[Insight-developers] Reading a volume of dim N+2 from a series of image of dim N

[Stephen R. Aylward]

You can specify this using a metaImage header.
You can create ND images out of MD (M<N) files.

Consider N=4 and M=3...

NDims = 4
DimSize = 256 256 100 5
.
.
.
DataFile = LIST 3        <--- this is M, the dims of each file
<File1.raw>
<File2.raw>
<File3.raw>
<File4.raw>
<File5.raw>

This will read in 3 3D files and create a single 4D file.

If they're uncompressed dicom, add the line
HeaderSize = -1
and it will automatically calculate the headersize for each 3D file 
(independently) and only read the pixel data which is stored at the end 
of the dicom files.


Stephen

Mathieu Malaterre wrote:
>     I have been solving a couple of issues related to ITK-gdcm, and I am 
> now stuck on the following:
> 
> http://www.itk.org/Bug/bug.php?op=show&bugid=2983
> 
>     Basically the user is asking that the ImageIO in conjunction with 
> the SeriesFileName should handle cases where the images are stored in 
> dimension N and the final images should be of dimension M (where M > N + 
> 1).
>     The actual logic does not work since the SeriesFileNames only 
> transfer a list of filename to the ImageIO, and thus the number of 
> filename is the value for the last dimension.
> 
>     What I would like to be able to do is add a notion of 'Codimension' 
> to the ImageIO and the SeriesFileName. Let say you have a 4D images 
> stored in individual 2D images. The imageIO would find out the first 2 
> dimensions od the volume, whereas the SeriesFileName would find the last 
> two dimensions of the volume (thus the notion of `codimension`).
> 
>     I think the impact on the code would be pretty small. Everything 
> should be contained in the itk::ImageSeriesReader. The contract is now 
> that each SeriesFileName should now organize everything *per* group.
> 
> 
> Suggestions welcome
> -Mathieu
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> 

-- 
=============================================================
Stephen R. Aylward, Ph.D.
Chief Medical Scientist
Kitware, Inc. - Chapel Hill Office
http://www.kitware.com
Phone: (518)371-3971 x300