Re: [tisch-users] Make libtisch2 work with a Kinect on Windows 7

[Norbert W. <wie...@in...>]

Good morning Rudi,

that's great that you are still interested in our work with libTISCH :D
I will try to provide some help so you can fix your issues ;)

On 03/20/2012 11:54 PM, Rudi Bonfiglioli wrote:
> Hello there,
> I am still trying to make libtisch work properly, this time with a
> Kinect. I am also running W7. I basically followed this tutorial:
> http://www.youtube.com/watch?v=ErQW7EAOqfI
Great ;) You are the first person giving me directly feedback to my
tutorial, thx :D
> but instead of using the glut version in the repo, I have used version
> 2.6, as suggested by a previous email. I used the last version of
> pthread and openkinect (stable). I compiled everything and launched
> using the standard xml config file. However, I faced the following
> problems:
Ok, I think this one needs some words of explanation:
Use freeglut 2.6 from the webpage of freeglut IFF you are working with a
mouse as input device.
Use freeglut provided in the repository IFF you use Kinect, FTIR inputs
and so on ...
the reason is as follows: the version in the repository has the
multitouch patch directly included necessary for Kinect and so on ;) But
that patch interferes with "singletouch" input "mouse".

So, use the freeglut version in the repo for working with your Kinect. I
hope this helps.
> - In the video tutorial, the presenter at some point switches from a
> gray-scale video stream from a normal one, and this seems to be quite
> useful when filtering the area, but how to do it? It's not mentioned
> in the video.
This is a quite experimental feature I am working on currently, I am not
sure whether this is already available in the repo. You can try it:
when touchd is running start the configurator (pressing "c") and switch
to color image (pressing "m")
Since this feature is only reasonable using a Kinect I have to check
whether it is already applied in the current repo version ...
> - After setting an area filter and resetting the BGSUb-filtering, I
> save, and without closing, I launch calibtool.exe. Here, in the video
> it says I should tap the corners, but what happens is that I have to
> tap many, many times every corner in order to make the calibration
> work, and moreover, it not always works.
That depends on the recognition of your taps as "touches". Perhaps you
have to fiddle around a little with the thresholding parameters and you
should not move much your finger when you calibrate, so when you touch
the surface

> After the fourth corner, it asks me to touch another corner even
> though there is no X on the screen. On the prompt the programs says it
> is "exiting", but it does not.
Yes that is known, if all four corners are properly detected, simply
kill calibd.exe with Crtl-C ;)

> At this point, I think I should run calibd.exe, but it crashes if I
> try to run it. To have it run, I need to force calibtool to terminate.
> Then, it works. But still. when I launch demo.exe, I can't control
> anything.
I think that comes because of the wrong freeglut version ... as
described above.
>
> Do you think you could help me to have the framework work? I have
> noticed touchd.exe prints quite a low fps counter (9-11), could it be
> an issue?
Hmm sound strange cause I do get framerates ~ @30fps
> Am I doing something wrong in the setup procedure? What are the most
> important things I should make sure exist in my physical setup
> (particular lights, or what?)?
Yeah, there shouldn't be other IR light emitting source around, cause
Kinect is working with IR to retrieve depth information.
> Also, is there a well tested combination of the various versions of
> libtisch/openkinect etc (like repo revisions)?
> Greatly thankful in advance,
>
> Rudi
I hope this statements where helpful and you get everything running ;)
cheers Norbert
>
>
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