Table 4.
Quantitative evaluation of the three transformations from skin surface stimulus to its interior deformation
| Feature Preservation (R2) |
|||
|---|---|---|---|
| Variance in Interior Deformation (SSER) | Rate | Geometry | |
| Deflection-to-strain | 3.14 | 0.92 | 0.90 |
| Deflection-to-SED | 1.10 | 0.06 | 0.64 |
| Pressure-to-stress | 0.55 | 1.00 | 0.99 |
Skin-stimulus effect ratio (SSER) is used to understand how robust the surface stimulus conveys the stimulus magnitude to interior deformation, and the R2 of linear regression is used to understand how consistent the surface stimulus preserves the features of the stimulus rate and geometry to interior deformation.