[HacktionLab] micro workshop idea - interactive meetings using laser pointers

[Mike Harris]

On 30/05/2013 13:47, johnc wrote:
>
> This type of problem is known as blob detection. There are some good
> free machine vision libraries for doing this including opencv. There's
> quite a lot of samples included with these libraries.  I played with
> some edge detection stuff in python a while ago and got it working
> with a web cam without too much hassle. Also Beth has some some recent
> experience with machine vision stuff in C so she might be able to give
> you some code to get you started.
we could always all wave our hands about to decide whether we agree on
where the blobs are ... ;)
>
> P.S. hope those lasers are Class I so we don't blind anybody
>
> On 30/05/13 10:40, Andy S wrote:
>
>
> > On 29 May 2013 17:42, Mick Fuzz <mickfuzz at clearerchannel.org
> <mailto:mickfuzz at clearerchannel.org>> wrote:
>
> > On 29/05/13 17:25, Gareth Coleman wrote:
> > >
> > > You could call out for a vote at specific times, and it would take
> > > just a few seconds for everyone to get their spot on target and then
> > > the results would be visible. Each vote is equal, unlike our voices
> > > which have a certain 'power' despite all our efforts to consciously
> > > equalize them.
> > I love this idea! Let's do it.
>
>
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>
>
> > B
> > e interesting to see how you count the laser spots especially when
> they are spread evenly across the selection as they will all be moving
> quite a lot, unless people have very steady hands. Obviously the more
> people involved, the harder this gets, unless you have an automated
> process to count them (well lets face it, a photo would do!)
>
> > A
>
>
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Mike Harris
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