Ah, yes the lack of pretrained models is troublesome… all the publications raise expectations, but in the end there aren’t implementations ready to use Hopefully fuller support in QuPath will help address this and encourage more model sharing… and there is also this to look out for: https://bioimage.io
I like the idea of having gold standard implementations. If any of yours are online I’d be happy to have a look.
There might not be any need to convert them to TensorFlow – in QuPath, the early TensorFlow/StarDist example is really just a starting point for demonstration purposes, but fundamentally QuPath is designed to support alternative frameworks (at least whichever we can get to play nicely with Java) via the same interface. We plan to explore ONNX very soon, but right now we don’t have any terribly worthwhile models in this format to test. If your starting point is fastai2, then I think ONNX export should be easier.