US 11,701,093 B2
Ultrasound imaging device and clutter filtering method using same
Sun Yeob Chang, Seoul (KR)
Assigned to ALPINION MEDICAL SYSTEMS CO., LTD., Hwaseong-si (KR)
Appl. No. 16/646,252
Filed by ALPINION MEDICAL SYSTEMS CO., LTD., Hwaseong-si (KR)
PCT Filed Oct. 24, 2018, PCT No. PCT/KR2018/012597
§ 371(c)(1), (2) Date Mar. 11, 2020,
PCT Pub. No. WO2019/083263, PCT Pub. Date May 2, 2019.
Claims priority of application No. 10-2017-0140729 (KR), filed on Oct. 27, 2017.
Prior Publication US 2020/0275914 A1, Sep. 3, 2020
Int. Cl. A61B 8/08 (2006.01); A61B 8/06 (2006.01); G06T 5/00 (2006.01); G06T 5/20 (2006.01); G06T 7/00 (2017.01)
CPC A61B 8/5269 (2013.01) [A61B 8/06 (2013.01); A61B 8/488 (2013.01); A61B 8/5223 (2013.01); G06T 5/002 (2013.01); G06T 5/20 (2013.01); G06T 7/0012 (2013.01); G06T 2207/10132 (2013.01); G06T 2207/30104 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A clutter filtering method using an ultrasound imaging device, the method comprising:
obtaining ultrasound data from a field-of-view (FOV) of an object;
generating decomposition data including common scale information by performing rank matrix decomposition once on all of the obtained ultrasound data;
estimating local characteristic information by reflecting spatial information on each pixel to the common scale information; and
extracting a blood flow signal by performing filtering on each pixel based on the estimated local characteristic information,
wherein the common scale information is a unique value common to all pixels.