tend-msim - Man Page
simulate DW images from an image of models
Synopsis
tend msim [-sigma <sigma>] [-seed <seed>] -g <grad list> [-b0 <b0 image>] [-i <model image>] -m <model> [-ib0 <bool>] [-b <b>] [-kvp <bool>] [-t <type>] [-o <nout>]
Description
Simulate DW images from an image of models. The output will be in the same form as the input to tend-estim(1). The B-matrices (“-B”) can be the output from tend-bmat(1), or the gradients can be given directly (“-g”); one of these is required. Note that the input tensor image (“-i”) is the basis of the output per-axis fields and image orientation. NOTE: this includes the measurement frame used in the input tensor image, which implies that the given gradients or B-matrices are already expressed in that measurement frame.
Options
- -sigma <sigma>
Gaussian/Rician noise parameter (double) default: “0.0”
- -seed <seed>
seed value for RNG which creates noise (int) default: “42”
- -g <grad list>
gradient list, one row per diffusion-weighted image
- -b0 <b0 image>
reference non-diffusion-weighted (“B0”) image, which may be needed if it isn’t part of the given model parameter image
- -m <model>
model with which to simulate DWIs, which must be specified if it is not indicated by the first axis in input model image. “string”
- -ib0 <bool>
insert a non-DW B0 image at the beginning of the experiment specification (useful if the given gradient list doesn’t already have one) and hence also insert a B0 image at the beginning of the output simulated DWIs “bool” default: “false”
- -b <b>
b value for simulated scan “double” default: “1000”
- -kvp <bool>
generate key/value pairs in the NRRD header corresponding to the input b-value and gradients. “bool” default: “true”
- -t <type>
output type of DWIs; default: “float”
- -o <nout>
output dwis (string) default: “-”
See Also
Referenced By
tend(1), tend-bmat(1), tend-estim(1).