Re: Particle/Object Tracker

[Guy Levy]

Dear Judit,
Sorry for the late reply. Its a while since I checked this email.
I can suggest another tracker plugin (ParticleTracker), one that I wrote.
You can find it at http://weeman.inf.ethz.ch/particletracker/
 
I'm not sure it will do the trick but maybe. It was originally developed for virus tracking, but apparently worked reasonably well for other stuff.
In any case, Ill be happy to get a feedback.
 
Good luck,
Guy



> Date: Fri, 1 Dec 2006 12:26:18 +1000> From: [hidden email]> Subject: Particle/Object Tracker> To: [hidden email]> > Dear all,> > I am trying to use automated tracking to analyse the motion of field > crickets (responding to sound), as opposed to manual tracking which > though serves the purpose is quite tedious for the # of > frames/sequence and # of sequences I am analysing.> I may be wrong but for my purposes it seems Object Tracker is the most > appropriate.> Unfortunately, I can't quite get the program to recognize the cricket > as the object to track.> I have followed the steps provided in Ross Lang's test stack for > tracking termites and have tried to apply the same to my own sequences > of a moving cricket.> However, during conversion from the greyscale to binary image sequence > (where background is subtracted from the image stack) the cricket is > not picked up.> When I look at adjusting the threshold, the cricket has disappeared > entirely, instead !
 of being the only part of the image sequence to > remain, as happens in the termites example.> The only difference I can think of between my own images and that > provided in the test stack of termites, is that my cricket is black > (termites = white) and the background is white (termite background = > grey).> Does anyone know if this contrast is the issue? Or is it that the > outline of the object (cricket) needs to be well defined? Or any other > suggestions? > Has anyone applied automated tracking on insects (or other macro-> organisms)?> > > Judit Kibedi> PhD Student> [hidden email]> School of Biomedical Sciences> Physiology & Pharmacology> UQ - St Lucia> Brisbane 4072> Australia> ph1: [phone]> ph2: [phone]> mob: [phone]
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