X-ray computed tomography apparatus, medical image processing apparatus and medical image processing method

A medical image processing apparatus, comprising:

• a memory storing a number of photons originating from an X-ray and statistical information including a spatial count distribution of a plurality of count values with respect to spatial positions of the plurality of X-ray detection elements;
• classification circuitry configured to determine respective numbers of photons for each of a plurality of energy bins by using the stored statistical information, including the spatial count distribution;
• and
• reconstruction circuitry configured to reconstruct a respective medical image for each energy bin of the energy bins, based on the number of photons determined for each of the energy bins.

A medical image processing method, comprising:

• storing the number of photons originating from an X-ray and statistical information including a spatial count distribution of a plurality of count values with respect to spatial positions of the plurality of X-ray detection elements;
• and
• determining respective numbers of photons for each of a plurality of energy bins by using the stored statistical information, including the spatial count distribution;
• and
• reconstructing a respective medical image for each energy bin of the energy bins, based on the number of photons determined for each of the energy bins.