公开(公告)号：US20190022791A1

公开(公告)日：2019-01-24

申请号：US16008840

申请日：2018-06-14

申请人： C.R.F. Società Consortile per Azioni

发明人： Giuseppe D'ANGELO ,  Gianmarco GENCHI ,  Alessandro CISI ,  Giorgio PASQUETTAZ

IPC分类号： B23K26/03 ,  G01N21/88 ,  G01N21/27 ,  G01J3/28 ,  B23K31/12 ,  A61B5/0402 ,  A61B5/0488 ,  A61B5/00 ,  G06F17/16

摘要： A method for performing a noise removal operation includes decomposing an acquired signal considered as one dimensional series. A trajectory matrix is constructed, transforming the trajectory matrix in a form to which single value decomposition is applicable. A single value decomposition is done on the transformed matrix computing eigenvalues and eigenvectors of the matrix. A one dimensional series is reconstructed, corresponding to the denoised signal. After the single value decomposition operation is provided, a single value decomposition is applied sequentially starting from a given window value. For each iteration, the root mean square value is calculated between a current and previous eigenvalue, calculating a minimum and its position of said root mean square value. The iterations are halted if the minimum is lower than a determined threshold value, otherwise increasing the window value and returning to the operation of decomposition of the acquired signal.