IMAGE PROCESSING DEVICE, METHOD AND RECORDING MEDIUM

摘要

Employing a first image and a second image that represent a subject in different phases, based on a first insertion position and a first tip position of the first image and deformation information for deforming the first image so as to be aligned with the second image, a second insertion position of the second image corresponding to the first insertion position and a second tip position are specified such that a direction corresponding to a first insertion direction from the first insertion position toward the first tip position becomes a second insertion direction from the second insertion position toward the second tip position, and a second observation image obtained by visualizing the inside of the subject in a phase corresponding to the second image with the second tip position as a viewpoint is generated. Thereby, observation images of different phases as viewed through a virtual rigid surgical device are generated.

主权项

1. An image processing device comprising:
a three-dimensional image acquisition unit which acquires a first image and a second image respectively representing the inside of a subject in different phases as three-dimensional images captured using a medical imaging device; a deformation information acquisition unit which acquires deformation information for deforming the first image such that corresponding positions of the first image and the second image are aligned with each other; an observation condition determination unit which acquires a first insertion position to be the insertion position of a surgical instrument having an elongated rigid insertion portion inserted into the body of the subject and a first tip position to be the position of a tip portion of the surgical instrument from the first image as a first observation condition, based on the first observation condition and the deformation information, specifies a second insertion position to be the position on the second image corresponding to the first insertion position and specifies a second tip position such that a direction corresponding to a first insertion direction from the first insertion position toward the first tip position becomes a second insertion direction from the second insertion position toward the second tip position to be the position of the tip portion of the surgical instrument in the second image, and determines the second insertion position and the second tip position as a second observation condition; and an image generation unit which generates a second observation image obtained by visualizing the inside of the subject from the second tip position from a deformed first image obtained by deforming the first image based on the deformation information or the second image based on the second observation condition with the second tip position as a viewpoint.