An image processing device 20 comprises an image reconstruction unit 21, an image conversion unit 22, a CNN processing unit 23, and an attenuation correction unit 24. The image conversion unit 22 generates converted images in which the pixel value of a partial region has been changed on the basis of tomographic images for respective slice positions of a subject. In the CNN processing unit 23, the converted images for the slice positions generated by the image conversion unit 22 are inputted to a CNN 31, and slice position information of the converted images is inputted to an embedding layer 32. Output data from the embedding layer 32 is added to a feature map of the CNN 31. The CNN processing unit 23 outputs output images from the CNN 31 as attenuation distribution images for the subject. Thus, even when a medicine administered to a subject when acquiring tomographic images of an attenuation correction target is different from a medicine administered to the subject when acquiring tomographic images for CNN learning, a device capable of creating more accurate attenuation distribution images from the tomographic images of the attenuation correction target is realized.
- 출원번호 : JP2024/030320
- 출원인 : HAMAMATSU PHOTONICS K.K.
- 특허번호 :
- IPC : G01T-001/161(2006.01);A61B-006/03(2006.01);
