Object information acquiring apparatus and control method for same

An object information acquiring apparatus comprising:

• a plurality of converting elements with which an acoustic wave is transmitted to an object and the acoustic wave reflected within the object is received and converted into a plurality of received signals;
• a processor that acquires, using the plurality of received signals, a power intensity signal showing a distribution of power intensity in a plurality of positions within the object through processing using frequency domain interferometry to which adaptive signal processing is applied;
• and
• a corrector that performs correction processing on the power intensity signal,
• the processor being configured to calculate a plurality of correlation values of frequency components using the plurality of received signals, perform frequency average processing on a correlation matrix that is a set of the plurality of calculated correlation values to acquire a first power intensity signal using a plurality of values obtained by the frequency average processing, and perform processing of reducing variance of elements in a diagonal direction of the correlation matrix using the plurality of calculated correlation values to acquire a second power intensity signal using the plurality of values subjected to this processing, and
• the corrector being configured to output a power intensity signal subjected to correction processing using the first power intensity signal and the second power intensity signal.