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Persistent extended tracking and Extended tracking

April 23, 2015 - 1:13am #1

I understood the difference between the two in technical terms (map creation continuous and not), and I also have been able to enable/disable both at runtime, but I can't understand in terms of real applications where one is more suited than the other.

I have a target that may be held in the hand, so it's moving, and Extended tracking is off.

When the target is left on a surface, static, the user in my app can activate the Extended tracking and can move much further from the tracker.

If I also enable Persistent Extended Tracking, what is supposed to change? how can my app benefit from it?

Thanks

 

Persistent extended tracking and Extended tracking

April 29, 2015 - 3:18am #3

Thanks, but this is the technical explanation, and I understood it.

What I'm asking is if you can make me a concrete example of a real case scenario of why would I need to turn on PET and decide when to reset.
I don't get when things can go wrong with extended tracking that I would need not to rebuild the map automatically.

 

Thanks,

Mattia

Persistent extended tracking and Extended tracking

April 28, 2015 - 8:13pm #2

The following guide explains it well:

https://developer.vuforia.com/library/articles/Training/Extended-Tracking

Persistent Extended Tracking (PET) is a mode of Extended Tracking. During Extended Tracking, Vuforia automatically rebuilds the map to adapt to the changes (movement in scene, etc.). If you want to control when this rebuilding occurs, you can turn on PET and call the resetExtendedTracking() manually.

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