Thin-Plate Spline Registration for Mirroring in BANC Space

A thin-plate spline (TPS) registration object that mirrors 3D points within the BANC (Buhmann et al. Adult Neural Connectome) coordinate system.

Usage

data(banc_mirror_tpsreg)

Format

An object of class tpsCoeff created using Morpho::computeTransform. It contains the following components:

Lw

Matrix of TPS coefficients

refmat

Reference matrix (source landmarks)

tarmat

Target matrix (mirrored landmarks)

lattice

3D array representing the deformation grid

lambda

Smoothing parameter used in the TPS computation

scale

Logical indicating whether scaling was used

reflection

Logical indicating whether reflection was allowed

Source

Derived from landmark correspondences between original and mirrored points in the BANC space, possibly utilizing transformations to and from the JRC2018F space for accurate mirroring.

Details

This TPS registration was computed to allow mirroring of points directly within the BANC coordinate system. It provides a smooth, interpolated transformation for any point in the BANC space to its mirrored counterpart, accounting for any asymmetries in the BANC reference brain.

See also

banc_mirror for the function that performs mirroring of points in BANC space. banc_to_jrc2018f_tpsreg for the TPS registration between BANC and JRC2018F spaces. computeTransform for details on creating tpsCoeff objects.

Examples

if (FALSE) { # \dontrun{
data(banc_mirror_tpsreg)

# Mirror BANC points using the TPS registration
banc_points <- matrix(rnorm(300), ncol=3)  # Example BANC points
mirrored_points <- Morpho::tps3d(banc_points, banc_mirror_tpsreg)
} # }