Table 1:

Mask R-CNN detection and training hyperparameters

Variable	Description	Recommended Range
$c_{\text{min}}$	Confidence threshold for Mask R-CNN	[0.7]
$t_{\text{real}}$	Footprint cosine similarity threshold	[0, 5, 0.8]
$t_{bin}$	Binary mask cosine similarity threshold	[0.5, 0.8]
$n$	# of frames of $\tilde{Z}$ on which we run Mask R-CNN for each local region	[50, 150]
$m$	Max # of neuron footprints in simulated video	dataset dependent
$p$	Percentile threshold for deconvolved traces	[40, 80]