Fig 9. Success rate of the observed 3D registration approaches on Radiological data.
x-axis: initial displacement dInit between moving and fixed images, discretised into 10 equally sized bins (marked by vertical dotted lines). y-axis: success rate λ within each bin (averaged over 3 folds). In the legend, cyc, drit, p2p, star and comir denote CycleGAN, DRIT++, pix2pix, StarGANv2, and CoMIR methods respectively. Suffix _A (resp. _B) denotes that generated Modality A (resp. B) is used for the (monomodal) registration. B2A denotes registration of the original multimodal images, without using any modality translation. MI, MIND and NGF represent using MI maximisation, MIND and maximisation of the similarity of NGF for registration, respectively.