and Physical Spaces. - Yuta Itoh 001; Etienne Peillard; Yuichi Hiroi; Takefumi Hiraki (VR Workshops, 2025)

An implementation of MagicCraft: Generating Interactive 3D Objects and Their Behaviors from Text for Commercial Metaverse Platforms. - Ryutaro Kurai; Takefumi Hiraki; Yuichi Hiroi; Yutaro Hirao; Monica Perusquía-Hernández; Hideaki Uchiyama; Kiyoshi Kiyokawa (VR Workshops, 2025)

Development of Digital Twin Environment through Integration of Commercial Metaverse Platform and IoT Sensors of Smart Building. - Yusuke Masubuchi; Takefumi Hiraki; Yuichi Hiroi; Masanori Ibara; Kazuki Matsutani; Megumi Zaizen; Junya Morita (VR Workshops, 2025)

MagicItem: Dynamic Behavior Design of Virtual Objects With Large Language Models in a Commercial Metaverse Platform. - Ryutaro Kurai; Takefumi Hiraki; Yuichi Hiroi; Yutaro Hirao; Monica Perusquía-Hernández; Hideaki Uchiyama; Kiyoshi Kiyokawa (IEEE Access, 2025)

MagicCraft: Natural Language-Driven Generation of Dynamic and Interactive 3D Objects for Commercial Metaverse Platforms. - Ryutaro Kurai; Takefumi Hiraki; Yuichi Hiroi; Yutaro Hirao; Monica Perusquía-Hernández; Hideaki Uchiyama; Kiyoshi Kiyokawa (IEEE Access, 2025)

MetaGadget: An Accessible Framework for IoT Integration into Commercial Metaverse Platforms. - Ryutaro Kurai; Hikari Yanagawa; Yuichi Hiroi; Takefumi Hiraki (CoRR, 2025)

LUIDA: Large-scale Unified Infrastructure for Digital Assessments based on Commercial Metaverse Platform. - Yong-Hao Hu; Sotaro Yokoi; Yuji Hatada; Yuichi Hiroi; Takuji Narumi; Takefumi Hiraki (CoRR, 2025)

Cross-Reality Lifestyle: Integrating Physical and Virtual Lives through Multi-Platform Metaverse. - Yuichi Hiroi; Yuji Hatada; Takefumi Hiraki (CoRR, 2025)

ChromaGazer: Unobtrusive Visual Modulation using Imperceptible Color Vibration for Visual Guidance. - Rinto Tosa; Shingo Hattori; Yuichi Hiroi; Yuta Itoh 001; Takefumi Hiraki (IEEE Trans. Vis. Comput. Graph., 2025)

Fluidic robot swarm control for obstacle-unaware navigation. - Michikuni Eguchi; Mai Nishimura; Shigeo Yoshida; Takefumi Hiraki (Adv. Robotics, 2025)

Implementation and Application of Multi-Format 3D Data Integration in a Cross-Device Commercial Metaverse Platform. - Masanori Ibara; Yuichi Hiroi; Takushi Kamegai; Takefumi Hiraki (CoRR, 2025)

Computational Design and Fabrication of Modular Robots with Untethered Control. - Manas Bhargava; Takefumi Hiraki; Malina Strugaru; Yuhan Zhang; Michal Piovarci; Chiara Daraio; Daisuke Iwai; Bernd Bickel (CoRR, 2025)

Community Analysis of Social Virtual Reality Based on Large-Scale Log Data of a Commercial Metaverse Platform. - Hiroto Tsutsui; Takefumi Hiraki; Yuichi Hiroi; Shoichi Hasegawa (CoRR, 2025)