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fxrazno1 · 10-15-2012, 06:26 PM

[/size]Hi
I will like to use the VisionLab VCL components to
develop a real time video tracker.
I need to user to click on the video image and then use visionlab
to find a target to lock on.
Then I need to move a pan and tilt video camera according to
the target movement.
You can look to an example here:
http://www.trackertechnology.com/demos.html

Is there a way of doing so, and if so what components of visionlab
should I use and in what way.
If you can send me an example I will appreciate it.
I looked at the TargetsTrackDemo.exe example but I need to keep tracking the object near the mouse click all the time. In the example
the acquired targets change all the time.
Thanks Allot
Raz

10-15-2012, 07:40 PM

Have a look at the TargetsTrackDemo. [E:didn't have my coffee yet Confused

]

Regards,
Dave

fxrazno1 · 10-15-2012, 08:38 PM

(10-15-2012 07:40 PM)Dave Wrote: Have a look at the TargetsTrackDemo.

Regards,
Dave

Hi
I took a look at the targetsTrackDemo and has I wrote before it doesn't emplement all the things I need.
Did you check the link to the web site that shows a video tracker ?
Thanks
Raz

10-15-2012, 11:19 PM

You can add your targets manually for a VLTrackTargets component, for moving the camera to follow the object you should be able to use a VLDSCapture and set the CameraControl->Pan/Tilt properties.

Regards,
Dave

fxrazno1 · (This post was last modified: 10-17-2012 08:33 PM by fxrazno1.)

Hi
Can you explane in detial how changes to this values in the TVLTrackTargets effect the tracking:
1. Level
2. TerminationCriteria - Epsilon & MaxIteranation
3. WindowSize

Also can you explane this parameters of TVLTrackTargetList:
1. Targets.Error
2. Tragets.Found

Thanks
Raz

10-17-2012, 10:48 PM

The bigger the Targets.Error property gets the more probable that it might be mistaking it's target, e.g. if the error has a value of <10 it's pretty certain it still has the right target but when >100 (for example) it might be on the wrong spot. Targets.Found is a boolean, simply if it found the target in the image. Whether it's found in the image depends on the first properties you asked about, usually the defaults work fine and in case you have some very exotic images you can experiment a bit to possibly get some better results.

Regards,
Dave