3d curvature computations. For each surface voxel, a curvature feature is computed. Surface voxels are defined by a threshold. The algorithm is based on discrete approximations to second-order derivatives and the Weingarten equations.
Reference:
O. Monga, S. Benayoun (1995). "Using partial derivatives of 3D images to extract typical surface features", Computer Vision and Image Understanding, Vol.61, No.2, pp.171--189.
Usage
vcurvature
Parameters:
-in
input image
-out
output image
-t
iso-value. Default: 0.5
-ctype
type of output (class | mean | gauss). Default: class