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From: Eric Skiff <m...@ericskiff.com>
Date: Wed, 14 Dec 2011 22:29:10 -0500
Message-ID: <CAPos=jJRu98Z=wXdUOhWdKW0wkp=LhcV0B1cZZYcRCR19pxbPA@mail.gmail.com>
Subject: Re: [NYCR:Microcontrollers] Re: Connecting a wind sensor and Arduino
to control a video projection
To: nycresistormicrocontrollers@googlegroups.com
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We've used the Kinect successfully to do more precise things where CV would
normally be a good fit, because with the depth data we can easily filter
out the background.
-E
On Tue, Dec 13, 2011 at 3:50 PM, Rolan <rolany...@gmail.com> wrote:
> Do ya think the Kinect would be a good fit here?
>
> ~Rolan
>
> On Dec 13, 1:42 pm, Eric Skiff <m...@ericskiff.com> wrote:
> > Agreed - you'd probably find that any HVAC system in the space would
> create
> > more noise in the wind data than people moving through the space.
> >
> > Personally I would probably try to do this with a webcam and optical flow
> > analysis using OpenCV
> >
> > You can see one example of this here:http://youtu.be/QX5TlIHXhd0
> >
> > There are many other things you can do to simulate fluid/gas movement in
> a
> > space once you have information about which way objects are moving in a
> > field of view.
> > If you take a look at some of Grant Kot's physics simulation videos here:
> http://www.youtube.com/user/kotsoft?blend=8&ob=5(he was our intern here at
> > QLabs!) you'll get a sense for what you can do with optical flow data.
> >
> > -E
> >
> > On Tue, Dec 13, 2011 at 1:03 PM, Paul Strohmeier
> > <paul.strohme...@gmail.com>wrote:
> >
> >
> >
> >
> >
> >
> >
> > > you could try using piezzo electric sensors. they would trigger the
> > > projections based on the vibrations created by the peoples movements.
> >
> > > i think using a wind sensor will probbly be a very complex undertakig
> in
> > > order to get useful readings from it.
> >
> > > p.
> >
> > > - sent from android device -
> > > On Dec 13, 2011 6:02 AM, "Alexandra Gelis" <i...@alexandragelis.com>
> > > wrote:
> >
> > >> hello!
> > >> I am having a problem, see if some of you guys have any idea...
> > >> I need to trigger videos projected by tree projectors.
> > >> The videos should be trigger by the subtle air or wind produced by the
> > >> walking of the viewers on a room. The viewer will be surrounding by
> the 3
> > >> video projections.
> > >> My first idea was to use video cameras connected with MAXmsp and
> create a
> > >> grid to mark and read the movement of the people on the space.
> > >> But, it will be better if is possible to measured the air produce by
> > >> their movement, because conceptually works better with the video
> > >> installation that i working on it.
> > >> Any idea to how to resolve this?
> > >> I was wondering if there is any kind of wind sensor that can be
> connected
> > >> in to Arduino...
> > >> IDEAS?
> > >> I am really appreciated your help!
> >
> > >> Thanks
> > >> Alexandra
> >
> > >> --
> > >> You received this message because you are subscribed to the Google
> Groups
> > >> "NYCResistor:Microcontrollers" group.
> > >> To post to this group, send email to
> > >> nycresistormicrocontrollers@googlegroups.com.
> > >> To unsubscribe from this group, send email to
> > >> nycresistormicrocontrollers+unsubscribe@googlegroups.com.
> > >> For more options, visit this group at
> > >>http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
> >
> > > --
> > > You received this message because you are subscribed to the Google
> Groups
> > > "NYCResistor:Microcontrollers" group.
> > > To post to this group, send email to
> > > nycresistormicrocontrollers@googlegroups.com.
> > > To unsubscribe from this group, send email to
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> > > For more options, visit this group at
> > >http://groups.google.com/group/nycresistormicrocontrollers?hl=en.
