[STORY] generate population template of anatomical images

[arkiev]

Metadata

Epic: #17
Feature: #79
Feature Release:
Required knowledge: shallow

Description

As a researcher, I want to move T1-weighted anatomical images from subject space to a common template space (and generate a population template image), to assist with making comparisons in a longitudinal context (i.e, to visually demonstrate ventricle size changes over time), or in the context of a multi-site experiment (i.e., to compare acquisitions of a travelling-head)

Notes

This can be achieved by implementing the mrtrix3 command population_template in Pydra.

Acceptance Criteria

Given a list of T1-weighted anatomical images, when this processes is executed, the following set of outputs are generated:

• anatomical brainmask in subject space (if not provided, this will be generated and used as an input to population_template
• group-averaged T1-weighted image (i.e., the population template)
• T1-weighted images in population-template space
• anatomical brainmask in population-template space
• transformation file (or warp image) to move other images between subject and template space