create_mosaic.m 1.0

Conceived for functional Magnetic Resonance Imaging, create_mosaic may also be useful for DWI or other applications which create image time-series Most fMRI programs use 4D matrices (x,y,z,t) in NIfTI format. It can be useful to reduce the number of dimension from 4 to 3 by tiling all slices (z) into a "mosaic" image for each time point (t). Scrolling through the 3rd dimension in the mosaic (e.g. in mricro http://www.cabiatl.com/mricro/mricro/index.html) allows the time course of each slice to be visualised. Useful for assessing motion and artefacts in fMRI time series. Can also be used to create a 2D mosaic of all the slices in a 3D volume, e.g. for structural imaging In the example below, 4D EPI times-series in NIfTI format (all called 'Image.nii') are stored in the directories '5','6','8' in the directory specified by root_dir create_mosaic writes a 3D mosaic file for each, in NIfTI format, in the directory results_dir, with file names Mosaic_5.nii, etc Simon Robinson. 2/May/2011. simon.robinson@meduniwien.ac.at version_number = 1.0; Credit: includes many functions from Jimmy Shen's excellent NIfTI toolbox (file exchange # 8797)

Requirements:	No special requirements
Platforms:	Matlab
Keyword:	Called,  Directories,  Directory,  Imagenii,  Root Dir,  Stored,  Timesseries,  Volume
Users rating:	0/10