ANTSAI(1) User Commands ANTSAI(1)
NAME
antsAI - part of ANTS registration suite
DESCRIPTION
COMMAND:
antsAI
Program to calculate the optimallinear transform parameters for aligning two
images.
OPTIONS:
-d, --dimensionality 2/3
This option forces the image to be treated as a specified-dimensional image. If not
specified, we try to infer the dimensionality from the input image.
-m, --metric MI[fixedImage,movingImage,<numberOfBins=32>,<samplingStrategy={None,Regu‐
lar,Random}>,<samplingPercentage=[0,1]>]
Mattes[fixedImage,movingImage,<numberOfBins=32>,<samplingStrategy={None,Regu‐
lar,Random}>,<samplingPercentage=[0,1]>] GC[fixedImage,movingIm‐
age,<radius=NA>,<samplingStrategy={None,Regular,Random}>,<samplingPercent‐
age=[0,1]>]
These image metrics are available: MI: joint histogram and Mattes: mutual informa‐
tion and GC: global correlation.
-t, --transform Rigid[gradientStep]
Affine[gradientStep] Similarity[gradientStep]
Several transform options are available. The gradientStep or learningRate charac‐
terizes the gradient descent optimization and is scaled appropriately for each
transform using the shift scales estimator.
-p, --align-principal-axes
Boolean indicating alignment by principal axes. Alternatively, one can align using
blobs (see -b option).
-b, --align-blobs numberOfBlobsToExtract
[numberOfBlobsToExtract,<numberOfBlobsToMatch=numberOfBlobsToExtract>]
Boolean indicating alignment by a set of blobs. Alternatively, one can align using
blobs (see -p option).
-s, --search-factor searchFactor
[searchFactor,<arcFraction=1.0>]
Incremental search factor (in degrees) which will sample the arc fraction around
the principal axis or default axis.
-c, --convergence numberOfIterations
[numberOfIterations,<convergenceThreshold=1e-6>,<convergenceWindowSize=10>]
Number of iterations.
-x, --masks fixedImageMask
[fixedImageMask,movingImageMask]
Image masks to limit voxels considered by the metric.
-o, --output outputFileName
Specify the output transform (output format an ITK .mat file).
-v, --verbose (0)/1
Verbose output.
-h
Print the help menu (short version).
--help
Print the help menu. <VALUES>: 1
antsAI 2.2.0 August 2017 ANTSAI(1)