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CoBrALab / optimized_antsMultivariateTemplateConstruction

A re-implementation of antsMultivariateTemplateConstruction2.sh using optimized image pyramid scale-space and qbatch support
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Investigate alternative average-transform shape update #73

Open gdevenyi opened 1 year ago

gdevenyi commented 1 year ago

The ANTs guys originally claim their "multiply by negative scaling factor" is to calculate a small-scale linear approximation of the inverse average transform.

InverseDisplacementFieldImageFilter, InvertDisplacementFieldImageFilter and IterativeInverseDisplacementFieldImageFilter

all can estimate a inverse of a displacement field transform. Can this achieve better/faster convergence?