Photoacoustic apparatus, information processing method, and program

An information processing method for obtaining image data based on a first photoacoustic wave and a second photoacoustic wave in association with alternate irradiations of first pulsed light of a first wavelength and second pulsed light of a second wavelength which is different from the first wavelength, the information processing method comprising:

• obtaining a first image data and a second image data alternately and repeatedly so as to obtain a plurality of the first image data and a plurality of the second image data in association with the alternate light irradiations with each one the first pulsed light and the second pulsed light;
• obtaining first positional deviation information in association with a relative position of the object with respect to the receiving unit in a plurality of first irradiation timings of the first pulsed light on the basis of at least two temporally proximal first image data out of the plurality of the first image data;
• and
• obtaining second positional deviation information in association with a relative position of the object with respect to the receiving unit in a plurality of second irradiation timings of the second pulsed light by temporal or spatial interpolating the first positional deviation information,
• wherein the obtaining the first positional deviation information is to be performed without using the second positional deviation information.

A non-transitory storage medium storing a program for causing a computer to execute the information processing method for obtaining image data based on a first photoacoustic wave and a second photoacoustic waves in association with alternate irradiations with first pulsed light of a first wavelength and light and second pulsed light of a second wavelength which is different from the first wavelength, the information processing method comprising:

• obtaining a first image data and second image data alternately and repeatedly so as to obtain a plurality of the first image data and a plurality of the second image data in association with the alternate light irradiations with each one of the first pulsed light and the second pulsed;
• obtaining first positional deviation information in association with a relative position of the object with respect to the receiving unit in a plurality of first irradiation timings of the first pulsed light on the basis of at least two temporally proximal first image data out of the first plurality of the first image data;
• and
• obtaining second positional deviation information in association with a relative position of the object with respect to the receiving unit in a plurality of second irradiation timings of the second pulsed light by temporal or spatial interpolating the first positional deviation information,
• wherein the obtaining the first positional deviation information is to be performed without using the second positional deviation information.