Skip to main content
. Author manuscript; available in PMC: 2010 Jun 28.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Apr;57(4):866–882. doi: 10.1109/TUFFC.2010.1491

TABLE III.

PARAMETERS USED IN THE MULTI-LEVEL DISPLACEMENT ESTIMATION METHOD.

parameter (lateral × axial) in vivo simulations
L’3 image size (pixels) 128 × 161 128 × 429
number of L’3 windows 3 × 3 3 × 3
L’3 window size (mm2) 7.8 × 7.8 7.8 × 7.8
L’3 search region (top, mm2) 9.0 × 9.0 9.0 × 9.0
L’3 search region (middle, mm2) 10.2 × 10.2 10.2 × 10.2
L’3 search region (bottom, mm2) 11.4 × 11.4 11.4 × 11.4
L’2 image size (pixels) 128 × 322 128 × 858
number of L’2 windows 7 × 9 7 × 9
L’2 window size (mm2) 3.9 × 3.9 3.9 × 3.9
L’2 search region (mm2) 5.1 × 5.1 5.1 × 5.1
L’1 image size (pixels) 128 × 645 128 × 1717
number of L’1 windows 21 × 27 21 × 27
L’1 window size (mm2) 1.8 × 1.8 1.8 × 1.8
L’1 search region (mm2) 2.4 × 2.4 2.4 × 2.4
L’0 image size (pixels) 128 × 1319 128 × 3464
number of L’0 windows 64 × 35 64 × 47
L’0 window size (mm2) 0.9 × 0.8 0.9 × 1.0
L’0 search region (mm2) 1.5 × 0.9 1.5 × 1.1