[MINC-users] newbee segmentation question

[Jon Erik Ween]

Thanks to Søren, Luis Claude and Simon for suggestions. I had indeed  
registered the volumes the wrong way. Inverting the transform solved  
the problem and handling integer labels cleaned the results up further.

Cheers

Jon

Soli Deo Gloria

Jon Erik Ween, MD, MS
Scientist, Kunin-Lunenfeld Applied Research Unit
Director, Stroke Clinic, Brain Health Clinic, Baycrest Centre
Assistant Professor, Dept. of Medicine, Div. of Neurology
     University of Toronto Faculty of Medicine

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Email: jween at klaru-baycrest.on.ca


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On 13-May-08, at 10:41 PM, Claude LEPAGE wrote:

> Hi,
>
>> 4) Resample labels into standard space using:
>> mincresample -like standardbrain.mnc -transform target.xfm
>> lbl.mnc    lbl_stnd.mnc
>> Reloading the transformed lbl_stnd.mnc on top of standardbrain.mnc in
>> Display and the segmentation is WAY off, not even close.
>
> In addition to the suggestion to invert the transformation,
> I would suggest to add the options -nearest_neighbour -byte
> if you are resampling integer labels. -keep_real_range may
> also be required. Otherwise, a label like 10 may be resampled
> as 10.2.
>
> Claude
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