Motion correction with extra parameters

The CorrectMotionEx(Target volume, Interpolation method, Full data set, Max nr of iterations, movies, log) function accepts the following parameters:

 

Target volume:

Defines the number of the volume to which the other volumes should be aligned

Possible values: between 1 and number of volumes in run

 

 

Interpolation method:

Defines how precisely the new intensity values are computed after motion correction

Possible values: 0/1 (trilinear-trilinear interpolation), 2 (trilinear-sinc) or 3 (sinc-sinc). The first type in each pair indicates the interpolation method for search, the second for transformation. See also Interpolation in motion correction.

 

 

Full data set:

This option is the inverse of the 'Reduced data set' checkbox of the '3D motion correction' section of the 2D/3D FMR Data Preprocessing dialog in BrainVoyager QX.

Possible values: true (useful data set) or false (use reduced data set).

 

 

 

Maximum number of iterations:

Defines for how many iterations the parameters should be fitted.

 

 

 

Create movies:

Indicates whether *.avi movies should be created or not.

Possible values: true (create movies) or false (no movies).

Note: function is not activated yet.

 

 

 

Create extended log file:

Saves a log file with values of the Levenberg-Marquardt algorithm parameters during fitting.

Possible values: true (create log file) or false (no log file).

 

 

 

There is also a possibility to include intrasession alignment with motion correction. This is described in the topic Intrasession alignment.