[Insight-users] Labeled region center of mass?

[Bill Lorensen]

MC,

Instead of the bounding box, it might be better to use the GetRegion()
method of LabelStatisticsImageFilter. This will save you from having to
create a region from the bounding box.

Bill

On Nov 29, 2007 5:11 PM, Mengchen Zhu <acidwind at gmail.com> wrote:

> Hi everyone,
>
> I am now trying to extract the regional centers of mass of a labeled image
> (output of ConnectedComponentImageFilter and RelabelComponentImageFilter).
> Are there any "direct" ways of doing this?
>
> My current plan is to first calculate the bounding boxes of each region
> using LabelStatisticsImageFilter; and then either manually compute the CoM,
> or "convert" the region inside the bounding box to image, and use
> ImageMomentsCalculator to calculate the CoM. I don't know how to do the
> conversion exactly for the 2nd method. The 2nd method is favored somehow
> because I might need other attributes from ImageMomentsCalculator such as
> principal axes.
>
> The context: I am currently working on registration using ICP; the
> extracted centers of mass will serve as inputs to the registration process.
>
> Your comments are welcomed. Thanks.
>
> Regards,
> MC
>
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