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LANDMARK_WARP(1) Plastimatch LANDMARK_WARP(1)

NAME

landmark_warp - warp an image using point landmarks

SYNOPSIS

landmark_warp [options]

DESCRIPTION

The landmark_warp executable performs registration by matching fiducials on reference and test images. The list of possible options can be seen by typing:

landmark_warp --help


The command line usage is given as follows:

Usage: landmark_warp [options]
Options:


 -a, --algorithm <arg>         RBF warping algorithm {tps,gauss,


                                wendland}


 -d, --default-value <arg>     Value to set for pixels with unknown


                                value


     --dim <arg>               Size of output image


                                in voxels "x [y z]"


 -F, --fixed <arg>             Fixed image (match output size to this


                                image)


 -f, --fixed-landmarks <arg>   Input fixed landmarks


 -h, --help                    Display this help message


 -I, --input-image <arg>       Input image to warp


 -v, --input-vf <arg>          Input vector field (applied prior to


                                landmark warping)


 -m, --moving-landmarks <arg>


                               Output moving landmarks


 -N, --numclusters <arg>       Number of clusters of landmarks


     --origin <arg>            Location of first image voxel


                                in mm "x y z"


 -O, --output-image <arg>      Output warped image


 -L, --output-landmarks <arg>


                               Output warped landmarks


 -V, --output-vf <arg>         Output vector field


 -r, --radius <arg>            Radius of radial basis function


                                (in mm)


     --spacing <arg>           Voxel spacing in mm "x [y z]"


 -Y, --stiffness <arg>         Young modulus (default = 0.0)


Options "-a", "-r", "-Y", "-d" are set by default to:

-a=gauss          Gaussian RBFs with infinite support
-r=50.0           Gaussian width 50 mm
-Y=0.0            No regularization of vector field
-d=-1000          Air


You may want to choose different algorithm:

-a=tps            Thin-plate splines (for global registration)
-a=wendland       Wendland RBFs with compact support (for


                   local registration)


In the case of Wendland RBFs "-r" option sets the radius of support.

Regularization of vector field is available for "gauss" and "wendland" algorithms. To regularize the output vector field increase "-Y" to '0.1' and up with increment '0.1'.

AUTHOR

Plastimatch is a collaborative project. For additional documentation, please visit http://plastimatch.org. For questions, comments, and bug reports, please visit http://groups.google.com/group/plastimatch.

COPYRIGHT

Plastimatch development team (C) 2010-2015. You are free to use, modify, and distribute plastimatch according to a BSD-style license. Please see LICENSE.TXT for details.

January 8, 2019 Plastimatch 1.7.4