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We are talking about Non-uniform rational B-spline. We have some simple 3 dimensional array like

{1,1,1}
{1,2,3}
{1,3,3}
{2,4,5}
{2,5,6}
{4,4,4}

Which are points from a plane created by some B-spline

How to find control points of spline that created that plane? (I know its a hard task because of weights that need to be calculated but I really hope it is solvable)

alt text

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I really do not know tag system on math.stackexchange so feel free to edit tags. –  Kabumbus Dec 14 '10 at 12:15
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1 Answer 1

I saw a paper on Object contour extraction using adaptive NURBS VFC active contour: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=5970569&contentType=Conference+Publications

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Welcome to MSE! I realize you don't yet have enough reputation, but this is better as a comment. It can certainly be improved by adding more specific details to answer the OP. Reagrds. –  Amzoti May 4 '13 at 5:37
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