[Insight-users] Is there a limit for the number of Landmarks -Pairs for Thin Plate Spline Transform ?

[Siwei Yang]

Hi every body,
when I 'was using itk::ThinPlateSplineKernelTransform(actually include 
all the classes inherited from itk::KernelTransform), I found ,that 
there might be  an upper limit for the number of landmark-pairs. This 
limit is about 150-200 pairs. Sorry , that I can 't say exactly, how much.
If I exceed this limt, for example 300, then I will get huge amount of 
standard outputs, which almost floods my screen, just like 
............................................................
        0 52.00000        0 53.00000        0 53.00000        0 
54.00000        0 55.00000        0 55.00000        0 56.00000        0 
56.00000        0 57.00000        0 57.00000        0 58.00000        0 
58.00000        0 59.00000        0 59.00000        0 60.00000        0 
60.00000        0 61.00000        0 61.00000        0 61.00000        0 
62.00000        0 63.00000        0 64.00000        0 64.00000        0 
64.00000        0 65.00000        0 66.00000        0 66.00000        0 
67.00000        0 68.00000        0 69.00000        0 70.00000        0 
70.00000        0 71.00000        0 72.00000        0 73.00000        0 
73.00000        0 74.00000        0 75.00000        0 76.00000        0 
77.00000        0 77.00000        0 78.00000        0 79.00000        0 
81.00000        0 82.00000        0 83.00000        0 83.00000        0 
84.00000        0 85.00000        0 87.00000        0 88.00000        0 
89.00000        0 90.00000        0 91.00000        0 92.00000        0 
93.00000        0 94.00000        0 95.00000        0 96.00000        0 
98.00000        0 99.00000        0 100.00000        0 101.00000        
0 102.00000        0 1.00000        0  1.00000        0  1.00000        
0  1.00000        0  1.00000        0 
.................................................................
.....................................................................................................................................................................................................................................................................................................................................
and I don't know , where they come from. Finally I 'll obtain a wrong 
interpolation.
Because my application uses usually more than 3000 pairs landmarks (3D), 
it would be ideal, if this could be allowed.
Did anyone have this problem? How can I do ?


Thank you very much
best wishes

Siwei