i want to match two 3D-medical-image-dataset with different resolution. To obtain the same resolution i have to interpolate the dataset with the lower resolution. One way to interpolate is the tri-linear interpolation.
What is the best (fastes) way to do this ?
I am confused about the way to implement such an algorithm ?
One way is to set up 8 equations (F(x,y,z) = a + b*x + c*y + d*z + e*xy + f*xz + g*yz + h*xyz) with the value of the 8 neighbouring voxels and to solve this equation-system with gaussian elimination.
Or is it possible to perform the 3D-interpolation by convolution (Fourier Transformation).
Does anyone know some papers or www-pages about the theme 3D-interpolation.
If so please send an email to me. Christian.
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