Image display apparatus, image display method and storage medium storing image display program

摘要

An image display apparatus includes a display device and a computer configured to execute a program to cause the computer to serve as a display controlling part. The display part displays a first CT image and a second CT image simultaneously. The first CT image and the second CT image represent the same object but taken in different time periods. The display controlling part performs: displaying the first and second CT images simultaneously on the display device according to a first display mode; determining a target portion designated in the first CT image; and changing a display mode of a corresponding portion of the second CT image from the first display mode into a second display mode, the corresponding portion corresponding to the target portion designated in the first CT image.

主权项

1. An image display apparatus, comprising:
a display device configured to display a first image and a second image simultaneously, the first image and the second image representing the same object taken in different time periods; and a processor configured to execute a program to perform a process including
displaying the first and second images simultaneously on the display device according to a first display mode;determining a target portion designated in the first image;changing a display mode of a corresponding portion of the second image from the first display mode to a second display mode, the corresponding portion of the second image corresponding to the target portion designated in the first image;identifying a peripheral edge of a predetermined part in each of the first and second images;determining opposite two points on the peripheral edge in the first image, the two points being positioned on a straight line passing through a designated point designated in the first image;calculating feature amounts of each point on each of the peripheral edges in the first and second images;identifying two points on the peripheral edge corresponding to the two points on the peripheral edge of the first image from among points on the peripheral edge in the second image based on the feature amounts of each point on the peripheral edges in the first and second images;identifying distances from the designated point in the first image to each of the two points determined in the first image; andidentifying in the second image a point satisfying a ratio of the identified distances.