Is there any guidance on using Create ML for creating segmentation models (great for use in ARKit to segment unique types of objects as detected in the camera feed)? Or would this be a case for building a custom Turi/other model and converting to Core ML?
The first thing I would try is the DeepLabV3 model! Which can be found here:
https://developer.apple.com/machine-learning/models
You can also convert your custom model using coremltools