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local Cache for cloud Recognition

October 9, 2017 - 6:30am #1

Hello,

I want do develop a on device cache for the cloud recognition database, which should loads images which are the closest to the device directly to the device cache. So the plan is that the app first tries to find images from the device cache and if it fails it asks the cloudrecognition database.

Is that possible?

If yes, do you have any hint how?

Thanks!

local Cache for cloud Recognition

October 10, 2017 - 2:11pm #4

You can run the device recognition and cloud recognition in parallel. You can pull in a custom image target into the sample app cloud reco scene to test it out.

Thanks,

-Vuforia Support

local Cache for cloud Recognition

October 9, 2017 - 10:33am #3

Hello,

Is it not possible to use the device recognition and cloud recognition in parallel? 

If there is a new camera frame try to recognize with the device database and if nothing is found send the frame to the cloud recognition?

 

Thanks,

babababammmm

local Cache for cloud Recognition

October 9, 2017 - 9:57am #2

Hello babababammmm,

Yes you can try to find an image with the device database first and then move to the cloud database if that isn't found. However, the device database will only inform you when it has found and then lost a target so you will need to come up with a method for deciding when to switch from using the device database to the cloud database. Perhaps a time limit for using the device database before moving on to the cloud database.

It is possible to dynamically load and set device databases at runtime in order to determine which set of target to be scanning against initially if you are planning on having different sets of local target to check against initially.

Here are a handful of articles related to the sort of functionality you're looking for. I definitely recommend looking through these if you haven't already, but feel free to follow up with any other questions.

https://library.vuforia.com/articles/Solution/How-To-Access-and-Modify-Targets-at-Run-Time.html

https://library.vuforia.com/articles/Solution/How-To-Implement-Cloud-Reco.html

https://library.vuforia.com/content/vuforia-library/en/articles/Training/Using-the-VWS-API.html

Thanks,

-Vuforia Support

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