Patent ID: 11911175
Assignee: ECHOLIGHT S.P.A.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 9:
10. The apparatus (100) according to claim 9, wherein said computer (24) for computing said reference spectra is also configured to:
for each of said single spectra, calculating Pearson's correlation coefficient, between said single spectrum and said average spectrum of all said single spectra;
selecting each of said single spectra for which the correlation coefficient with the said average spectrum of all said single spectra is larger than the reference value r>0.900;
calculating a further average spectrum of selected single spectra that have a correlation coefficient higher than r>0.900;
for each single spectrum calculating a further Pearson's correlation coefficient with said further average spectrum;
among all said single spectra, selecting spectra having a correlation coefficient with the said further average spectrum that is in turn higher than r>0.900;
calculating a further average spectrum of the selected further average spectra;
repeat computing said new correlation coefficient, selecting said single spectra and computing said further correlation coefficients until a final average spectrum is obtained such that:
each single spectrum selected to compute said final
average spectrum has a correlation coefficient with said final average spectrum higher than r>0.900;
each other spectra not selected to compute said final average spectrum has a correlation coefficient with said final average spectrum lower than or equal to r<0.900.