SUBJECT INFORMATION PROCESSING APPARATUS, SUBJECT INFORMATION PROCESSING METHOD, AND SUBJECT INFORMATION PROCESSING PROGRAM

摘要

Provided is a technology for improving accuracy of noise elimination by a wavelet transform. The present invention is a subject information processing apparatus including: an acoustic wave generator which generates an acoustic wave from a subject; a probe which receives the acoustic wave and converts the received acoustic wave into an electric signal; a converting processor which determines a wavelet coefficient string by performing the wavelet transform on the electric signal; and a threshold processor which eliminates wavelet coefficients smaller than a predetermined threshold out of the wavelet coefficient string, wherein the converting processor selects a coefficient string corresponding to a mother wavelet of which degree of similarity with an impulse response waveform of the probe is highest, out of coefficient strings corresponding to a plurality of mother wavelets stored in advance, and performs the wavelet transform.