I'm currently working on an iOS App where I want to detect if there is a table, chair or bench in the current camera input.
My idea was to take the MobileNetV2 model and get it to classify these three categories with transfer learning in TensorFlow. Because there are cases where none of these three objects are visible, I would add a fourth class "none" and feed it with random pictures of different unrelated things.
Is this approach a good idea, or is there a better way of doing this?