antsrMotionCalculation — antsrMotionCalculation • ANTsR

Correct time-series data for motion.

antsrMotionCalculation(
  img,
  fixed,
  mask,
  typeofTransform = c("Rigid", "QuickRigid", "BOLDRigid", "Affine", "AffineFast",
    "BOLDAffine", "SyN", "SyNOnly"),
  getMotionDescriptors = TRUE,
  verbose = FALSE,
  ...
)

Arguments

img: antsImage, usually ND where D=4.
fixed: Fixed image to register all timepoints to. If not provided, mean image is used.
mask: mask for image (ND-1). If not provided, estimated from data.
typeofTransform: One of "Affine", "Rigid", '"BOLDAffine", "BOLDRigid", "QuickRigid".
getMotionDescriptors: computes dvars and framewise displacement. May take additional memory.
verbose: enables verbose output.
...: extra parameters passed to antsRegistration

Value

List containing:

moco_img: Motion corrected time-series image.
moco_params: Data frame of translation parameters.
moco_avg_img: Average motion-corrected image.
moco_mask: Mask used to calculate framewise displacement.
fd: Time-series mean and max displacements.
dvars: DVARS, derivative of frame-wise intensity changes.

Author

BB Avants, Benjamin M. Kandel, JT Duda, Jeffrey S. Phillips