Table 6
Comparison of the correlation coefficients of different sub-bands of the power spectrums between of original high-resolution data and the super-resolution ones of different methods.
| Correlation | Low frequency band | Medium frequency band | High frequency band |
|---|---|---|---|
| LLE | 0.9995 | 0.9541 | 0.9343 |
| Interpolation | 0.9994 | 0.9909 | 0.9288 |
| Sparse representation | 0.9344 | 0.7139 | 0.7149 |
| SRCNN | 0.6969 | 0.2886 | 0.2315 |