How much do you read?: counting the number of words a user reads using electrooculography. - Kai Kunze; Masai Katsutoshi; Yuji Uema; Masahiko Inami (AH, 2015)

Quantifying reading habits: counting how many words you read. - Kai Kunze; Katsutoshi Masai; Masahiko Inami; Ömer Sacakli; Marcus Liwicki; Andreas Dengel 001; Shoya Ishimaru; Koichi Kise (UbiComp, 2015)

AffectiveWear: towards recognizing affect in real life. - Katsutoshi Masai; Yuta Sugiura; Katsuhiro Suzuki; Sho Shimamura; Kai Kunze; Masa Ogata; Masahiko Inami; Maki Sugimoto (UbiComp/ISWC Adjunct, 2015)

AffectiveWear: toward recognizing facial expression. - Katsutoshi Masai; Yuta Sugiura; Masa Ogata; Katsuhiro Suzuki; Fumihiko Nakamura; Sho Shimamura; Kai Kunze; Masahiko Inami; Maki Sugimoto (SIGGRAPH Posters, 2015)

MEME: smart glasses to promote healthy habits for knowledge workers. - Kai Kunze; Kazutaka Inoue; Katsutoshi Masai; Yuji Uema; Sean Shao-An Tsai; Shoya Ishimaru; Katsuma Tanaka; Koichi Kise; Masahiko Inami (SIGGRAPH Emerging Technologies, 2015)

Is It in Your Eyes? Explorations in Using Gaze Cues for Remote Collaboration. - Mark Billinghurst; Kunal Gupta; Masai Katsutoshi; Youngho Lee; Gun A. Lee; Kai Kunze; Maki Sugimoto (Collaboration Meets Interactive Spaces, 2016)

Analysis of Multiple Users' Experience in Daily Life Using Wearable Device for Facial Expression Recognition. - Katsutoshi Masai; Yuta Itoh 001; Yuta Sugiura; Maki Sugimoto (ACE, 2016)

Empathy Glasses. - Katsutoshi Masai; Kai Kunze; Maki Sugimoto; Mark Billinghurst (CHI Extended Abstracts, 2016)

A Remote Collaboration System with Empathy Glasses. - Youngho Lee; Katsutoshi Masai; Kai Kunze; Maki Sugimoto; Mark Billinghurst (ISMAR Adjunct, 2016)

Facial Expression Recognition in Daily Life by Embedded Photo Reflective Sensors on Smart Eyewear. - Katsutoshi Masai; Yuta Sugiura; Masa Ogata; Kai Kunze; Masahiko Inami; Maki Sugimoto (IUI, 2016)

Facial Expression Mapping inside Head Mounted Display by Embedded Optical Sensors. - Katsuhiro Suzuki; Fumihiko Nakamura; Jiu Otsuka; Katsutoshi Masai; Yuta Itoh 001; Yuta Sugiura; Maki Sugimoto (UIST (Adjunct Volume), 2016)

Demo hour. - Hayeon Jeong; Daniel Saakes; Uichin Lee; Augusto Esteves; Eduardo Velloso; Andreas Bulling; Katsutoshi Masai; Yuta Sugiura; Masa Ogata; Kai Kunze; Masahiko Inami; Maki Sugimoto; et al. (Interactions, 2016)

ACTUATE racket: designing intervention of user's performance through controlling angle of racket surface. - Katsutoshi Masai; Yuta Sugiura; Maki Sugimoto (AH, 2017)

Facial Performance Capture by Embedded Photo Reflective Sensors on A Smart Eyewear. - Nao Asano; Katsutoshi Masai; Yuta Sugiura; Maki Sugimoto (ICAT-EGVE, 2017)

RacketAvatar that Expresses Intention of Avatar and User. - Katsutoshi Masai; Yuta Sugiura; Michita Imai; Maki Sugimoto (HRI (Companion), 2017)

