Image processing apparatus, image processing system, image processing method, and storage medium

An image processing method comprising the steps of:

• acquiring, for each of a plurality of positions in a target image, an estimated value of an error in registration between a plurality of three-dimensional images, wherein the target image is one of the plurality of three-dimensional images and a registered three-dimensional image acquired by the registration;
• designating a target cross section in one of the plurality of three-dimensional images and the registered three-dimensional image;
• specifying, as a region of interest, a region contained in the target image, wherein the region of interest is a three-dimensional region;
• acquiring an intersection region that is a region where the target cross section and the region of interest cross each other;
• calculating a statistical value of the estimated values in the intersection region, using the estimated values at a plurality of positions in the intersection region;
• and
• displaying the statistical value on a display unit.

A non-transitory computer-readable storage medium for causing a computer to execute:

• processing to acquire, for each of a plurality of positions in a target image, an estimated value of an error in registration between a plurality of three-dimensional images, wherein the target image is one of the plurality of three-dimensional images and a registered three-dimensional image acquired by the registration;
• processing to designate a target cross section in one of the plurality of three-dimensional images and the registered three-dimensional image;
• processing to specify, as a region of interest, a region contained in the target image, wherein the region of interest is a three-dimensional region;
• processing to acquire an intersection region that is a region where the target cross section and the region of interest cross each other;
• processing to calculate a statistical value of the estimated values in the intersection region, using the estimated values at a plurality of positions in the intersection region;
• and
• processing to display the statistical value on a display unit.