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Detecting and Tracking Multiple Targets Simultaneously with Cloud Recognition

April 28, 2013 - 11:37am #1

Developing an Android Application, using the SDK through Android NDK like in the Sample Apps, i noticed that in the Cloud Recognition Sample App (the one about the books) the update callback (QCAR_onUpdate) that detects and creates new Trackables, is fixed to get the result at index 0. Also at the render function, from the state only one trackable result is queried and used to render.

I tried iterating over all the results, but It seems only one result is ever available. As I programmed many things to support simultaneous augmentation on multiple targets, I was wondering if there is a way to track multiple targets simultaneously with Cloud Based Recognition as in the Image Targets Local Sample App? Also if there isn't, is it posible to combine local tracking with cloud based, so as to have some general target areas where al the Cloud Loaded content could display simultaneously?

 

Thanks, great work by the way.

Detecting and Tracking Multiple Targets Simultaneously with Clou

December 15, 2014 - 9:14am #8

Yes.

Detecting and Tracking Multiple Targets Simultaneously with Clou

December 11, 2014 - 3:11pm #7

It has been a year since the last answer. Is the limitation still present?

Detecting and Tracking Multiple Targets Simultaneously with Clou

December 10, 2013 - 8:33am #6

That's unfortunate. Thank you for your quick response!

Detecting and Tracking Multiple Targets Simultaneously with Clou

December 10, 2013 - 8:31am #5

Yes, as of today.

Detecting and Tracking Multiple Targets Simultaneously with Clou

December 10, 2013 - 8:30am #4

Is this information still valid, Cloud Recognition can only track one target at a time?

Detecting and Tracking Multiple Targets Simultaneously with Clou

April 29, 2013 - 11:39am #3

Thanks for the clarification and link, I'll look into it.

Detecting and Tracking Multiple Targets Simultaneously with Clou

April 28, 2013 - 12:55pm #2

Cloud Recognition can only maintain one target at at a time, but you can mix Cloud and Device targets to achieve what you're describing.

see: https://developer.vuforia.com/resources/dev-guide/simultaneous-use-cloud-reco-udt-and-device-databases

 

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