Patent ID: 9585629
Date: 2017-03-07
CPC Classifications: A61B,G01S

Claim:
1. A subject information obtaining apparatus that obtains information inside a subject by receiving an elastic wave that has propagated from the subject, the subject information obtaining apparatus comprising: a plurality of conversion elements configured to receive the elastic wave and convert the elastic wave into a plurality of electrical signals; an envelope obtaining processor that obtains envelopes using the electrical signals subjected to a delay and sum process; a frequency-domain interferometry adaptive processor that executes a frequency-domain interferometry method and adaptive signal processing using the plurality of electrical signals and obtains a power intensity distribution by calculating a power intensity at each position on a plurality of scan lines, the scan lines extending in a depth direction of the subject; a correction processor that executes selectively, in a case the power intensity distribution obtained by the frequency-domain interferometry adaptive processor is input, a correction process on the power intensities obtained by the frequency-domain interferometry adaptive processor to obtain a post-correction power intensity distribution in which difference in power intensities between two adjacent scan lines has been reduced compared to difference in power intensities between the two adjacent scan lines before applying the correction process; and an image processor that generates image data based on the envelopes or the post-correction power intensity distribution.