ReFabricator: Integrating Everyday Objects for Digital Fabrication
Interactivity Demos
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Yamada, Suguru
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Morishige, Hironao
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Nozaki, Hiroki
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Ogawa, Masaki
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Yonezawa, Takuro
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Tokuda, Hideyuki
Extended Abstracts of the ACM CHI'16 Conference on Human Factors in
Computing Systems
2016-05-07
v.2
p.3804-3807
© Copyright 2016 ACM
Summary: Since current digital fabrication relies on 3D printer very much, there are
several concerns such as printing cost (i.e., both financial and temporal cost)
and sometimes too homogeneous impression with plastic filament. To address and
solve the problem, we propose ReFabricator, a computational fabrication tool
integrating everyday objects into digital fabrication. ReFabrication is a
concept of fabrication, mixing the idea of Reuse and Digital Fabrication, which
aims to fabricate new functional shape with ready made products, effectively
utilizing its behavior. As a system prototype, we have implemented a design
tool which enables users to gather up every day objects and reassemble them to
another functional shape with taking advantages of both analog and digital
fabrication. In particular, the system calculates the optimized positional
relationship among objects, and generates joint objects to bond the objects
together in order to achieve a certain shape.
Reducing users' perceived mental effort due to interruptive notifications in
multi-device mobile environments
Reshaping UbiComp environments
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Okoshi, Tadashi
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Ramos, Julian
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Nozaki, Hiroki
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Nakazawa, Jin
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Dey, Anind K.
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Tokuda, Hideyuki
Proceedings of the 2015 International Conference on Ubiquitous Computing
2015-09-07
p.475-486
© Copyright 2015 ACM
Summary: In today's ubiquitous computing environment where users carry, manipulate,
and interact with an increasing number of networked devices, applications and
web services, human attention is the new bottleneck in computing. It is
therefore important to minimize a user's mental effort due to notifications,
especially in situations where users are mobile and using multiple wearable and
mobile devices. To this end, we propose Attelia II, a novel middleware that
identifies breakpoints in users' lives while using those devices, and delivers
notifications at these moments. Attelia II works in real-time and uses only the
mobile and wearable devices that users naturally use and wear, without any
modifications to applications, and without any dedicated psycho-physiological
sensors. Our in-the-wild evaluation in users' multi-device environment (smart
phones and smart watches) with 41 participants for 1 month validated the
effectiveness of Attelia. Our new physical activity-based breakpoint detection,
in addition to the UI Event-based breakpoint detection, resulted in a 71.8%
greater reduction of users' perception of workload, compared with our previous
system that used UI events only. Adding this functionality to a smart watch
reduced workload perception by 19.4% compared to random timing of notification
deliveries. Our multi-device breakpoint detection across smart phones and
watches resulted in about 3 times greater reduction in workload perception than
our previous system.
SENSeTREAM: enhancing online live experience with sensor-federated video
stream using animated two-dimensional code
Mobile applications
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Yonezawa, Takuro
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Ogawa, Masaki
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Kyono, Yutaro
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Nozaki, Hiroki
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Nakazawa, Jin
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Nakamura, Osamu
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Tokuda, Hideyuki
Proceedings of the 2014 International Joint Conference on Pervasive and
Ubiquitous Computing
2014-09-13
v.1
p.301-305
© Copyright 2014 ACM
Summary: We propose a novel technique that aggregates multiple sensor streams
generated by totally different types of sensors into a visually enhanced video
stream. This paper shows major features of SENSeTREAM and demonstrates
enhancement of user experience in an online live music event. Since SENSeTREAM
is a video stream with sensor values encoded in a two-dimensional graphical
code, it can transmit multiple sensor data streams while maintaining their
synchronization. A SENSeTREAM can be transmitted via existing live streaming
services, and can be saved into existing video archive services. We have
implemented a prototype SENSeTREAM generator and deployed it to an online live
music event. Through the pilot study, we confirmed that SENSeTREAM works with
popular streaming services, and provide a new media experience for live
performances. We also indicate future direction for establishing visual stream
aggregation and its applications.
Flying display: a movable display pairing projector and screen in the air
Student research competition
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Nozaki, Hiroki
Proceedings of ACM CHI 2014 Conference on Human Factors in Computing Systems
2014-04-26
v.2
p.909-914
© Copyright 2014 ACM
Summary: We developed Flying Display, a novel movable public display system which can
provide information to the people anywhere at anytime. This system consists of
two UAVs (Unmanned Aerial Vehicles) with a projector and a screen. Flying
Display achieves moving freely and keeping stable in 3-D space. Flying Display
moves closer to people and gives information directly to them. To evaluate
performance of Flying Display, we performed two experiments for adapting a
flying control algorithm. We also showed the stability of Flying Display
systems by trajectories of each UAV. This paper highlights the performance of
Flying Display and discusses the Flying Display's potential for public displays
in physical space.
EverCopter: continuous and adaptive over-the-air sensing with detachable
wired flying objects
Poster, demo, & video presentations
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Kyono, Yutaro
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Yonezawa, Takuro
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Nozaki, Hiroki
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Ogawa, Masaki
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Ito, Tomotaka
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Nakazawa, Jin
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Takashio, Kazunori
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Tokuda, Hideyuki
Adjunct Proceedings of the 2013 International Joint Conference on Pervasive
and Ubiquitous Computing
2013-09-08
v.2
p.299-302
© Copyright 2013 ACM
Summary: The paper proposes EverCopter, which provides continuous and adaptive
over-the-air sensing with detachable wired flying objects. While a major
advantage of sensing systems with battery-operated MAVs is a wide sensing
coverage, sensing time is limited due to its limited amount of energy. We
propose dynamically rechargeable flying objects, called EverCopter. EverCopter
achieves both long sensing time and wide sensing coverage by the following two
characteristics. First, multiple EverCopters can be tied in a row by power
supply cables. Since the root EverCopter in a row is connected to DC power
supply on the ground, each EverCopter can fly without battery. This makes their
sensing time forever, unless the power supply on the ground fails. Second, the
leaf EverCopter can detach itself from the row in order to enjoy wider sensing
coverage. An EverCopter, while it is detached, runs with its own
battery-supplied energy. When the remaining energy becomes low, it flies back
to the row to recharge the battery.
FRAGWRAP: fragrance-encapsulated and projected soap bubble for scent mapping
Poster, demo, & video presentations
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Kyono, Yutaro
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Yonezawa, Takuro
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Nozaki, Hiroki
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Nakazawa, Jin
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Tokuda, Hideyuki
Adjunct Proceedings of the 2013 International Joint Conference on Pervasive
and Ubiquitous Computing
2013-09-08
v.2
p.311-314
© Copyright 2013 ACM
Summary: This paper proposes FRAGWRAP which maps scent to real objects in real-time.
To achieve this purpose, we leverage fragrance-encapsulated soap bubble with
projection mapping technique. Since human olfaction is known as combined
utilization of his/her eyes and nose, we encapsulate fragrance into bubble soap
to stimulate the nose and also project 3D image of the fragrance to the bubble
soap in real-time. In this video, we present our first prototype which
automatically inserts fragrance into a soap bubble and also projects images to
the moving bubble. All system is activated by speech recognition.
