Medical information processing apparatus, medical information processing method, and storage medium

A medical information processing apparatus comprising:

• processing circuitry configured to
• acquire a plurality of images of a test object based on a plurality of magnetic resonance signals collected from the test object by a plurality of reception coils, respectively,
• composite the plurality of images to generate a composite image,
• estimate a noise strength distribution included in the generated composite image,
• generate a uniformization distribution for uniformizing the noise strength distribution,
• add a signal represented by the uniformization distribution to the composite image to uniformize the noise strength distribution,
• remove a noise from the composite image having the uniformized noise strength distribution, and
• output the composite image.

A medical information processing method for a computer, comprising:

• acquiring a plurality of images of a test object based on a plurality of magnetic resonance signals collected from the test object by a plurality of reception coils, respectively;
• deriving a plurality of index values with respect to a plurality of noises included in the plurality of images, respectively;
• adjusting, based on the plurality of index values, a plurality of degrees to which the plurality of noises are removed from the plurality of images, respectively;
• removing, based on the plurality of degrees adjusted, the plurality of noises from the plurality of images, respectively;
• compositing the plurality of images from which the plurality of noises have been removed, respectively, to generate a composite image;
• and
• outputting the composite image.

A medical information processing method for a computer, comprising:

• acquiring a plurality of images of a test object based on a plurality of magnetic resonance signals collected from the test object by a plurality of reception coils, respectively;
• compositing the plurality of images to generate a composite image;
• estimating a noise strength distribution included in the composite image;
• generating a uniformization distribution for uniformizing the noise strength distribution;
• adding a signal represented by the uniformization distribution to the composite image to uniformize the noise strength distribution;
• removing a noise from the composite image having the uniformized noise strength distribution;
• and
• outputting the composite image.

A computer-readable non-transitory storage medium storing a program causing a computer to:

• acquire a plurality of images of a test object based on a plurality of magnetic resonance signals collected from the test object by a plurality of reception coils, respectively;
• derive a plurality of index values with respect to a plurality of noises included in the plurality of images, respectively;
• adjust, based on the plurality of index values, a plurality of degrees to which the plurality of noises are removed from the plurality of images, respectively;
• remove, based on the plurality of degrees adjusted, the plurality of noises from the plurality of images, respectively;
• composite the plurality of images from which the plurality of noises has been removed, respectively, to generate a composite image;
• and
• outputting the composite image.

A computer-readable non-transitory storage medium storing a program causing a computer to:

• acquire a plurality of images of a test object based on a plurality of magnetic resonance signals collected from the test object by a plurality of reception coils, respectively;
• composite the plurality of images to generate a composite image;
• estimate a noise strength distribution included in the composite image;
• generate a uniformization distribution for uniformizing the noise strength distribution;
• add a signal represented by the uniformization distribution to the composite image to uniformize the noise strength distribution;
• remove a noise from the composite image having the uniformized noise strength distribution;
• and
• output the composite image.