Endoscope system, processor for endoscope and operation method for endoscope system for determining an erroneous estimation portion
AssigneeOlympus Corporation
InventorsShunya Akimoto, Soichi Ikuma
Life of this patent
Estimating the term…
Abstract
An endoscope system includes an endoscope that acquires an image of a subject and a processor. The processor acquires position and posture information of the endoscope, estimates a three-dimensional shape of the subject based on the image and the position and posture information, generates, based on the position information, a cross section crossing a trajectory on which the endoscope passed, and determines an erroneous estimation portion based on a shape characteristic of the three-dimensional shape on the cross section.
Claims13
An endoscope system comprising:
- an endoscope that picks up an image in a subject and acquires the image;
- and
- a processor, wherein the processor
- acquires position information and posture information of the endoscope,
- estimates, based on the image, a relative three-dimensional position viewed from the endoscope of a target portion in the subject,
- estimates a three-dimensional shape in the subject based on the relative three-dimensional position and the position information and the posture information,
- generates a cross section, which is a plane crossing a centerline of a region including a trajectory on which the endoscope passed, based on the position information, and
- determines an erroneous estimation portion in the three-dimensional shape based on a shape characteristic of a shape cross section, which is a portion crossing the cross section, of the three-dimensional shape.
A processor for an endoscope that
- acquires position information and posture information of an endoscope,
- estimates, based on an image acquired by the endoscope, a relative three-dimensional position viewed from the endoscope of a target portion in a subject,
- estimates a three-dimensional shape in the subject based on the relative three-dimensional position and the position information and the posture information,
- generates a cross section, which is a plane crossing a centerline of a region including a trajectory on which the endoscope passed, based on the position information, and
- determines an erroneous estimation portion in the three-dimensional shape based on a shape characteristic of a shape cross section, which is a portion crossing the cross section, of the three-dimensional shape.
An operation method for an endoscope system, the endoscope system including an endoscope that picks up an image in a subject and acquires the image, the operation method comprising:
- acquiring position information and posture information of the endoscope;
- estimating, based on the image, a relative three-dimensional position viewed from the endoscope of a target portion in the subject;
- estimating a three-dimensional shape in the subject based on the relative three-dimensional position and the position information and the posture information;
- generating a cross section, which is a plane crossing a centerline of a region including a trajectory on which the endoscope passed, based on the position information;
- and
- determining an erroneous estimation portion in the three-dimensional shape based on a shape characteristic of a shape cross section, which is a portion crossing the cross section, of the three-dimensional shape.
Dependencies are inferred from the claim text.