AmbergDeformSpam: Deform triangular mesh based on correspondences

In zarquon42b/mesheR: Meshing Operations on Triangular Meshes

Deform triangular mesh based on correspondences

Description

Perform smooth deformation of a triangular mesh, minimizing per-face distortions.

Usage

AmbergDeformSpam(
  mesh,
  lm1,
  lm2,
  k0 = 1,
  lambda = 1,
  S = NULL,
  Hchol = NULL,
  clean = FALSE,
  ridgetol = 1e-08
)

Arguments

mesh	triangular mesh of class "mesh3d". No loose vertices, edges and degenerated faces are allowed.
lm1	m x 3 matrix containing correspondences on "mesh"
lm2	m x 3 matrix containing target correspondences
k0	integer: parameter regularizing face normal distortion.
lambda	numeric: parameter regularizing faces's distortion.
S	optional: object from function createS from previous calculation.
Hchol	Cholesky decomposition of Hessian (obtained by a previous run of AmbergDeformSpam), speeds up things significantly.
clean	logical: if TRUE, vcgClean from package Rvcg is run to remove duplicated and unreferenced vertices from the mesh and preventing segfaults.
ridgetol	in case of a singular matrix, this value will be added to the diagonal (similar to a ridge regression) to avoid singularity.

Details

Perform smooth deformation of a triangular mesh, minimizing per-face distortions.No loose vertices, edges and degenerated faces are allowed, as they lead to singular equation system.

Value

mesh	deformed mesh
Jn	Jacobi submatrix Jn
Jc	Jacobi submatrix Jc
J	Jacobian matrix
H	Hessian of J, class "spam"
Hchol	Cholesky decomposition of H; class"spam"

Author(s)

Stefan Schlager

References

Amberg, B. 2011. Editing faces in videos, University of Basel.

See Also

gaussMatch

zarquon42b/mesheR documentation built on Jan. 28, 2024, 2:17 p.m.