Table 4 Comparison of the results for the Butterworth filter, signal inversion and the proposed median filter processing methods using the elastography phantom
From: Image reconstruction utilizing median filtering applied to elastography
Type of material | Error for Butterworth filter method (%) | Error for signal inversion method (%) | Error for the proposed median filter (%) |
|---|---|---|---|
Phantom base | 16.9 | 16.8 | 16.7 |
I | 35.2 | 31.4 | 28.2 |
II | 12.5 | 12.2 | 11.7 |
III | 4.2 | 3.3 | 1.8 |
IV | 9.8 | 8.3 | 6.5 |