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4D joint bilateral (permutohedral backend; 'grid' alias supported)

fast_bilateral_joint4d.Rd

Joint bilateral filter across space and time using a lattice backend.

Usage

fast_bilateral_joint4d(
  vec,
  guide_spatial,
  sigma_s,
  sigma_t,
  sigma_r,
  range_bins = NULL,
  passes = 1L,
  mask = NULL,
  interp_guide = 1L,
  interp_mask = 0L,
  backend = c("grid", "permutohedral"),
  design = NULL,
  sigma_d = 1,
  guides = NULL
)

Arguments

vec

4D array or `NeuroVec`.

guide_spatial

3D spatial guide.

sigma_s

Spatial sigma (voxels).

sigma_t

Temporal sigma (frames).

sigma_r

Range sigma for guide intensity.

range_bins

Unused placeholder for grid backend compatibility.

passes

Integer number of lattice blur passes.

mask

Optional 3D mask.

interp_guide

Guide interpolation mode for resampling.

interp_mask

Mask interpolation mode for resampling.

backend

One of 'grid' or 'permutohedral'.

design

Optional length-T design regressor to add as lattice feature.

sigma_d

Sigma for the design feature.

guides

Optional list of additional 3D guides.

Value

Smoothed 4D data, wrapped like `vec` when possible.