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

[Andriy Fedorov]

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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