EarTouch: turning the ear into an input surface. - Takashi Kikuchi; Yuta Sugiura; Katsutoshi Masai; Maki Sugimoto; Bruce H. Thomas (MobileHCI, 2017)

Recognition and mapping of facial expressions to avatar by embedded photo reflective sensors in head mounted display. - Katsuhiro Suzuki; Fumihiko Nakamura; Jiu Otsuka; Katsutoshi Masai; Yuta Itoh 001; Yuta Sugiura; Maki Sugimoto (VR, 2017)

CheekInput: turning your cheek into an input surface by embedded optical sensors on a head-mounted display. - Koki Yamashita; Takashi Kikuchi; Katsutoshi Masai; Maki Sugimoto; Bruce H. Thomas; Yuta Sugiura (VRST, 2017)

Evaluation of Facial Expression Recognition by a Smart Eyewear for Facial Direction Changes, Repeatability, and Positional Drift. - Katsutoshi Masai; Kai Kunze; Yuta Sugiura; Masa Ogata; Masahiko Inami; Maki Sugimoto (ACM Trans. Interact. Intell. Syst., 2017)

FaceRubbing: Input Technique by Rubbing Face using Optical Sensors on Smart Eyewear for Facial Expression Recognition. - Katsutoshi Masai; Yuta Sugiura; Maki Sugimoto (AH, 2018)

Mapping Natural Facial Expressions Using Unsupervised Learning and Optical Sensors on Smart Eyewear. - Katsutoshi Masai; Kai Kunze; Yuta Sugiura; Maki Sugimoto (UbiComp/ISWC Adjunct, 2018)

Development of a Virtual Environment for Motion Analysis of Tennis Service Returns. - Kei Saito; Katsutoshi Masai; Yuta Sugiura; Toshitaka Kimura; Maki Sugimoto (MMSports@MM, 2018)

3D facial geometry analysis and estimation using embedded optical sensors on smart eyewear. - Nao Asano; Katsutoshi Masai; Yuta Sugiura; Maki Sugimoto (SIGGRAPH Posters, 2018)

FaceDrive: Facial Expression Driven Operation to Control Virtual Supernumerary Robotic Arms. - Masaaki Fukuoka; Adrien Verhulst; Fumihiko Nakamura; Ryo Takizawa; Katsutoshi Masai; Maki Sugimoto (ICAT-EGVE, 2019)

Automatic Labeling of Training Data by Vowel Recognition for Mouth Shape Recognition with Optical Sensors Embedded in Head-Mounted Display. - Fumihiko Nakamura; Katsuhiro Suzuki; Katsutoshi Masai; Yuta Itoh 001; Yuta Sugiura; Maki Sugimoto (ICAT-EGVE, 2019)

ReallifeEngine: A Mixed Reality-Based Visual Programming System for SmartHomes. - Ryohei Suzuki; Katsutoshi Masai; Maki Sugimoto (ICAT-EGVE, 2019)

AffectiveHMD: facial expression recognition in head mounted display using embedded photo reflective sensors. - Masaaki Murakami; Kosuke Kikui; Katsuhiro Suzuki; Fumihiko Nakamura; Masaaki Fukuoka; Katsutoshi Masai; Yuta Sugiura; Maki Sugimoto (SIGGRAPH Emerging Technologies, 2019)

Eye-based Interaction Using Embedded Optical Sensors on an Eyewear Device for Facial Expression Recognition. - Katsutoshi Masai; Kai Kunze; Maki Sugimoto (AHs, 2020)

e2-MaskZ: a Mask-type Display with Facial Expression Identification using Embedded Photo Reflective Sensors. - Akino Umezawa; Yoshinari Takegawa; Katsuhiro Suzuki; Katsutoshi Masai; Yuta Sugiura; Maki Sugimoto; Yutaka Tokuda; Diego Martínez Plasencia; Sriram Subramanian; Masafumi Takahashi; Hiroaki Taka; Keiji Hirata 001 (AHs, 2020)

