Scanning Laser Rangefinder
(tracks hands)
(r,
)
Video
Projector
User
Black Perimeter Baffle
Rear Projection Screen
Figure
Laser
W
all
Installation
Diagram
m
ulticolor
squares
w
ere
plotted
at
the
detected
hand
p
ositions
This
also
w
ork
ed
as
a
m
usic
con
troller
for
whic
h
the
screen
w
as
divided
in
to
four
sections
When
the
presence
of
a
hand
w
as
detected
in
eac
h
section
a
drum
lo
op
w
as
triggered
If
more
than
one
hand
w
as
detected
in
the
sensing
plane
an
bass lead
arp
eggio
w
as
started
The
range
in
pitc
h
of
the
ap
eggio
w
ould
increase
with
the
distance
b
et
w
een
the
hands
This
installation
w
as
displa
y
ed
at
sev
eral
Media
Lab
ev
en
ts
and
w
as
w
ell
receiv
ed
This
rst
soft
w
are
did
v
ery
little
analysis
of
the
data
F
urther
researc
h
follo
w
ed
to
dev
elop
algorithms
for
successfully
mapping
the
data
p
oin
ts
to
raster
co
ordinates
more
accurately
Stretc
hable
Music
Stretc
hable
Music
Ric
is
a
in
teractiv
e
graphical
m
usic
program
dev
elop
ed
b
y
P
eter
Rice
at
the
MIT
Media
Lab
It
allo
ws
a
user
to
manipulate
a
scored
piece
of
m
usic