6 research outputs found
Expanding tangible tabletop interfaces beyond the display
Lâaugment
de
popularitat
de
les
taules
i
superfĂcies
interactives
estĂ
impulsant
la
recerca
i
la
innovaciĂł
en
una
gran
varietat
dâĂ rees,
incloent-Ââhi
maquinari,
programari,
disseny
de
la
interacciĂł
i
noves
tĂšcniques
dâinteracciĂł.
Totes,
amb
lâobjectiu
de
promoure
noves
interfĂcies
dotades
dâun
llenguatge
més
ric,
potent
i
natural.
Entre
totes
aquestes
modalitats,
la
interacciĂł
combinada
a
sobre
i
per
damunt
de
la
superfĂcie
de
la
taula
mitjançant
tangibles
i
gestos
Ă©s
actualment
una
Ă rea
molt
prometedora.
Aquest
document
tracta
dâexpandir
les
taules
interactives
més
enllĂ
de
la
superfĂcie
per
mitjĂ
de
lâexploraciĂł
i
el
desenvolupament
dâun
sistema
o
dispositiu
enfocat
des
de
tres
vessants
diferents:
maquinari,
programari
i
disseny
de
la
interacciĂł.
Durant
lâinici
dâaquest
document
sâestudien
i
es
resumeixen
els
diferents
trets
caracterĂstics
de
les
superfĂcies
interactives
tangibles
convencionals
o
2D
i
es
presenten
els
treballs
previs
desenvolupats
per
lâautor
en
solucions
de
programari
que
acaben
resultant
en
aplicacions
que
suggereixen
lâĂșs
de
la
tercera
dimensiĂł
a
les
superfĂcies
tangibles.
Seguidament,
es
presenta
un
repĂ s
del
maquinari
existent
en
aquest
tipus
dâinterfĂcies
per
tal
de
concebre
un
dispositiu
capaç
de
detectar
gestos
i
generar
visuals
per
sobre
de
la
superfĂcie,
per
introduir
els
canvis
realitzats
a
un
dispositiu
existent,
desenvolupat
i
cedit
per
Microsoft
Reseach
Cambridge.
Per
tal
dâexplotar
tot
el
potencial
dâaquest
nou
dispositiu,
es
desenvolupa
un
nou
sistema
de
visiĂł
per
ordinador
que
estén
el
seguiment
dâobjectes
i
mans
en
una
superfĂcie
2D
a
la
detecciĂł
de
mans,
dits
i
etiquetes
amb
sis
graus
de
llibertat
per
sobre
la
superfĂcie
incloent-Ââhi
la
interacciĂł
tangible
i
tĂ ctil
convencional
a
la
superfĂcie.
Finalment,
es
presenta
una
eina
de
programari
per
a
generar
aplicacions
per
al
nou
sistema
i
es
presenten
un
seguit
dâaplicacions
per
tal
de
provar
tot
el
desenvolupament
generat
al
llarg
de
la
tesi
que
es
conclou
presentant
un
seguit
de
gestos
tant
a
la
superfĂcie
com
per
sobre
dâaquesta
i
situant-Ââlos
en
una
nova
classificaciĂł
que
alhora
recull
la
interacciĂł
convencional
2D
i
la
interacciĂł
estesa
per
damunt
de
la
superfĂcie
desenvolupada.The
rising
popularity
of
interactive
tabletops
and
surfaces
is
spawning
research
and
innovation
in
a
wide
variety
of
areas,
including
hardware
and
software
technologies,
interaction
design
and
novel
interaction
techniques,
all
of
which
seek
to
promote
richer,
more
powerful
and
more
natural
interaction
modalities.
Among
these
modalities,
combined
interaction
on
and
above
the
surface,
both
with
gestures
and
with
tangible
objects,
is
a
very
promising
area.
This
dissertation
is
about
expanding
tangible
and
tabletops
surfaces
beyond
the
display
by
exploring
and
developing
a
system
from
the
three
different
perspectives:
hardware,
software,
and
interaction
design.
This
dissertation,
studies
and
summarizes
the
distinctive
affordances
of
conventional
2D
tabletop
devices,
with
a
vast
literature
review
and
some
additional
use
cases
developed
by
the
author
for
supporting
these
findings,
and
subsequently
explores
the
novel
and
not
yet
unveiled
potential
affordances
of
3D-Ââaugmented
tabletops.
