[Insight-users] Fast marching to calculate distance map

[Kevin H. Hobbs]

On 12/29/2009 03:10 PM, siqi chen wrote:
> Hi, ITKers,
> 
> I have a simple question regarding how to use FastMarchingImageFilter to
> calculate distance map.
> 
> If I have a pointset P with integer coordinates, and I want to calculate a
> distance map to P. What should I pass to FastMarchingImageFilter?
> 
> What I did is:
> 1. pass P to AlivePoints with value 0.0,
> 2. pass all the 4 neighbors of P to TrialPoints with value 1.0
> 3. set the speedconstant to 1.0
> 4. set the outputregion, size, origin, ....
> 
> Am I missing something?
> 

1. pass P to TrialPoints with value 0.0
2. set the speedconstant to 1.0
3. set the outputregion, size, origin, ....

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