Reconstruction error in terms of the Frobenius norm (Eq. (B.1). From top to bottom: for 64 × 64, 128 × 128, 256 × 256, and 512 × 512 spatial pixels. From left to right: for the imaged sky: the point sources and the diffuse component. The green line marks the reconstruction error as a function of time for the pure MF reconstruction. The light blue line marks the reconstruction error of the SF reconstruction as part of the transition model and, correspondingly, the black line marks the transition and the blue line marks the subsequent transition model MF reconstruction. In the iterations of the SF model, we typically anticipate lower reconstruction error in terms of small Frobenius norm. This expectation is attributed to the model’s consideration of a smaller space.