| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technique for accurately estimating distribution of acoustic wave sources by a simple method when acoustic waves cannot be detected in all directions around a living body. <P>SOLUTION: A biological information processor includes: a light source for irradiating a living body with light; a plurality of receiving elements for receiving acoustic waves generated by light absorption and outputting signals; a storage means for storing, for each of a plurality of predetermined positions, information representing signals output from the plurality of receiving elements when an acoustic wave source is assumed to exist in the position; and an estimation means for estimating the distribution of acoustic wave sources inside the living body. The estimation means assumes a distribution of acoustic wave sources, acquires signals corresponding to the positions of the respective acoustic wave sources in the assumed distribution from the information stored in the storage means, superimposes the acquired signals, and defines a distribution of the acoustic wave sources, of which the degree of coincidence between the superimposed signals and signals obtained by an actual measurement is highest, as the distribution of acoustic wave sources inside the living body. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