Face Commands - User-Defined Facial Gestures for Smart Glasses. - Katsutoshi Masai; Kai Kunze; Daisuke Sakamoto; Yuta Sugiura; Maki Sugimoto (ISMAR, 2020)

Digital Full-Face Mask Display with Expression Recognition using Embedded Photo Reflective Sensor Arrays. - Yoshinari Takegawa; Yutaka Tokuda; Akino Umezawa; Katsuhiro Suzuki; Katsutoshi Masai; Yuta Sugiura; Maki Sugimoto; Diego Martínez Plasencia; Sriram Subramanian; Keiji Hirata 001 (ISMAR, 2020)

Classification of Spontaneous and Posed Smiles by Photo-reflective Sensors Embedded with Smart Eyewear. - Chisa Saito; Katsutoshi Masai; Maki Sugimoto (TEI, 2020)

Study of Interviewee's ImpressionMade by Interviewer Wearing Digital Full-face Mask DisplayDuring Recruitment Interview. - Kureha Noguchi; Yoshinari Takegawa; Yutaka Tokuda; Yuta Sugiura; Katsutoshi Masai; Keiji Hirata 001 (HAI, 2021)

PerformEyebrow: Design and Implementation of an Artificial Eyebrow Device Enabling Augmented Facial Expression. - Motoyasu Masui; Yoshinari Takegawa; Nonoka Nitta; Yutaka Tokuda; Yuta Sugiura; Katsutoshi Masai; Keiji Hirata 001 (HCI (3), 2021)

Online Study Reveals the Multimodal Effects of Discrete Auditory Cues in Moving Target Estimation Task. - Katsutoshi Masai; Akemi Kobayashi; Toshitaka Kimura (ICMI, 2021)

Consistent Smile Intensity Estimation from Wearable Optical Sensors. - Katsutoshi Masai; Monica Perusquía-Hernández; Maki Sugimoto; Shiro Kumano; Toshitaka Kimura (ACII, 2022)

High-Speed Thermochromism Control Method Integrating Water Cooling Circuits and Electric Heating Circuits Printed with Conductive Silver Nanoparticle Ink. - Motoyasu Masui; Yoshinari Takegawa; Yutaka Tokuda; Yuta Sugiura; Katsutoshi Masai; Keiji Hirata 001 (HCI (2), 2022)

Virtual Reality Sonification Training System Can Improve a Novice's Forehand Return of Serve in Tennis. - Katsutoshi Masai; Takuma Kajiyama; Tadashi Muramatsu; Maki Sugimoto; Toshitaka Kimura (ISMAR Adjunct, 2022)

AnkleSens: Foot Posture Prediction Using Photo Reflective Sensors on Ankle. - Kosuke Kikui; Katsutoshi Masai; Tomoya Sasaki; Masahiko Inami; Maki Sugimoto (IEEE Access, 2022)

Investigating Effects of Facial Self-Similarity Levels on the Impression of Virtual Agents in Serious/Non-Serious Contexts. - Masayasu Niwa; Katsutoshi Masai; Shigeo Yoshida; Maki Sugimoto (AHs, 2023)

Unobtrusive Refractive Power Monitoring: Using EOG to Detect Blurred Vision. - Xin Wei; Huakun Liu; Monica Perusquía-Hernández; Katsutoshi Masai; Naoya Isoyama; Hideaki Uchiyama; Kiyoshi Kiyokawa (EMBC, 2023)

Masktrap: Designing and Identifying Gestures to Transform Mask Strap into an Input Interface. - Takumi Yamamoto; Katsutoshi Masai; Anusha Withana; Yuta Sugiura (IUI, 2023)

SyncArms: Gaze-Driven Target Object-oriented Manipulation for Parallel Operation of Robot Arms in Distributed Physical Environments. - Koki Kawamura; Shunichi Kasahara; Masaaki Fukuoka; Katsutoshi Masai; Ryota Kondo; Maki Sugimoto (SIGGRAPH Emerging Technologies, 2023)

