Qualitative results and registration uncertainty estimate with TransMorph-Bayes. The fourth and the fifth columns exhibit the appearance uncertainties estimated using the proposed uncertainty estimation scheme (i.e., ). The last column shows the transformation uncertainties, i.e., , where the uncertainty maps were taken as square root of the sum of the variances of the deformation in x, y, and z direction. The spatial dimension x, y, and z in the displacement field is mapped to each of the RGB color channels, respectively. The [p, q] in color bars denotes the magnitude range of the fields.