Hi- Can someone help me understand how to implement SLAM with vuforia? Which is better - Smart terrain or User Defined targets? Thanks

Hi @gemelo,

nice reminder. I had a look at some demos/samples from vuforia and found one very interesting.

It's the "UserDefinedTargets-5-5-9.unitypackage". This is somehow an "Instant Tracking" where you can make an image with the buttons which is then used on the fly as the tracking marker.

Additionally you can check the "Enable Extended Tracking" on the "UserDefinedTarget" gameobject in the scene and you have some kind of SLAM I would say. I was pretty impressed by the result. I scanned a label of a bottle and could move 360 around the bottle and the teaport was still visible in place on the label. Even when I was at the back of the bottle! It's pretty cool and I'm lucky that I found this sample incidentally.

@vuforia devs: Can you give some more insights into how the "Extended Tracking" is working? I've read the docs and this (https://developer.vuforia.com/library/articles/Training/Extended-Tracking) for example. To be really sure how it can be used it would be nice to get some more details about the technology. Is it some SLAM like in this (https://www.qualcomm.com/invention/research/projects/computer-vision/slam) research video?

Thanks

would be interesting for us to know, too.

Cheers

Thies

Any news on this topic? Is it known if you guys are working on a 3D tracking option?

Thanks

Currently that is correct. You need to detect a target first.

Thanks for the reply.  So, based on your comment Vuforia does not offer independent Instant / SLAM tracking.  Smart Terrain is about the closes but requires the user to scan an image marker first.

Is this correct?

Atmo wrote:

If no, could the User Defined target be used to 'start' the Smart Terrain or Exteded Tracking?

From our release notes: "Extended Tracking can only be used for a single UDT target at a time"

http://developer.vuforia.com/library/articles/Release_Notes/Vuforia-SDK-Release-Notes