Papers - Minamizawa, Kouta

Prosthetic Tail—身体機能を補綴する拡張身体としての人工尾—

鍋島純一， 南澤孝太

ロボティクス・メカトロニクス講演会講演概要集 2019, 1P1-H07  2019

KAN. KA: evaluating across-body vibrotactile patterns for the design of affective furniture Sub Title Author Chandra, Marcellina Yurike (Minamizawa, Kōta) 南澤, 孝太 Publisher …

MY Chandra

 2019

IEEE World Haptics Conference 2019 報告

篠田裕之， 梶本裕之， 矢野博明， 南澤孝太， 牧野泰才， 古川正紘， ...

Journal of the Virtual Reality Society of Japan (The Virtual Reality Society of Japan)  24 ( 4 ) 29 - 38 2019

ISSN  1342-6680

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IEEE World Haptics Conference 2019 報告

篠田裕之， 梶本裕之， 矢野博明， 南澤孝太， 牧野泰才， 古川正紘， ...

Journal of the Virtual Reality Society of Japan (The Virtual Reality Society of Japan)  24 ( 4 ) 29 - 38 2019

ISSN  1342-6680

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Prosthetic Tail—身体機能を補綴する拡張身体としての人工尾—

鍋島純一， 南澤孝太

ロボティクス・メカトロニクス講演会講演概要集 2019, 1P1-H07  2019

KAN. KA: evaluating across-body vibrotactile patterns for the design of affective furniture Sub Title Author Chandra, Marcellina Yurike (Minamizawa, Kōta) 南澤, 孝太 Publisher …

MY Chandra

 2019

Arque

J Nabeshima, MHDY Saraiji, K Minamizawa

ACM SIGGRAPH 2019 Posters  2019

TeleSight

T Furukawa, D Yamamoto, M Sugawa, R Peiris, K Minamizawa

ACM SIGGRAPH 2019 Emerging Technologies  2019

ThermalBracelet

RL Peiris, YL Feng, L Chan, K Minamizawa

Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems  2019

Illusory body ownership of an invisible body interpolated between virtual hands and feet via visual-motor synchronicity

R Kondo, M Sugimoto, K Minamizawa, T Hoshi, M Inami, M Kitazaki

Scientific reports 8 (1), 7541 (Scientific Reports)  8 ( 1 )  2018.12

ISSN  2045-2322

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© 2018 The Author(s). Body ownership can be modulated through illusory visual-tactile integration or visual-motor synchronicity/contingency. Recently, it has been reported that illusory ownership of an invisible body can be induced by illusory visual-tactile integration from a first-person view. We aimed to test whether a similar illusory ownership of the invisible body could be induced by the active method of visual-motor synchronicity and if the illusory invisible body could be experienced in front of and facing away from the observer. Participants observed left and right white gloves and socks in front of them, at a distance of 2 m, in a virtual room through a head-mounted display. The white gloves and socks were synchronized with the observers' actions. In the experiments, we tested the effect of synchronization, and compared this to a whole-body avatar, measuring self-localization drift. We observed that visual hands and feet were sufficient to induce illusory body ownership, and this effect was as strong as using a whole-body avatar.

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MetaArmS: Body remapping using feet-controlled artificial arms

Yamen Saraiji M., Sasaki T., Kunze K., Minamizawa K., Inami M.

UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology (UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology)     65 - 74 2018.10

ISSN  9781450359481

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© 2018 ACM. We introduce MetaArms, wearable anthropomorphic robotic arms and hands with six degrees of freedom operated by the user's legs and feet. Our overall research goal is to re-imagine what our bodies can do with the aid of wearable robotics using a body-remapping approach. To this end, we present an initial exploratory case study. MetaArms' two robotic arms are controlled by the user's feet motion, and the robotic hands can grip objects according to the user's toes bending. Haptic feedback is also presented on the user's feet that correlate with the touched objects on the robotic hands, creating a closed-loop system. We present formal and informal evaluations of the system, the former using a 2D pointing task according to Fitts' Law. The overall throughput for 12 users of the system is reported as 1.01 bits/s (std 0.39). We also present informal feedback from over 230 users. We find that MetaArms demonstrate the feasibility of body-remapping approach in designing robotic limbs that may help us re-imagine what the human body could do.

