ThumbSlide: An Interaction Technique for Smartwatches using a Thumb Slide
Movement
Late-Breaking Works: Novel Interactions
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Aoyama, Shuhei
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Shizuki, Buntarou
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Tanaka, Jiro
Extended Abstracts of the ACM CHI'16 Conference on Human Factors in
Computing Systems
2016-05-07
v.2
p.2403-2409
© Copyright 2016 ACM
Summary: We present ThumbSlide, which is an interaction technique for a smartwatch
that prevents occlusion caused by the user's finger; the technique realizes
continuous manipulation by estimating the moving amount of the thumb. Combining
with any determining operation (e.g., clench of the hand), our technique
enables the user to select a target by only the hand that is wearing a
smartwatch. Our system estimates the moving amount of the thumb by muscles'
expansion caused by its movement. The muscle expansion is measured by a
specially designed wrist-worn sensor device. Moreover, the device can recognize
the clench of the hand as an instantaneous change of the wrist's contour. In
this paper, we show the implementation of ThumbSlide and its example
applications.
Spatial Clearance Verification Using 3D Laser Range Scanner and Augmented
Reality
Augmented Reality Applications
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Ishii, Hirotake
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Aoyama, Shuhei
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Ono, Yoshihito
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Yan, Weida
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Shimoda, Hiroshi
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Izumi, Masanori
VMR 2011: 4th International Conference on Virtual and Mixed Reality, Part I:
New Trends
2011-07-09
v.1
p.45-54
Keywords: Augmented Reality; Laser Range Scanner; Nuclear Power Plants;
Decommissioning; Spatial Clearance Verification
Copyright © 2011 Springer-Verlag
Summary: A spatial clearance verification system for supporting nuclear power plant
dismantling work was developed and evaluated by a subjective evaluation. The
system employs a three-dimensional laser range scanner to obtain
three-dimensional surface models of work environment and dismantling targets.
The system also employs Augmented Reality to allow field workers to perform
simulation of transportation and temporal placement of dismantling targets
using the obtained models to verify spatial clearance in actual work
environments. The developed system was evaluated by field workers. The results
show that the system is acceptable and useful to confirm that dismantling
targets can be transported through narrow passages and can be placed in limited
temporal workspaces. It was also found that the extension of the system is
desirable to make it possible for multiple workers to use the system
simultaneously to share the image of the dismantling work.
Relationship between Emotional State and Pupil Diameter Variability under
Various Types of Workload Stress
New Trends in Ergonomics
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Sakamoto, Kiyomi
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Aoyama, Shoichi
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Asahara, Shigeo
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Mizushina, Haruki
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Kaneko, Hirohiko
EHAWC 2009: Ergonomics and Health Aspects of Work with Computers
2009-07-19
p.177-185
Keywords: Pupil diameter; audio stimuli; psychological state; variability in pupil
diameter
Copyright © 2009 Springer-Verlag
Summary: We carried out two experiments to explore the relationship between the
frequency characteristic of pupil diameter variability and emotional state
under various types of workload. The workload required the subjects to listen
to spoken words and categorize them. The difficulty of the task was adjusted by
changing the time interval of the stimulus presentation in Experiment 1
(time-based task) and the number of categories in Experiment 2 (cognitive-based
task). Pupil diameter was monitored and recorded using an infrared video camera
while observers were performing the tasks. In both experiments, a significant
correlation was observed between the frequency characteristic of pupil diameter
variability and emotional state. Our results indicated the frequency
characteristic of pupil diameter variability to be a potentially useful index
for evaluating mental stress.
Relationship between Viewing Distance and Visual Fatigue in Relation to
Feeling of Involvement
Vision-Based System
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Sakamoto, Kiyomi
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Aoyama, Shoichi
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Asahara, Shigeo
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Yamashita, Kuniko
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Okada, Akira
Proceedings of the 2008 Asia Pacific Conference on Computer Human
Interaction
2008-07-06
p.232-239
© Copyright 2008 Springer-Verlag
Summary: In this study, we carried out experiments to measure the effect of viewing
distance on visual fatigue using two kinds of visual content. Both experiments
showed that visual fatigue reached a minimum at a distance of 3 to 4 times the
height of the display (3-4H) and that sympathetic nerve activity peaked at
around 3H. These results indicate that the viewing distance for less visual
fatigue and a closer feeling of involvement might be in between the two
distances. These indices, which we adopt in this study, have the potential to
be effective evaluation indices for measuring visual fatigue taking feeling of
involvement into consideration.
