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1. (WO2018099867) METHODS AND SYSTEMS FOR FILTERING ULTRASOUND IMAGE CLUTTER

Pub. No.:    WO/2018/099867    International Application No.:    PCT/EP2017/080551
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Tue Nov 28 00:59:59 CET 2017
IPC: G01S 7/52
G01S 15/89
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: VIGNON, Francois, Guy, Gerard, Marie
SHIN, Jun, Seob
HUANG, Sheng,Wen
ROBERT, Jean-Luc, Francois-Marie
Title: METHODS AND SYSTEMS FOR FILTERING ULTRASOUND IMAGE CLUTTER
Abstract:
A method is provided for filtering ultrasound image clutter. In the first stage of the method a data matrix is captured, wherein the data matrix contains information relating to the image, and singular value decomposition (SVD) is performed on the data matrix or a matrix derived from the data matrix. A spatial singular vector is then obtained from the SVD of the data matrix and a mean spatial frequency is estimated from them. A filtered data matrix is constructed based on the estimated mean spatial frequency and the SVD of the data matrix and a filtered image is constructed based on the filtered data matrix.