Table 3 A qualitative comparison of the three data reduction methods discussed in this paper.
Method/Properties | Data dependent | Time-Frequency Parametrization | Computation time | Variance versus Covariance |
|---|---|---|---|---|
PCA | Yes | No | 3.2 sec | Covariance |
PCA-Gabor | Yes | Yes | 11.6 sec | Covariance |
SMP-Gabor | No | Yes | 1276 sec | Variance |