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MetaArmS: Body remapping using feet-controlled artificial arms

Sasaki T., Saraiji Y., Minamizawa K., Inami M.

UIST 2018 Adjunct - Adjunct Publication of the 31st Annual ACM Symposium on User Interface Software and Technology (UIST 2018 Adjunct - Adjunct Publication of the 31st Annual ACM Symposium on User Interface Software and Technology)     140 - 142 2018.10

ISSN  9781450359498

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© 2018 Copyright held by the owner/author(s). We introduce MetaArms, wearable anthropomorphic robotic arms and hands with six degrees of freedom operated by the user's legs and feet. Our overall research goal is to re-imagine what our bodies can do with the aid of wearable robotics using a body-remapping approach. To this end, we present an initial exploratory case study. MetaArms' two robotic arms are controlled by the user's feet motion, and the robotic hands can grip objects according to the user's toes bending. Haptic feedback is also presented on the user's feet that correlate with the touched objects on the robotic hands, creating a closed-loop system. Using this system, users can experience an expanded number of arms interaction in which there legs are mapped into the artificial limbs. MetaArms provided initial indications for the sense of limbs alteration.

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Illusory Body Ownership between Different Body Parts: Synchronization of Right Thumb and Right Arm

R Kondo, M Sugimoto, K Minamizawa, M Inami, M Kitazaki, Y Tani

2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), 611-612 (25th IEEE Conference on Virtual Reality and 3D User Interfaces, VR 2018 - Proceedings)     611 - 612 2018.08

ISSN  9781538633656

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© 2018 IEEE. Illusory body ownership can be induced by visual-Tactile stimulation or visual-motor synchronicity. We aimed to test whether a right thumb could be remapped to a virtual right arm and illusory body ownership of the virtual arm induced through synchronous movements of the right thumb and the virtual right arm. We presented the virtual right arm in synchronization with movements of a participant's right thumb on a head-mounted display (HMD). We found that the participants felt as though their right thumb became the right arm, and that the right arm belonged to their own body.

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Skin+: programmable skin as a visuo-tactile interface

F Cao, MHD Saraiji, K Minamizawa

ACM SIGGRAPH 2018 Posters, 71 (ACM SIGGRAPH 2018 Posters, SIGGRAPH 2018)   2018.08

ISSN  9781450358170

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© 2018 Copyright held by the owner/author(s). Wearable technologies have been supporting and augmenting our body and sensory functions for a long time. Skin+ introduces a novel bidirectional on-skin interface that serve not only as haptic feedback to oneself but also as a visual display to mediate touch sensation to others as well. In this paper, we describe the design of Skin+ and its usability in a variety of applications. We use a shape-changing auxetic structure to build this programmable coherent visuo-tactile interface. The combination of shape-memory alloy with an auxetic structure enables a lightweight haptic device that can be worn seamlessly on top of our skin.

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Bubble Jumper

R Ando, A Ando, K Kunze, K Minamizawa

1st International Superhuman Sports Design Challenge, SHS 2018 (ACM International Conference Proceeding Series)  Part F137697 2018.07

ISSN  9781450364072

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© 2018 Association for Computing Machinery. This paper introduces Bubble Jumper, a super human sport enhancing your jump and enlarge your bodies circumference (grith) simulating an augmented sumo wrestler. We focus on the experience of superhuman strength in the legs and giving you the feeling of a larger body for the sport. We present the historical context of Sumo as well as our approach to augment the sport into Bubble Jumper. We show some early design prototypes and the iterative process to improve them, as well as rules and ideas for digital augmentation of the sport.

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Anyorbit: orbital navigation in virtual environments with eye-tracking.

BI Outram, YS Pai, T Person, K Minamizawa, K Kunze

ETRA, 45:1-45:5 (Eye Tracking Research and Applications Symposium (ETRA))   2018.06

ISSN  9781450357067

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© 2018 Copyright held by the owner/author(s). Publication rights licensed to Association for Computing Machinery. Gaze-based interactions promise to be fast, intuitive and effective in controlling virtual and augmented environments. Yet, there is still a lack of usable 3D navigation and observation techniques. In this work: 1) We introduce a highly advantageous orbital navigation technique, AnyOrbit, providing an intuitive and hands-free method of observation in virtual environments that uses eye-tracking to control the orbital center of movement; 2) The versatility of the technique is demonstrated with several control schemes and use-cases in virtual/augmented reality head-mounted-display and desktop setups, including observation of 3D astronomical data and spectator sports.

