Image processing apparatus, image processing method, and image processing program

An image processing apparatus comprising:

• a generation unit that generates a tomographic image from a plurality of projection images, which have been captured by a radiation detector at each of a plurality of imaging positions with different irradiation angles, with radiation sequentially emitted from each of the plurality of imaging positions, using a reconstruction process;
• a derivation unit that derives a parameter value used in predetermined image processing which is performed on the tomographic image, on the basis of an image analysis result after image processing used in the reconstruction process is performed on at least one of the plurality of projection images;
• and
• an image processing unit that performs the predetermined image processing on the tomographic image using the parameter value.

An image processing method comprising:

• generating a tomographic image from a plurality of projection images, which have been captured by a radiation detector at each of a plurality of imaging positions with different irradiation angles, with radiation sequentially emitted from each of the plurality of imaging positions, using a reconstruction process;
• deriving a parameter value used in predetermined image processing which is performed on the tomographic image, on the basis of an image analysis result of at least one of the plurality of projection images;
• correcting the parameter value according to image processing used in the reconstruction process;
• and
• performing the predetermined image processing on the tomographic image using the corrected parameter value.

An image processing method comprising:

• generating a tomographic image from a plurality of projection images, which have been captured by a radiation detector at each of a plurality of imaging positions with different irradiation angles, with radiation sequentially emitted from each of the plurality of imaging positions, using a reconstruction process;
• deriving a parameter value used in predetermined image processing which is performed on the tomographic image, on the basis of an image analysis result after image processing used in the reconstruction process is performed on at least one of the plurality of projection images;
• and
• performing the predetermined image processing on the tomographic image using the parameter value.

A non-transitory computer-readable storage medium that stores an image processing program that causes a computer to perform:

• generating a tomographic image from a plurality of projection images, which have been captured by a radiation detector at each of a plurality of imaging positions with different irradiation angles, with radiation sequentially emitted from each of the plurality of imaging positions, using a reconstruction process;
• deriving a parameter value used in predetermined image processing which is performed on the tomographic image, on the basis of an image analysis result of at least one of the plurality of projection images;
• correcting the parameter value according to image processing used in the reconstruction process;
• and
• performing the predetermined image processing on the tomographic image using the corrected parameter value.

A non-transitory computer-readable storage medium that stores an image processing program that causes a computer to perform:

• generating a tomographic image from a plurality of projection images, which have been captured by a radiation detector at each of a plurality of imaging positions with different irradiation angles, with radiation sequentially emitted from each of the plurality of imaging positions, using a reconstruction process;
• deriving a parameter value used in predetermined image processing which is performed on the tomographic image, on the basis of an image analysis result after image processing used in the reconstruction process is performed on at least one of the plurality of projection images;
• and
• performing the predetermined image processing on the tomographic image using the parameter value.