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Building recognition

September 9, 2018 - 2:31am #1

Hey guys,

I want to do something like this:

-1 big building

-you stand about 30m away from it (you will only be able to get part of the building - about 30% - on camera)

-I want to highlight certain building features, like the entrance, art or rooms (from the outside)

-Some features wont be good enough to track on their own - so I need something like anchor points in relation to the wanted building feature, to then highlight the right thing

-When I move around with the camera and scan other parts of the building it should still recognize the building and put certain overlays in the right place/position on the building

-So I bascially need to recognize smaller parts and keep them in the right place of the "bigger picture"

I uploaded an example picture (not the real building).

The "Flag" will probably get recognized, the rooms most likely not since they kinda look alike, so I would need the flag for instance as an anchor point. The green spray can thingy shows the part of the building which should be recognized and mildly highlighty with a green color or whatever, I dont know yet. Just to make it clear to the user, that THIS building part is actually recognized. I saw a similar youtube video, but without explanation and he didnt really move the camera around.

 

My experience with vuforia so far, was about smaller objects, which I held in my hand, so I dont really know how I should start a project like that.

Can you push me in the right direction, or give me a good idea on how to start?

I know that, I will need to code  a fair amount, since I have some logic behind the application anyway

 

Thanks in advance

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Image icon vuforia_forum_example.jpg6.89 MB

Building recognition

September 10, 2018 - 10:59am #2

Hello thenewARguy,

Based on the screenshot you shared, you might be able to use Model Targets to detect the building from that view. You would need the 3D model of the building in order to do that however and I'm not sure how feasible that is for you. This feature would allow you to easily be able to augment the various sections you mention in your post as you would have the 3D model available to modify in Unity and display over the actual building once the Model Target has been detected.

Outside of Model Targets, from that distance away and the types of augmentations you are looking for, it might be difficult to do this with another feature. It might be possible to create an Image Target out of one of the segments of the building and attempt to augment the various sections and/or the full building around the Image Target, but aligning the augmentations using this method would be very difficult and likely inaccurate without perfect conditions.

Thanks,

Vuforia Engine Support

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