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Crystal Vibes feat. Ott: A psychedelic musical virtual reality experience utilising the full-body vibrotactile haptic synesthesia suit

B Outram, Y Konishi, A Shimbo, R Shimizu, K Minamizawa, A Sato, ...

2017 23rd International Conference on Virtual System & Multimedia (VSMM), 1-4 (Proceedings of the 2017 23rd International Conference on Virtual Systems and Multimedia, VSMM 2017)  2018-January   1 - 4 2018.04

ISSN  9781538644935

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© 2017 IEEE. Immersive media technology such as virtual reality provides the unique opportunity to place participants in multi-sensory hyper-connected universes where auditory and visual senses are intimately connected, and worlds can be built out of fractal geometries. Crystal Vibes is an artistic piece that combines spatial audio, endless fractal geometries, full-body haptic vibration feedback and sound-to-colour visualisation based on empirical biological functions related to human auditory and visual perception. Exhibited at Sundance Film Festival New Frontier in January 2017, and at Kaleidoscope Showcase Vol. 2 in 10 cities across the world, in this paper we report on insights from user feedback, as well as details of the technical implementation, including real-time rendering of seemingly infinite fractal-like structures, the haptic design philosophy and the sound-visualisation technique. Finally, we comment on the psychology and utility of such virtual environments.

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Ambient: Facial thermal feedback in remotely operated applications

MHD Saraiji, RL Peiris, L Shen, K Minamizawa, S Tachi

Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing … (Conference on Human Factors in Computing Systems - Proceedings)  2018-April 2018.04

ISSN  9781450356213

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Copyright held by the owner/author(s). Facial thermoreception plays an important role in mediating surrounding ambient and direct feeling of temperature and touch, enhancing our subjective experience of presence. Such sensory modality has not been well explored in the field of Telepresence and Telexistence. We present Ambient, an enhanced experience of remote presence that consists of a fully facial thermal feedback system combined with the first person view of Telexistence systems. Here, we present an overview of the design and implementation of Ambient, along with scenarios envisioned for social and intimate applications.

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Unconstrained neck: Omnidirectional observation from an extra robotic neck

L Shen, MY Saraji, K Kunze, K Minamizawa

Proceedings of the 9th Augmented Human International Conference, 38 (ACM International Conference Proceeding Series)   2018.02

ISSN  9781450354158

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© 2018 Copyright held by the owner/author(s) ACM. Humans are born with physiological limitations in terms of the sensory and motor abilities. Due to the narrow range of motion of the neck and the small visual field of the eyes, the human visual sense is limited in terms of the spatial range.We address this visual limitation by proposing a programmable neck that can leverage the range of motion limits. Unconstrained Neck, a head-mounted robotic neck, is a substitution neck system which provides a wider range of motion enabling humans to overcome the physical constraints of the neck. Using this robotic neck, it is possible to control the visual/motor gain which allows the user to thus control the range and speed of his effective neck motion or visual motion.

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3D Printed Haptics: Creating Pneumatic Haptic Display Based on 3D Printed Airbags

YL Feng, RL Peiris, CL Fernando, K Minamizawa

International Conference on Human Haptic Sensing and Touch Enabled Computer … (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics))  10894 LNCS   180 - 192 2018

ISSN  9783319933986

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© Springer International Publishing AG, part of Springer Nature 2018. In this paper, we provide a rapid fabrication method to create customizable pneumatic haptic displays using 3D printing technology. Based on the 3d printed miniature airbag which is built form a simple modeling process, various shapes of the haptic display can be made. Not only altering the shape of a single airbag to make a one-dimensional haptic display, but also combining multi airbags as spacial distributed to construct a multi DoF haptic display is possible. The 3D printed airbag is scalable, light to wear and waterproof. Each airbag is inflated by a full-range speaker which mounted on a closed air chamber where the air is transferred back and forth through a tiny nozzle to the airbag. So both low-frequency pressure and high-frequency vibration could be presented. Our technical evaluation identified that the airbag is capable of presenting a wide range of mechanical vibration from 2 Hz to 800 Hz. In addition, a user study was done to investigate the capability of rendering multi degree-of-freedom tactile sensation. The average accuracy of distinguishing directional information is over 80%.

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