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Import 43 000 Target

January 22, 2020 - 6:18am #1

Hi

I have 43 000 Target to import in my Vuforia database.

All are image with less than 1mb size.

Will I need to import them manually 1 by 1?

 

Thank You

Import 43 000 Target

January 23, 2020 - 12:06am #2

Hi,

Importing 43000 image targets will results in some issues, please review below information.

https://library.vuforia.com/articles/Solution/How-To-Work-with-Device-Databases.html

Vuforia's recommendation is a maximum of 1000 Image Targets in a single device database. However, there is no hard limit to the number that can be included.

That being said, you should be mindful of the amount of memory and CPU that your application will use when loading a large device databases. Vuforia adds each target in the device database to a dynamic search tree in your app's memory. Dynamic loading and unloading of device databases can be utilized to optimize memory usage (see DataSet APIs below). This technique can also help with CPU utilization during detection and tracking as Vuforia will require additional processing when attempting to detect large numbers of Image Targets in each camera frame. This is especially true for target detection, which is more CPU intensive than tracking.

Here are pointers to the DataSet APIs:

https://library.vuforia.com/content/vuforia-library/en/reference/cpp/classVuforia_1_1DataSet.html

https://library.vuforia.com/content/vuforia-library/en/reference/java/classcom_1_1vuforia_1_1DataSet.html

https://library.vuforia.com/content/vuforia-library/en/reference/unity/classVuforia_1_1DataSet.html

If you are attempting to utilize more than 1000 trackables, then we normally recommend our CloudReco products: https://library.vuforia.com/content/vuforia-library/en/articles/Training/Cloud-Recognition-Guide.html. There are two 'flavors': SDK APIs and Web APIs. Upon successful recognition, SDK APIs will return a single Image Target trackable (based upon the closest match) for 6DoF tracking experiences. Web APIs will return a prioritized list of target IDs, in match confidence order, but do not support 6DoF tracking experiences.

Coming back to your question, you could use our new feature Image Targets at Run-time to facilitate an easier upload process. Documentation on how-to below: https://library.vuforia.com/content/vuforia-library/en/articles/Solution/how-to-create-and-load-targets-in-unity.html

Thank you.

Vuforia Engine Support

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