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Track (Vector3D)

module blob contour id spread tracking


This contribution helps to restore a certain spread order from a unordered list of coordinates. This is necessary if you do touch detection or even 3D blob tracking yourself or if you use a Tracker, that handles IDs badly.

Instead of doing it in a plugin, I tried to do as much as possible with good oldschool patching. It would not have worked without the advanced spread nodes, so thanks to woei.

The upload includes generic plugin NearestPair, which can be used similarily to ConnectAll or NearestNeigbour.

This contribution is part of the PointCloud toolkit and its most current version can be found at github.


Track (Vector3D).7z
27.06.14 [18:26 UTC] by velcrome | 835 downloads
Version 1.1
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Track (Vector3D).7z
22.06.14 [02:14 UTC] by velcrome | 264 downloads
Version 1.0 incl. Help Patches

tekcor 22/06/2014 - 21:29

Hey velcrome nice one this is very usefull. Will try to use it next time the dynamic spread + Unique ID problem comes up again. So far I worked in this case with a fixed spread size in this case and dynamically isert at certain slices the elements of the dynamic spread.

Noir 23/06/2014 - 02:05

Tnx for sharing

velcrome 27/06/2014 - 18:29

Found some inconsistencies when reactivating ghost IDs and fixed them. also I am now caching Ghost IDs in a special (generically implemented) Cache (Vector3D), that automatically removes IDs depending on their age.

circuitb 04/07/2014 - 03:41


Gareth.Griffiths 09/07/2014 - 10:12

Very nice. This has potential uses for sensors other than just touch too!

velcrome 16/02/2015 - 00:51

This contribution is part of the PointCloud toolkit and its most current version can be found at github.

mediadog 19/05/2015 - 20:05

This is very useful, and would be even more so if there was a "Previous Slice" output so other associated data could be easily re-ordered. I could not see how to easily modify this patch, so I am using another NearestPairs node after it to get the previous slice positions. Or is it here somewhere and I'm missing it? Thanks!

velcrome 20/05/2015 - 21:04

you are correct, and if you download the most current version here you will see your dream come true ;)

anonymous user login


~19h ago

joreg: @guest am afraid we can't manage this. if someone wants to take this on, let us know..

~20h ago

guest: @joreg, please stream :-)

~21h ago

joreg: reminder: tonight: #vvvv meetup in #berlin: 9-berlin-vvvv-meetup

~1d ago

manuel: @dawoof nope. just the mosaic option.

~4d ago

dawoof: Did u use the NVAPI to do the warping and other functions?

~5d ago

manuel: @dawoof I did. Just some tests. with the sync card you get no tearing thats great.

~6d ago

dawoof: has anyone used nvidia MOSAIC and VVVV? (without vioso or automated callibration)

~6d ago

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