[Insight-users] LabelDiameter

[Pietro Nardelli]

That's great!

Thank you Nicholas

2012/5/29 Nicholas Tustison <ntustison at gmail.com>:
> Or you could use Maurer which is much faster.
>
> http://www.itk.org/Doxygen/html/classitk_1_1SignedMaurerDistanceMapImageFilter.html
>
> On May 29, 2012, at 10:01 AM, Pietro Nardelli wrote:
>
>> Hi again Luis,
>>
>> thank you, this suggestion seems perfect! I'll try ti use it: if I got
>> it right, to compute a signed distance map I have to use the
>> SignedDanielssonDistanceMapImageFilter. Am I correct?
>>
>> Thanks a lot,
>>
>> Pietro
>>
>> 2012/5/28 Luis Ibanez <luis.ibanez at kitware.com>:
>>> Hi Pietro,
>>>
>>> The following suggestion will not prevent your airways
>>> label segmentation from having bigger diameters in
>>> the lower branches, but it should help you detect
>>> if it happens.
>>>
>>> Take the label image, compute a signed distance map
>>> from it, and then use the Minimum / Maximum image
>>> filter to detect local extrema.
>>>
>>> If the diameters were monotonically decreasing,
>>> you shouldn't find any extrema in the distance map
>>> (at least in theory.... the discretionary may artificially
>>> create some though...).
>>>
>>>
>>>     Luis
>>>
>>>
>>> -------------------------------------------------------------
>>> On Mon, May 28, 2012 at 11:12 AM, Pietro Nardelli <pie.nardelli at gmail.com>
>>> wrote:
>>>>
>>>> Hi all,
>>>>
>>>> I have a question: does exist a function to compute the diameter of a
>>>> volume label? I'm segmenting the airway of the lung and I need to be
>>>> sure that the label's diameter of the deepest branches isn't greater
>>>> than the diameter of the higher ones.
>>>>
>>>> Thank you very much,
>>>>
>>>> Pietro
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>