Computer Vision Based Indoor Positioning System

Hello everyone,

Does anyone worked or know if there is a system that does indoor positioning with camera? Because bluetooth based systems have limited range. Idea is like this:
To train a model with images of building inside. So if a user takes a photo of random place of building inside, the model will know where is taken, and it will place a dot maybe on map. Map will be ready because user will download the 2D plan of that …

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