TABLE IV.
EXECUTION TIMES OF THE DISPLACEMENT ESTIMATION METHODS WITHOUT DOWNSAMPLING THE ANALYTIC RF DATA, RUNNING SINGLE-THREADED ON A 2.4 GHZ INTEL CORE 6600 PROCESSOR. THE POSTPROCESSING STAGE, COMMON TO ALL METHODS, INVOLVES THE COMPUTATION OF THE AXIAL STRAIN IMAGE FROM THE DISPLACEMENT FIELD.
| time (ms) | |||
|---|---|---|---|
| method | procedure | in vivo | simulations |
| hybrid | preproc. | 33 | 90 |
| L1 and L2 | 24 | 85 | |
| regression | < 0.1 | < 0.1 | |
| L3 | 24 | 60 | |
| postproc. | 10 | 16 | |
| total | 91 | 251 | |
| multi-level | preproc. | 13 | 34 |
| L’3– L’0 | 65 | 178 | |
| postproc. | 10 | 16 | |
| total | 88 | 228 | |
| multi-level WPS | preproc. | 37 | 98 |
| L’3– L’0 | 66 | 135 | |
| postproc. | 10 | 16 | |
| total | 113 | 249 | |