Blood flow extraction image forming device, method of forming blood flow extraction image, and blood flow extraction image forming program

Abstract

A correlation matrix calculation unit calculates a correlation matrix Rzx for each data element of the frame data. A blood flow luminance image forming unit forms a blood flow extraction filter Pk,N on the basis of an eigenvalue λi of a rank equal to or lower than a first threshold rank, the eigenvalue being obtained by singular value decomposition on the correlation matrix Rzx, and an eigenvector wi, wiH corresponding to the eigenvalue λi and applies the blood flow extraction filter Pk,N to frame data F, therebyto forming a blood flow luminance image Uk,N. A tissue image forming unit forms a tissue image including tissue components on the basis of a signal value of each data element forming the plurality of pieces of the frame data. A blood flow extraction image forming unit subtracts the tissue image from the blood flow luminance image Uk, N, thereby forming a blood flow extraction image Uout.

CPC Classifications