Patent ID: 11893660
Assignee: HAMAMATSU PHOTONICS K.K.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An image processing apparatus for creating a tomographic image after noise removal processing based on list data collected by a radiation tomography apparatus, the apparatus comprising:
a first image creation unit configured to divide the list data into a plurality of frames in a collection order, and perform reconstruction processing for each of the plurality of frames using a data group in the list data included in the frame to create a first tomographic image of the frame;
a second image creation unit configured to perform reconstruction processing using a data group in the list data having a data amount larger than that of the data group used in creating the first tomographic image of each frame in the first image creation unit to create a second tomographic image; and
a CNN processing unit configured to generate a plurality of output tomographic images by, for each of the plurality of frames, repeatedly inputting the second tomographic image to a convolutional neural network, outputting an output tomographic image from the convolutional neural network, and training the convolutional neural network based on a comparison between the output tomographic image and the first tomographic image, wherein
the second image creation unit is configured to use, in creating the second tomographic image corresponding to the first tomographic image of each frame, a data group including the data group used in creating the first tomographic image of the frame in the first image creation unit.