[Insight-users] How to show a segment as an overlay?

[Kishore Mosaliganti]

ITKSnap application does that as well.

Kishore

On Mon, Oct 12, 2009 at 12:09 PM, Andriy Fedorov
<fedorov at bwh.harvard.edu> wrote:
> Michel,
>
> Unless you want to stick to ImageViewer, there are quite a few other
> integrated GUI environments for visualization and processing of
> medical images you might want to consider.
>
> 3D Slicer, http://slicer.org, is one such tool, which will allow you
> to load CT volume and the corresponding segmentation, and display them
> in overlay mode.The advantage is that you don't need to post-process
> your data to create the overlay, and it's very easy to give it a try.
>
> Hope this helps
>
> Andriy Fedorov
>
>
>
>
> On Mon, Oct 12, 2009 at 12:00,  <insight-users-request at itk.org> wrote:
>> Date: Mon, 12 Oct 2009 11:47:11 -0400
>> From: Kishore Mosaliganti <kishoreraom at gmail.com>
>> Subject: Re: [Insight-users] How to show a segment as an overlay?
>> To: Michael Xanadu <xanadu.michael at googlemail.com>
>> Cc: insight-users at itk.org
>> Message-ID:
>>        <cd51098d0910120847k256733f4w411949762b4c6365 at mail.gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1
>>
>> Hi Michael,
>>
>> The itkLabelOverlayImageFilter overlays your binary segmentation
>> region over the scalar image and can output an RGB image with
>> user-specified opacity. This can go into the vtkImageViewer.
>>
>> Kishore
>>
>> On Mon, Oct 12, 2009 at 9:42 AM, Michael Xanadu
>> <xanadu.michael at googlemail.com> wrote:
>>> Hello guys,
>>>
>>> lets say i have a CT image of a liver or something and ITK delivers a binary
>>> image which shows the liver as a segment (black/white segmentation map). I
>>> can access the binary image pixel-wise and know which coordinates belong to
>>> the segment.
>>> Now I want to show the segment in the original image data in some way (i use
>>> vtkImageViewer). For example I want to draw the segment as an overlay to
>>> vtkImageViewer. You know what I mean?
>>> I think I can trace the binary image pixel-wise and show each pixel which
>>> belongs to the segment as the overlay. For this I wanted to use a widget,
>>> but there is no special widget class in itk for "drawing" a number of single
>>> coordinates.
>>> The next idea i had was to use vtkLineSource and to draw the segment as
>>> polydata of lines, but that also seems to be weird. Are there already some
>>> good solutions (special classes etc.)? Or can anybody tell me a whole new
>>> approach for showing segments as an overlay?
>>>
>>> Regards, Michael
>>>
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