US 11,054,401 B2
Method for processing signals coming from an acquisition by ultrasound probing, corresponding computer program and ultrasound probing device
Eduardo-Rigoberto Lopez Villaverde, Massy (FR); Sebastien Robert, Le Kremlin-Bicetre (FR); and Claire Prada Julia, Paris (FR)
Assigned to Commissariat a l'energie atomique et aux energies alternatives, Paris (FR); and Centre National de la Recherche Scientifique, Paris (FR)
Appl. No. 16/469,918
Filed by Commissariat a l'energie atomique et aux energies alternatives, Paris (FR); and Centre National de la Recherche Scientifique, Paris (FR)
PCT Filed Dec. 5, 2017, PCT No. PCT/FR2017/053391
§ 371(c)(1), (2) Date Jun. 14, 2019,
PCT Pub. No. WO2018/109314, PCT Pub. Date Jun. 21, 2018.
Claims priority of application No. 16 62525 (FR), filed on Dec. 15, 2016.
Prior Publication US 2019/0317054 A1, Oct. 17, 2019
Int. Cl. G06K 9/00 (2006.01); G01N 29/44 (2006.01); A61B 8/14 (2006.01); A61B 8/08 (2006.01); A61B 8/00 (2006.01); G01N 29/04 (2006.01); G01N 29/06 (2006.01); G01N 29/07 (2006.01); G01N 29/46 (2006.01); G01N 29/48 (2006.01); G06T 7/00 (2017.01)
CPC G01N 29/4463 (2013.01) [A61B 8/14 (2013.01); A61B 8/5269 (2013.01); A61B 8/54 (2013.01); G01N 29/043 (2013.01); G01N 29/069 (2013.01); G01N 29/07 (2013.01); G01N 29/46 (2013.01); G01N 29/48 (2013.01); G06T 7/0012 (2013.01); G01N 2291/106 (2013.01); G06T 2207/10132 (2013.01); G06T 2207/20056 (2013.01); G06T 2207/30004 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for processing signals (S) coming from an acquisition by ultrasound probing comprising the following steps:
controlling L emission transducers for M successive emissions of plane ultrasound waves having M different successive angles of emission (θ1, . . . , θM) in M emission zones (ZE1, . . . , ZEM),
controlling N reception transducers in such a way as to simultaneously receive, over a predetermined time, for each emission, N measurement time signals measuring echoes caused by reflections of the each emission,
obtaining a matrix [MR(t)] of ultrasound time signals having a size of N×M, each coefficient MRi,j(t) of this matrix representing the measurement signal received by the i-th reception transducer caused by the j-th emission,
transforming the matrix [MR(t)] of time signals into a matrix [FTMR(f)] of frequency signals,
performing singular-value decomposition of the matrix [FTMR(f)] of frequency signals,
eliminating a portion of the singular values and associated singular vectors resulting from said singular-value decomposition, and
reconstructing a denoised matrix [MRU(t)] of time signals on the basis of the singular values and singular vectors not eliminated.