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How to find a covered element in an image using Vuforia?

July 22, 2019 - 11:33am #1

Hello, I'm trying to make an augmented reality application about chemistry using Vuforia and Unity3D. I will physically have a big image of periodic table of elements and some small spherical objects, and I don't know how to determine which element is covered by the sphere when i put it on the periodic table.
Does anyone have an idea or has done this already?
I will next associate that chemical element with the sphere.

How to find a covered element in an image using Vuforia?

July 25, 2019 - 10:39am #6

Hello @Sorincr,

If you decide to evaluate the Virtual Buttons feature as a solution, here are some things to be aware of:

  1. Sensitivity of the Virtual Button can be related to the size of the area specified. In other words, if you use a small Image Target with a Virtual Button, it may be more difficult for the SDK to trigger a "button press" response. Thus, best results are likely to be found if the Image Target is printed to a larger form factor.
  2. Virtual buttons are created as squares/rectangles, so the sensitivity of the button may decrease if you occlude the region with a circular/spherical object.

Good luck!

-Vuforia Engine Support

 

How to find a covered element in an image using Vuforia?

July 25, 2019 - 3:38am #5

medabit wrote:

Hello @Sorincr,

I'd like to also suggest that you consider the Image Targets add-on feature called Virtual Buttons:

https://library.vuforia.com/content/vuforia-library/en/articles/Solution/How-To-Implement-Virtual-Buttons.html

What I'm not clear about is if the feature has enough sensitivity to detect a single element being covered. We'll ask the development team for recommendations about this for your use case and respond back.

Thanks,

Vuforia Engine Support

I also thought of this option as an alternative. Thanks a lot for your answer! BR!

How to find a covered element in an image using Vuforia?

July 25, 2019 - 3:36am #4

Hi,

Thanks a lot for your suggestion, and I'am sorry for duplicate post.

Thanks,

BR!

 

How to find a covered element in an image using Vuforia?

July 23, 2019 - 11:36am #3

Hello @Sorincr,

I'd like to also suggest that you consider the Image Targets add-on feature called Virtual Buttons:

https://library.vuforia.com/content/vuforia-library/en/articles/Solution/How-To-Implement-Virtual-Buttons.html

What I'm not clear about is if the feature has enough sensitivity to detect a single element being covered. We'll ask the development team for recommendations about this for your use case and respond back.

Thanks,

Vuforia Engine Support

How to find a covered element in an image using Vuforia?

July 23, 2019 - 6:56am #2

Hi,

Depending on how big the image of the periodic table is, one option would be to move the spheres above each corresponding element.

My advice is go trough our training materials here. (Getting Started with Vuforia Engine in Unity)

Thank you,

Vuforia Engine Support

 

+ deleted your duplicate post from today.

 

 

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