It
overviews
the
existing
hardware
solutions
for
conceiving
such
a
device,
and
applies
the
needed
hardware
modifications
to
an
existing
prototype
developed
and
rendered
to
us
by
Microsoft
Research
Cambridge.
For
accomplishing
the
interaction
purposes,
it
is
developed
a
vision
system
for
3D
interaction
that
extends
conventional
2D
tabletop
tracking
for
the
tracking
of
hand
gestures,
6DoF
markers
and
on-Ââsurface
finger
interaction.
It
finishes
by
conceiving
a
complete
software
framework
solution,
for
the
development
and
implementation
of
such
type
of
applications
that
can
benefit
from
these
novel
3D
interaction
techniques,
and
implements
and
test
several
software
prototypes
as
proof
of
concepts,
using
this
framework.
With
these
findings,
it
concludes
presenting
continuous
tangible
interaction
gestures
and
proposing
a
novel
classification
for
3D
tangible
and
tabletop
gestures
Recommended from our members
The statistical properties and coding of handwriting and hand-drawn graphics in tutorial classes
This research investigates compression techniques as applied to input from a digitizing tablet. The representations we consider are either drawn from the literature or developed within this thesis; they involve selecting relevant points along the trajectory of the writing pen, and using an interpolating function for reconstruction. The two dimensional parametric polynomial interpolator (e.g linear, quadratic, cubic ) is used for regenerating the trajectory of the pen. Several techniques for selecting relevant points , i.e control points are discussed. We determine our best representation by weighting the criteria, analyzing the experimental results, examining the theoretical considerations and, making where necessary, justifiable tradeoffs. The techniques tested are objectively evaluated in terms of accuracy, efficiency and compactness. The information characteristics (i.e signal entropy) of the handwriting and drawing signals, are estimated from the original and approximated data. Results are discussed and conclusions drawn. The research has been carried out on static data
Designing Effective Interfaces for Older Users
The thesis examines the factors that need to be considered in order to undertake successful design of user interfaces for older users. The literature on aging is surveyed for age related changes that are of relevance to interface design. The findings from the literature review are extended and placed in a human context using observational studies of older people and their supporters as these older people attempted to learn about and use computers. These findings are then applied in three case studies of interface design and product development for older users. These case studies are reported and examined in depth. For each case study results are presented on the acceptance of the final product by older people. These results show that, for each case study, the interfaces used led to products that the older people evaluating them rated as unusually suitable to their needs as older users. The relationship between the case studies and the overall research aims is then examined in a discussion of the research methodology. In the case studies there is an evolving approach used in developing the interface designs. This approach includes intensive contribution by older people to the shaping of the interface design. This approach is analyzed and is presented as an approach to designing user interfaces for older people. It was found that a number of non-standard techniques were useful in order to maximize the benefit from the involvement of the older contributors and to ensure their ethical treatment. These techniques and the rationale behind them are described. Finally the interface design approach that emerged has strong links to the approach used by the UTOPIA team based at the university of Dundee. The extent to which the thesis provides support for the UTOPIA approach is discussed
"In the pipeline" : a qualitative study of general nurse training
This thesis reports on the exploration of a problem in nurse training, the failure of nurses to fulfil a health education role. This problem is explored using a qualitative methodology which incorporates unstructured Interviewing and participant observation. The study population comprised both student nurses and significant others in the hospital setting. The study is particularly concerned with the experiences of the student nurse as she progresses through training. Because she is both learner and worker, her experiences both in the wards and the school of nursing are considered. These experiences are explored within the framework of occupational socialization studies, with the assumption that both 'objective' and 'subjective' reality must be explored if the socialization process is to be understood. Although a framework for reporting is imposed in constructing this account of training, a theoretical model is not imposed in the process of data collection or data assembly. Data are presented in such a way that student nurses are allowed to 'tell their story'.\ud
This study identifies a hidden curriculum in the hospital training schools studied. Accounts suggest that student nurses experience powerlessness, uncertainty and depersonalization; this experience is conceptualized as 'pipeline status'. It is suggested that this results in a compliance and a conformity on the part of individuals as they depend on existing structures and routines to 'get-by'. This 'pipeline status' has repercussions for health education and indeed for any development of the nursing role as it prepares the nurse for a very specific work role in a particular type of organization. The report concludes with a discussion of the implications of 'pipeline status' for a nursing role In health education and for the future training of nurses. \u