Table 2.

The pre-trained model parameters

	Model 1	Model 2	Model 3	Model 4
Emitter density Emitters $\left[\frac{1}{{\mu m}^2}\right]$	0.5	1.0	1.5	2.0
Signal-to-noise ratio	8	6	4	2

As the difficulty level increases, the emitter density increases, and the signal-to-noise ratio decreases. Decoupling those two parameters and producing a larger number of pre-trained nets did not make a substantial difference to the results.