Osteoporosis reduces bone density and thus the strength of bone in the CT data set (shown in the figure), making it impossible to use traditional thresholding techniques to handle segmentation.
I noticed that the Morphon registration algorithm mentioned in this paper
seems to work for this case. There is a corresponding ITK implementation, but the source code it provides has a version mismatch with the current ITK.
I wonder if there is any other possible way in ITK to deal with this situation? Is DisplacementFieldTransform a viable approach? Displacement fields are also mentioned in Morphon, but I didn’t find an example of applying DisplacementFieldTransform, so I turn to you for help.