03. Grid deformation

This is an internal component, see Disco pipeline for general information.

Description

This step converts the DISCO deformation estimated in 02. Template building into forward and inverse deformation fields. This is done in applying the deformation to a regular grid whose step size can be controlled with the approx parameter.

Parameters

study_dir: DISCO Study Dir ( input )

subjects_hierarchy: Save Subjects Hierarchy DISCO ( input )

grid_init: ListOf( Grid Init DISCO ) ( output )

approx: Integer ( input )

Step size of the grid, in millimetres. Decreasing this value can improve the precision of the deformation fields, at the cost of increased processing time.

associated_t1mri_nobias: ListOf( T1 MRI Bias Corrected ) ( input )

graph_Talairach_transform: ListOf( Transform Graph to Talairach-AC/PC-Anatomist ) ( input )

grid_deformed: ListOf( Grid Deformed DISCO ) ( output )

grid_invdeformed: ListOf( Grid Inv Deformed DISCO ) ( output )

displacement_field: ListOf( FFD Field defData DISCO ) ( output )

inv_displacement_field: ListOf( FFD Field defData Inversed DISCO ) ( output )

Technical information

Toolbox : Disco

User level : 1

Identifier : gridDeform

File name : brainvisa/toolboxes/disco/processes/DISCO_components/gridDeform.py

Supported file formats :

study_dir :

Directory, Directory

subjects_hierarchy :

Text file, Text file

grid_init :

MESH mesh, MESH mesh

associated_t1mri_nobias :

NIFTI-1 image, NIFTI-1 image

graph_Talairach_transform :

Transformation matrix, Transformation matrix

grid_deformed :

MESH mesh, MESH mesh

grid_invdeformed :

MESH mesh, MESH mesh

displacement_field :

GIS image, GIS image

inv_displacement_field :

GIS image, GIS image