Photoacoustic device, information processing method and program
A technology of position information and photoacoustic waves, which is applied in diagnostic signal processing, measuring devices, image data processing, etc., and can solve problems such as position deviation of multiple image data
Active Publication Date: 2021-01-19
CANON KK
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[0007] However, when a plurality of image data is generated based on photoacoustic waves generated by irradiation with light of each of a plurality of wavelengths, there may be a case where a positional deviation occurs between the plurality of image data
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[0026] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In principle, the same constituent elements are given the same reference numerals and their descriptions are omitted. The various embodiments of the present invention described below can be implemented independently, or as multiple embodiments or combinations of features thereof, where necessary or from combinations of elements or features of the various embodiments that are beneficial in a single implementation. implement.
[0027] A first exemplary embodiment will be described below. In this specification, the phenomenon that the relative position between the imaging target and the detector changes is called "positional deviation". In addition, the amount of change in the relative position between the imaging target and the detector is referred to as "positional deviation amount". Also, the amount of change in the position of the imaging target...
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A photoacoustic device, an information processing method, and a program. A photoacoustic device according to the present invention is a photoacoustic device that obtains image data based on acoustic waves generated by irradiating a subject with light of a first wavelength and light of a second wavelength different from the first wavelength, the light The acoustic device includes a processing unit configured to: obtain a first image data group corresponding to a first wavelength generated based on acoustic waves generated by irradiating the subject with light of the first wavelength multiple times, The first image data group corresponding to the wavelength is used to obtain the first positional deviation information corresponding to the irradiation timing with the light of the first wavelength, and based on the first positional deviation information, the first positional deviation information corresponding to the irradiation timing with the second wavelength of light is obtained. 2. Position deviation information.
Description
technical field [0001] The invention relates to a photoacoustic device. Background technique [0002] In the medical field, research has been conducted on imaging of functional information that is physiological information of a living body in recent years. There is photoacoustic imaging (PAI) as one of imaging techniques for functional information. [0003] In photoacoustic imaging, a subject is irradiated with light. The irradiation light propagates and diffuses through the subject, and the energy of the irradiation light is absorbed in the subject. As a result, acoustic waves (hereinafter referred to as photoacoustic waves) are generated by the photoacoustic effect. By analyzing the received signal of the photoacoustic wave, the spatial distribution of the optical property values in the subject is obtained as image data. [0004] In the case of generating image data based on photoacoustic waves generated by irradiating a subject with light a plurality of times, when ...
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IPC IPC(8): A61B5/00
CPCA61B5/0095A61B5/72A61B2576/00G01N29/0654A61B5/14542A61B5/7278A61B5/742A61B5/7475G06T5/006G06T5/50
Inventor 梅泽孝太郎七海隆一
Owner CANON KK