[PD] pix_openni crash Pd

[Jack]

Le 28/02/2012 15:57, Matthias Kronlachner a écrit :
> Am 28.02.12 15:47, schrieb Jack:
>> Le 28/02/2012 06:25, Matthias Kronlachner a écrit :
>>> Am 28.02.12 00:00, schrieb Jack:
>>>> Le 27/02/2012 15:51, IOhannes m zmoelnig a écrit :
>>>>> -----BEGIN PGP SIGNED MESSAGE-----
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>>>>>
>>>>> On 2012-02-27 15:20, Jack wrote:
>>>>>
>>>>>> I use Ubuntu 11.04, Pd 0.42.6 and Gem 0.93.git fad1264.
>>>>> upgrade Gem to at least "0.93.git 1482ffb1538"
>>>>>
>>>>> and do a complete rebuild of Gem.
>>>>>
>>>>> fgmasd
>>>>> IOhannes
>>>>> -----BEGIN PGP SIGNATURE-----
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>>>>> Comment: Using GnuPG with Mozilla -http://enigmail.mozdev.org/
>>>>>
>>>>> iEYEARECAAYFAk9LmGcACgkQkX2Xpv6ydvTHpgCghXseYp2gv0VYyFvtaCKBFH9u
>>>>> ATUAoN73DbawoPq8HzU0MZsWULJf2UcV
>>>>> =/cUU
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>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>> UNSUBSCRIBE and account-management ->  http://lists.puredata.info/listinfo/pd-list
>>>>
>>>> OK, i upgraded Gem to ver: 0.93.git f1a1841 and now i can render 
>>>> the scene without crash.
>>>> But, i can't see anything working there : I get a blue sphere where 
>>>> it is write 'gem' and a white rectangle in the top-left corner 
>>>> (even if i select 'rgb 1' in [pd properties]).
>>>> If i click on the message 'video_mode' in this subpatch, Pd crash. 
>>>> And if i click on 'bang', nothing happens in the console (there is 
>>>> no available modes).
>>>> I miss something ?
>>>> One comment : it is very strange to see two [gemhead] connected 
>>>> directly in [pix_openni]. Is there a meaning ?
>>>> Thanx for help.
>>>> ++
>>>>
>>>> Jack
>>> hi!
>>>
>>> did you check if the examples included in OpenNI and Nite work? (eg. 
>>> Sample-NiSimpleViewer, Sample-SceneAnalysis)
>>> they should be somewhere in the Samples/Bin folder.
>>> if they don't work, pix_openni won't work.
>>>
>>> ok the crash with video_mode and depth_mode msg is fixed now. but it 
>>> happend only if image or depth was not started. i was a little bit 
>>> lazy testing everything without working kinect plugged in.
>>> if you send a [bang( it now writes an error message to the console 
>>> if no device is available.
>>>
>>>
>>> so i think you have a problem with your openni/sensor kinect 
>>> installation.
>>> did you install sensor kinect? this is the driver which allows 
>>> openni to access the kinect sensor. 
>>> (https://github.com/avin2/SensorKinect)
>>> you also need the unstable release of OpenNI (-> see install 
>>> instructions from SensorKinect)
>>>
>>>
>>> the two gemheads have a meaning - of course.
>>> pix_openni outputs two separated pixes - one "rgb" image from the 
>>> camera (left gemhead and outlet) and one depth image in various 
>>> formats from the depthsensor (right gemhead and outlet).
>>> actually it's more implementation side - it could be realized with 
>>> one gemhead as well. but i did it this way and for me it's logical.
>>> you can also make it with one gemhead and a [t a a] if it looks 
>>> better for you:
>>>
>>> [gemhead]
>>> [t a a]
>>> |     |
>>> [pix_openni]
>>> ....
>>>
>>> matthias
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
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>>>
>> Hello,
>>
>> OK, it is working now.
>>
>> In the pix_openni/README, i would prefer to follow these instructions 
>> in 5 steps (in the middle of the page) :
>> http://groups.google.com/group/openni-dev/browse_thread/thread/49a4dd13c045c1a2
>> instead of :
>> *    get and install OpenNI, NITE and the hacked Primesense Kinect driver
>>     --> instruction: https://github.com/avin2/SensorKinect
>> http://www.openni.org/Downloads/OpenNIModules.aspx
>>
>> And all should be OK.
>>
>> Matthias, the hand tracking should work fine ?
>> Thanx for this external.
>> ++
>>
>> Jack
>>
>>
> ok, i will check that. thanks.
> i think things change every month about installing 
> openni/nite/sensorkinect.
> but as you found out there are enough resources that help you with the 
> installation out there.
> thats why i prefer pix_freenect for projects that don't need skeleton 
> tracking. it's a lot more easy to install and i think also cheaper in 
> computation power.
> the output format of these two objects is basically compatible. so you 
> can always exchange them if you don't need external tracking stuff.
> just a few initialization messages depending on which output mode you 
> want to have can be different.
OK, good to know.
>
> for hand tracking you have to make a waving gesture.
> wave your hand several times after you activated it. after some time 
> nite should recognize your hand and start tracking.
> if you want more easy hand tracking there is the possibility to use 
> pix_multiblob in combination with filtering the depth image.
OK, I will try it in the minute.
>
> if you want to track severall hands you can check the Nite.ini files 
> located in these folders: /usr/etc/primesense/Hands_1_*
> and uncomment the lines there (remove the ;   )
Yep.
>
>
> thanks for your reporting. that helps to make it more stable.
Thanx for your work.
++

Jack


>
> matthias
>

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