Endoscope apparatus and measurement method
AssigneeOlympus Corporation
InventorsFumio Hori, Yuusuke Kuwa
Life of this patent
Estimating the term…
Abstract
An endoscope apparatus, includes: an imaging unit that captures a subject to acquire an image of the subject; a base point setting section that sets a first base point and a second base point on the image based on an instruction input via an input device; a base line setting section that sets a base line on the image based on the first base point and the second base point; a point setting section that sets at least three points on the image based on the base line; a base plane setting section that sets a base plane in a space based on the at least three points; a distance calculation section that calculates a distance between the base plane and a point corresponding to the first base point; and a display that displays the image.
Claims9
An endoscope apparatus, comprising:
- an imaging unit that acquires an image of a subject;
- a display that displays the image;
- a base point setting section that sets a first base point and a second base point on the image based on an instruction input via an input device;
- a base line setting section that sets a base line on the image based on the first base point and the second base point, such that the base line completely surrounds the first base point and does not include the first base point;
- a point setting section that sets at least three points on the image based on the base line, wherein the at least three points are on the base line and do not include the first base point;
- a corresponding point setting section that sets, after positions of the first base point and the second base point are fixed on the image, a corresponding point in space that corresponds to the first base point set on the image;
- a base plane setting section that sets, after the positions of the first base point and the second base point are fixed on the image, a base plane in space based on the at least three points set on the image;
- and
- a distance calculation section that (i) identifies an intersection point where a line intersects the base plane set in space, said line being normal to the base plane set in space and passing through the corresponding point in space, and (ii) calculates a spatial distance between the intersection point on the base plane set in space and the corresponding point set in space that corresponds to the first base point.
A measurement method comprising:
- acquiring an image of a subject;
- setting a first base point and a second base point on the image based on an instruction input via an input device;
- setting a base line on the image based on the first base point and the second base point, such that the base line completely surrounds the first base point and does not include the first base point;
- setting at least three points on the image based on the base line, wherein the at least three points do not include the first base point;
- after positions of the first base point and the second base point are fixed on the image, setting a corresponding point in space that corresponds to the first base point set on the image;
- after the positions of the first base point and the second base point are fixed on the image, setting a base plane in space based on the at least three points set on the image;
- identifying an intersection point where a line intersects the base plane set in space, said line being normal to the base plane set in space and passing through the corresponding point in space;
- and
- calculating a spatial distance between the intersection point on the base plane set in space and the corresponding point set in space that corresponds to the first base point.
Dependencies are inferred from the claim text.