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UBC Theses and Dissertations
A study of haptic icons Enriquez, Mario
Abstract
The goal for this research is to study a new class of force feedback applications based on abstract messages we call haptic icons. With the introduction of active haptic displays, a single knob or joystick can be used to control several different, sometimes non-related, functions. The functions associated with these multi-function handles can no longer be identified from one another by position, shape or texture differences. Haptic icons are brief programmed forces applied to a user through a haptic interface conveying an object's or event's state, function or content in a manner similar to visual or auditory icons. This thesis begins with a presentation of several tools that were developed to aid this research. It then describes a series of psychophysical tests designed to obtain the basic perceptual limits for our haptic interface. Knowing these perceptual limits is a prerequisite for proper haptic icon design. We analyzed a set of synthetically constructed haptic icons using Multidimensional Scaling, in order to discover the underlying perceptual processes in identifying different haptic stimuli. Results show that a set of icons constructed by varying the frequency, magnitude and shape of 2-sec, time-invariant waveforms map to two perceptual axes, which differ depending on the signals' frequency range, and suggest that expressive capability is maximized in one frequency subspace. I finish by proposing future work to be done on this area.
Item Metadata
Title |
A study of haptic icons
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2002
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Description |
The goal for this research is to study a new class of force feedback applications based on
abstract messages we call haptic icons. With the introduction of active haptic displays, a
single knob or joystick can be used to control several different, sometimes non-related,
functions. The functions associated with these multi-function handles can no longer be
identified from one another by position, shape or texture differences. Haptic icons are
brief programmed forces applied to a user through a haptic interface conveying an
object's or event's state, function or content in a manner similar to visual or auditory
icons.
This thesis begins with a presentation of several tools that were developed to aid this
research. It then describes a series of psychophysical tests designed to obtain the basic
perceptual limits for our haptic interface. Knowing these perceptual limits is a
prerequisite for proper haptic icon design. We analyzed a set of synthetically constructed
haptic icons using Multidimensional Scaling, in order to discover the underlying
perceptual processes in identifying different haptic stimuli.
Results show that a set of icons constructed by varying the frequency, magnitude and
shape of 2-sec, time-invariant waveforms map to two perceptual axes, which differ
depending on the signals' frequency range, and suggest that expressive capability is
maximized in one frequency subspace.
I finish by proposing future work to be done on this area.
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Extent |
12870260 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-08-20
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0051677
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2002-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.