Table 4: Core parameters for the baseline architectures.

Compared to the GRU baseline, the amount of channels in the core was increased sequentially.

Baseline	Core	Layers	Channels	Input Spatial Kernels	Spatial Kernels
GRU	Rotation-equivariant	4	8	9 × 9	7 × 7
3D Factorized	3D factorized	3	32, 64, 128	11 × 11	5 × 5