Image display method, display control device, and recording medium

A display control device comprising a processor configured to:

• select a reference image that is a two-dimensional image of a subject;
• estimate, on the basis of two or more two-dimensional images of the subject including the reference image, three-dimensional coordinates of two or more points of the subject and a camera coordinate indicating three-dimensional coordinates of a camera that acquired the reference image,
• wherein the camera coordinate indicates three-dimensional coordinates of a camera that acquired each of the two or more two-dimensional images and is associated with each of the two or more two-dimensional images;
• generate a three-dimensional model on the basis of the three-dimensional coordinates of the two or more points;
• display a three-dimensional image on a display,
• wherein the three-dimensional image visualizes a position indicated by at least one of the camera coordinate and a set of three-dimensional coordinates of one or more points of the subject calculated on the basis of the camera coordinate,
• project two-dimensional coordinates of one or more points of a region of the subject seen in the reference image onto the three-dimensional model to estimate corresponding one or more coordinates on the three-dimensional model;
• and
• display a shape image showing the three-dimensional model of the subject seen from a viewpoint different from the camera coordinate, the one or more coordinates on the three-dimensional model estimated from the two-dimensional coordinates of the one or more points of the region of the subject seen in the reference image projected onto the three dimensional model.

A non-transitory computer-readable recording medium storing a program that causes a computer to execute:

• a selection step of selecting a reference image that is a two-dimensional image of a subject;
• an estimation step of estimating, on the basis of two or more two-dimensional images of the subject including the reference image, three-dimensional coordinates of two or more points of the subject and a camera coordinate indicating three-dimensional coordinates of a camera that acquired the reference image,
• wherein the camera coordinate indicates three-dimensional coordinates of a camera that acquired each of the two or more two-dimensional images and is associated with each of the two or more two-dimensional images;
• a generation step of generating a three-dimensional model on the basis of the three-dimensional coordinates of the two or more points;
• a display step of displaying a three-dimensional image on a display,
• wherein the three-dimensional image visualizes a position indicated by at least one of the camera coordinate and a set of three-dimensional coordinates of one or more points of the subject calculated on the basis of the camera coordinate,
• wherein the display step comprises:
• projecting two-dimensional coordinates of one or more points of a region of the subject seen in the reference image onto the three-dimensional model to estimate corresponding one or more coordinates on the three-dimensional model;
• and
• displaying a shape image showing the three-dimensional model of the subject seen from a viewpoint different from the camera coordinate, the one or more coordinates on the three-dimensional model estimated from the two-dimensional coordinates of the one or more points of the region of the subject seen in the reference image projected onto the three dimensional model.