Assessing Individual Decision-Making Skill by Manipulating Predictive and Unpredictive Cues in a Virtual Baseball Batting Environment. - Yuhi Tani; Akemi Kobayashi; Katsutoshi Masai; Takehiro Fukuda; Maki Sugimoto; Toshitaka Kimura (VR Workshops, 2023)

Analyzing the Effect of Diverse Gaze and Head Direction on Facial Expression Recognition With Photo-Reflective Sensors Embedded in a Head-Mounted Display. - Fumihiko Nakamura; Masaaki Murakami; Katsuhiro Suzuki; Masaaki Fukuoka; Katsutoshi Masai; Maki Sugimoto (IEEE Trans. Vis. Comput. Graph., 2023)

Analysis of Co-viewing with Virtual Agent Towards Affectively Immersive Interaction in Virtual Spaces. - Katsutoshi Masai; Keisuke Morita; Maki Sugimoto (ISMAR-Adjunct, 2024)

Facial Gesture Classification with Few-shot Learning Using Limited Calibration Data from Photo-reflective Sensors on Smart Eyewear. - Katsutoshi Masai; Maki Sugimoto; Brian Iwana (MUM, 2024)

Seamless Avatar Expression Transfer: Merging Camera and Smart Eyewear Embedded with Photo-Reflective Sensor Technologies. - Katsutoshi Masai (VR Workshops, 2024)

Generating Sensory Vocabulary Cues for Describing Scents in Olfactory-Enhanced Second Language Vocabulary Learning. - Yudai Honda; Kenta Tanizawa; Katsutoshi Masai; Yugo Nakamura; Hyuckjin Choi; Shogo Fukushima (HCI (43), 2025)

Air-Puff Eyewear System for Blink Monitoring and Reflexive Blink Induction to Improve Dry Eye. - Toshiki Mori; Katsutoshi Masai; Hyuckjin Choi; Yugo Nakamura; Yutaka Arakawa; Shogo Fukushima; Tsunenori Mine (HCI (38), 2025)

Analysis of Laughter Breathing Movements and the Effectiveness of Breathing Guidance Methods for Laughter Facilitation. - Hiromasa Tanaka; Katsutoshi Masai; Hyuckjin Choi; Yugo Nakamura; Tsunenori Mine; Yutaka Arakawa; Shogo Fukushima (HCI (64), 2025)

Supple and Graspable XR Controller for Providing a Realistic Hand-Holding Sensation. - Kenta Tanizawa; Kiichiro Kai; Katsutoshi Masai; Tsunenori Mine; Yutaka Arakawa; Hyuckjin Choi; Shogo Fukushima (HCI (10), 2025)

MaGEL: A Soft, Transparent Input Device Enabling Deformation Gesture Recognition. - Fumika Oguri; Katsutoshi Masai; Yuta Sugiura; Yuichi Itoh (IUI, 2025)

GestEarrings: Developing Gesture-Based Input Techniques for Earrings. - Takehisa Furuuchi; Takumi Yamamoto; Takashi Amesaka; Katsutoshi Masai; Yuta Sugiura (SII, 2025)

Augmented Auditory Feedback Towards Ball Sports Visual Skill Training. - Katsutoshi Masai; Hideo Saito 001 (VR Workshops, 2025)

Event Camera-Based Interactive Visualization System of High-Speed Events. - Kotoka Matsunaga; Katsutoshi Masai; Hideo Saito 001 (VR Workshops, 2025)

Instant Slow-Motion Visualization of High-Speed Phenomena Based on Event Camera. - Kotoka Matsunaga; Katsutoshi Masai; Hideo Saito 001 (IEEE Access, 2025)

Mind Your Vision: Multimodal Estimation of Refractive Disorders Using Electrooculography and Eye Tracking. - Xin Wei; Huakun Liu; Yutaro Hirao; Monica Perusquía-Hernández; Katsutoshi Masai; Hideaki Uchiyama; Kiyoshi Kiyokawa (CoRR, 2025)