Input images to dRHE-MRAC and resulting pseudo CT images. Relative to MRAC-1 and MRAC-2, dRHE-MRAC shows improved pseudo CT estimation. Three 2D slices of (a) a UTE image without bias correction, (b) a UTE image with bias correction, (c) an out-of-phase image, (d) a water image, (e) a fat image, (f) a segmented air image, (g) a segmented bone image, (h) a dRHE-MRAC pseudo CT image, (i) a MRAC-1 pseudo CT image, (j) a MRAC-2 pseudo CT image, and (k) a CTAC image used as ground truth.