PHOTOACOUSTIC IMAGE GENERATION DEVICE AND METHOD

摘要

A desired structure is selectively imaged by photoacoustic imaging. Photoacoustic signals are detected, and the detected photoacoustic signals are reconstructed to generate photoacoustic image data. A Fourier transform in a two-dimensional or higher dimensional space is applied to the photoacoustic image data to generate spatial frequency domain photoacoustic image data. Given spatial frequency components are extracted from the spatial frequency domain photoacoustic image data, and an inverse Fourier transform is applied to the extracted spatial frequency components to generate spatial frequency-processed photoacoustic image data.

主权项

1. A photoacoustic image generation device comprising:
a light source that emits light to be applied to a subject; an acoustic wave detection unit that detects photoacoustic waves emitted from the interior of the subject due to the light applied to the subject; a photoacoustic image generation unit that reconstructs photoacoustic signals to generate image data, the photoacoustic signals being detection signals of the photoacoustic waves; a Fourier transform unit that applies a Fourier transform in a two-dimensional or higher dimensional space to the image data to generate spatial frequency domain image data; a spatial frequency processing unit that extracts given spatial frequency components from the spatial frequency domain image data; and an inverse Fourier transform unit that applies an inverse Fourier transform to the extracted spatial frequency components to generate spatial frequency-processed image data wherein the spatial frequency processing unit extracts spatial frequency components of frequencies not lower than a first spatial frequency and not higher than a second spatial frequency that is higher than the first spatial frequency.