ANTsR (version 0.7.2.0)

antsrMotionCalculation: antsrMotionCalculation

Description

Correct time-series data for motion.

Usage

antsrMotionCalculation(img, fixed, mask, typeofTransform = "Rigid",
  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.

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.

Examples

# NOT RUN {
set.seed(120)
simimg<-makeImage(rep(5,4), rnorm(5^4))
antsrMotionCalculation( simimg )
# }