|
|
|
|
Motion
correction
The correction is done by first
splitting up the image time series into a single volume (reference volume) with
contained volumes (source volumes). Then for each source volume the rotation
and translation parameters are estimated, in an iterative manner, with
respect to the reference volume. These parameters are saved internally so
that the user can display them at a later stage. Once the step size of the
rotation and translation parameters is small enough, the iteration process is
halted, and the estimated rotation and translation parameters are applied to
the source volume using a cubic interpolation approach. Motion correction is
implemented as a pre-processing step in the BOLD Analysis module and can also
be applied as pre-processing steps in DTI, ASL and perfusion (DCE/DSC)
analysis. Related topics
Co-registration Module
|
|