>
> --
> You received this message because you are subscribed to the Google Groups
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We've used the Kinect successfully to do more precise things where CV w=
ould normally be a good fit, because with the depth data we can easily filt=
er out the background.<div><br></div><div>-E<br><br><div class=3D"gmail_quo=
te">
On Tue, Dec 13, 2011 at 3:50 PM, Rolan <span dir=3D"ltr"><<a href=3D"mai=
lto:rolany...@gmail.com">rolany...@gmail.com</a>></span> wrote:<br><bloc=
kquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #cc=
c solid;padding-left:1ex">
Do ya think the Kinect would be a good fit here?<br>
<br>
~Rolan<br>
<div class=3D"im"><br>
On Dec 13, 1:42=A0pm, Eric Skiff <<a href=3D"mailto:m...@ericskiff.com">=
m...@ericskiff.com</a>> wrote:<br>
> Agreed - you'd probably find that any HVAC system in the space wou=
ld create<br>
> more noise in the wind data than people moving through the space.<br>
><br>
> Personally I would probably try to do this with a webcam and optical f=
low<br>
> analysis using OpenCV<br>
><br>
> You can see one example of this here:<a href=3D"http://youtu.be/QX5TlI=
HXhd0" target=3D"_blank">http://youtu.be/QX5TlIHXhd0</a><br>
><br>
> There are many other things you can do to simulate fluid/gas movement =
in a<br>
> space once you have information about which way objects are moving in =
a<br>
> field of view.<br>
</div>> If you take a look at some of Grant Kot's physics simulation=
videos here:<a href=3D"http://www.youtube.com/user/kotsoft?blend=3D8&o=
b=3D5(he" target=3D"_blank">http://www.youtube.com/user/kotsoft?blend=3D8&a=
mp;ob=3D5(he</a> was our intern here at<br>
<div class=3D"im">> QLabs!) you'll get a sense for what you can do w=
ith optical flow data.<br>
><br>
> -E<br>
><br>
> On Tue, Dec 13, 2011 at 1:03 PM, Paul Strohmeier<br>
</div>> <<a href=3D"mailto:paul.strohme...@gmail.com">paul.strohme...=
@gmail.com</a>>wrote:<br>
<div class=3D"im">><br>
><br>
><br>
><br>
><br>
><br>
><br>
> > you could try using piezzo electric sensors. they would trigger t=
he<br>
> > projections based on the vibrations created by the peoples moveme=
nts.<br>
><br>
> > i think using a wind sensor will probbly be a very complex undert=
akig in<br>
> > order to get useful readings from it.<br>
><br>
> > p.<br>
><br>
> > - sent from android device -<br>
</div>> > On Dec 13, 2011 6:02 AM, "Alexandra Gelis" <<a=
href=3D"mailto:i...@alexandragelis.com">i...@alexandragelis.com</a>><br=
>
<div><div></div><div class=3D"h5">> > wrote:<br>
><br>
> >> hello!<br>
> >> I am having a problem, see if some of you guys have any idea.=
..<br>
> >> I need to trigger videos projected by tree projectors.<br>
> >> The videos should be trigger by the subtle air or wind produc=
ed by the<br>
> >> walking of the viewers on a room. The viewer will =A0be surro=
unding by the 3<br>
> >> video projections.<br>
> >> My first idea was to use video cameras connected with MAXmsp =
and create a<br>
> >> grid to mark and read the movement of the people on the space=
.<br>
> >> But, it will be better if =A0is possible to measured the air =
produce by<br>
> >> their movement, because conceptually works better with the vi=
deo<br>
> >> installation that i working on it.<br>
> >> Any idea to how to resolve this?<br>
> >> I was wondering if there is any kind of wind sensor that can =
be connected<br>
> >> in to Arduino...<br>
> >> IDEAS?<br>
> >> I am really appreciated your help!<br>
><br>
> >> Thanks<br>
> >> Alexandra<br>
><br>
> >> --<br>
> >> You received this message because you are subscribed to the G=
oogle Groups<br>
> >> "NYCResistor:Microcontrollers" group.<br>
> >> To post to this group, send email to<br>
> >> <a href=3D"mailto:nycresistormicrocontroll...@googlegroups.co=
m">nycresistormicrocontrollers@googlegroups.com</a>.<br>
> >> To unsubscribe from this group, send email to<br>
> >> <a href=3D"mailto:nycresistormicrocontrollers%2Bunsubscribe@g=
ooglegroups.com">nycresistormicrocontrollers+unsubscribe@googlegroups.com</=
a>.<br>
> >> For more options, visit this group at<br>
> >><a href=3D"http://groups.google.com/group/nycresistormicrocont=
rollers?hl=3Den" target=3D"_blank">http://groups.google.com/group/nycresist=
ormicrocontrollers?hl=3Den</a>.<br>
><br>
> > =A0--<br>
> > You received this message because you are subscribed to the Googl=
e Groups<br>
> > "NYCResistor:Microcontrollers" group.<br>
> > To post to this group, send email to<br>
> > <a href=3D"mailto:nycresistormicrocontrollers@googlegroups.com">n=
ycresistormicrocontrollers@googlegroups.com</a>.<br>
> > To unsubscribe from this group, send email to<br>
> > <a href=3D"mailto:nycresistormicrocontrollers%2Bunsubscribe@googl=
egroups.com">nycresistormicrocontrollers+unsubscribe@googlegroups.com</a>.<=
br>
> > For more options, visit this group at<br>
> ><a href=3D"http://groups.google.com/group/nycresistormicrocontroll=
ers?hl=3Den" target=3D"_blank">http://groups.google.com/group/nycresistormi=
crocontrollers?hl=3Den</a>.<br>
<br>
--<br>
You received this message because you are subscribed to the Google Groups &=
quot;NYCResistor:Microcontrollers" group.<br>
To post to this group, send email to <a href=3D"mailto:nycresistormicrocont=
rollers@googlegroups.com">nycresistormicrocontrollers@googlegroups.com</a>.=
<br>
To unsubscribe from this group, send email to <a href=3D"mailto:nycresistor=
microcontrollers%2Bunsubscribe@googlegroups.com">nycresistormicrocontroller=
s+unsubscribe@googlegroups.com</a>.<br>
For more options, visit this group at <a href=3D"http://groups.google.com/g=
roup/nycresistormicrocontrollers?hl=3Den" target=3D"_blank">http://groups.g=
oogle.com/group/nycresistormicrocontrollers?hl=3Den</a>.<br>
<br>
</div></div></blockquote></div><br></div>
--f46d0418283aac139904b41917cd--
Message from discussion Connecting a wind sensor and Arduino to control a video projection
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