Table 1 Functions to approximate PSF shape parameters
From: Signal processing in urodynamics: towards high definition urethral pressure profilometry
PSF shape parameter | Depends on model parameters | Approximation |
|---|---|---|
\(a_1\) | D | Polynomial (degree 1) |
\(a_2\) | D, \(\nu\) | Bilinear interpolation |
\(a_3\) | D, \(\nu\) | Bilinear interpolation |
\(a_4\) | D | Cubic interpolation |
\(\alpha\) | D | Polynomial (degree 4) |
\(\beta\) | D, \(\nu\) | Rational polynomial along D (degree 2/2), linear interpolation along \(\nu\) |