Skip to main content
. Author manuscript; available in PMC: 2020 Dec 19.
Published in final edited form as: Phys Med Biol. 2019 Dec 19;64(24):245015. doi: 10.1088/1361-6560/ab5879

Figure 3:

Figure 3:

(a) singular value spectrum of a Doppler ensemble with 2322 IQ frames obtained from a breast lesion. The markers indicate the singular orders chosen for noise bias estimation (337, 700, 1000, 1300, 1500 and 2322). A singular value threshold (Th) of 336 was chosen for tissue clutter suppression, with corresponding power Doppler images without and with noise bias suppression displayed in (i, j), respectively. (b) displays the 1D noise field estimated with noise thresholds of 337-2321, 700-2321, 1000-2321, 1300-2321 and 1500-2321. Contribution from the highest singular order (2322) was rejected in (b) to show the difference. (c-h) depict B-modes derived from individual IQ frames corresponding to singular orders 1, 50, 337, 1300, 1500 and 2322, respectively.