A method of decomposing scintigraphic images into total and scattered absorption components.

摘要

P A method of decomposition into a so-called total absorption component (f1) and a so-called diffused component {fk} of spectra {ti} of energy for N elements i of a scintigraphic image. BR/ According to the invention, said decomposition method comprises the steps of: BR/ a) sampling the energy in P samples j, BR/ b) recording the values ti (j) of each spectrum {ti}, BR/ c) construct the array Y of ti (j), BR/ d) determine the basis of eigenvectors {vq} (q = 0, 1, 2 .., P-1) orthogonal values of the matrix Y, ranked in order of decreasing eigenvalues, BR/ e) determine K fundamental spectra {fk} in the space generated by the Q (Q = P) first eigenvectors {vq} by applying appropriate constraints to the coefficients bk q defined by: BR/ (CF DRAWING IN BOPI) BR/ BR/ f) projecting the spectra {ti} of pixels on the basis of the fundamental spectra {fk} to obtain the desired decomposition: BR/ (CF DRAWING IN BOPI) BR/ / P