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US 11,900,533 B2Granted
Ophthalmic system, image signal output method, image signal output device, program, and three-dimensional fundus image generation method
AssigneeNikon Corporation
InventorMariko Hirokawa
Life of this patent
Estimating the term…
Abstract
An image signal output method including outputting a first image signal to display an eyeball model selection screen for selecting one eyeball model from out of plural eyeball models of different types, converting a two-dimensional fundus image of the subject eye so as to generate a three-dimensional fundus image based on a selected eyeball model, and outputting a second image signal to display a fundus image display screen including the three-dimensional fundus image.
Claims8
An image processing method comprising:
- displaying an eyeball model selection screen for selecting one eyeball model from out of a plurality of eyeball models of different forms;
- selecting one eyeball model from out of the plurality of eyeball models;
- converting a two-dimensional fundus image of a subject eye so as to generate a three-dimensional fundus image based on a selected eyeball model and a position of imaging said two-dimensional fundus image;
- and
- displaying a fundus image display screen including the three-dimensional fundus image,
- wherein the selecting one eyeball model out of the plurality of eyeball models comprises selecting one eyeball model from out of the plurality of eyeball models based on:
- a distance, passing through a center of a pupil of the subject eye, from a first predetermined point on a cornea of the subject eye to a first point on a retina of the subject eye;
- a distance, passing through the center of the pupil of the subject eye, from a second predetermined point on the cornea of the subject eye to a second point on the retina;
- a distance, passing through the center of the pupil of the subject eye, from a third predetermined point on the cornea of the subject eye to a third point on the retina;
- a first angle formed by a line connecting the center of the pupil of the subject eye and the first point, and a reference line, which connects an eyeball center of the subject eye and the center of the pupil;
- a second angle formed by a line connecting the center of the pupil and the second point, and the reference line;
- and
- a third angle formed by a line connecting the center of the pupil and the third point, and the reference line.
10 more elements
A non-transitory computer readable medium storing a program to cause a computer to execute processing including:
- displaying an eyeball model selection screen for selecting one eyeball model from out of a plurality of eyeball models of different forms;
- selecting one eyeball model from out of the plurality of eyeball models;
- converting a two-dimensional fundus image so as to generate a three-dimensional fundus image based on a selected eyeball model and a position of imaging said two-dimensional fundus image;
- and
- displaying a fundus image display screen including the three-dimensional fundus image,
- wherein the selecting one eyeball model out of the plurality of eyeball models comprises selecting one eyeball model from out of the plurality of eyeball models based on:
- a distance, passing through a center of a pupil of the subject eye, from a first predetermined point on a cornea of the subject eye to a first point on a retina of the subject eye;
- a distance, passing through the center of the pupil of the subject eye, from a second predetermined point on the cornea of the subject eye to a second point on the retina;
- a distance, passing through the center of the pupil of the subject eye, from a third predetermined point on the cornea of the subject eye to a third point on the retina;
- a first angle formed by a line connecting the center of the pupil of the subject eye and the first point, and a reference line, which connects an eyeball center of the subject eye and the center of the pupil;
- a second angle formed by a line connecting the center of the pupil and the second point, and the reference line;
- and
- a third angle formed by a line connecting the center of the pupil and the third point, and the reference line.
10 more elements
A non-transitory computer readable medium storing a program to cause a computer to execute processing including:
- generating an eyeball model selection screen for selecting one eyeball model from out of a plurality of eyeball models of different forms;
- selecting one eyeball model from out of the plurality of eyeball models;
- converting a two-dimensional fundus image so as to generate a three-dimensional fundus image based on a selected eyeball model and a position of imaging said two-dimensional fundus image;
- generating a fundus image display screen including the three-dimensional fundus image;
- and
- outputting an image signal corresponding to the eyeball model selection screen or the fundus image display screen,
- wherein the comprises selecting one eyeball model from out of the plurality of eyeball models is based on:
- a distance, passing through a center of a pupil of the subject eye, from a first predetermined point on a cornea of the subject eye to a first point on a retina of the subject eye;
- a distance, passing through the center of the pupil of the subject eye, from a second predetermined point on the cornea of the subject eye to a second point on the retina;
- a distance, passing through the center of the pupil of the subject eye, from a third predetermined point on the cornea of the subject eye to a third point on the retina;
- a first angle formed by a line connecting the center of the pupil of the subject eye and the first point, and a reference line, which connects an eyeball center of the subject eye and the center of the pupil;
- a second angle formed by a line connecting the center of the pupil and the second point, and the reference line;
- and
- a third angle formed by a line connecting the center of the pupil and the third point, and the reference line.
11 more elements
An ophthalmic system comprising:
- an ophthalmic imaging device;
- and
- an image processing device configured to execute processing including
- displaying an eyeball model selection screen for selecting one eyeball model from out of a plurality of eyeball models of different forms,
- selecting one eyeball model from out of the plurality of eyeball models;
- converting a two-dimensional fundus image obtained by imaging using the ophthalmic imaging device so as to generate a three-dimensional fundus image based on a selected eyeball model and a position of imaging said two-dimensional fundus image, and
- displaying a fundus image display screen including the three-dimensional fundus image,
- wherein the selecting one eyeball model out of the plurality of eyeball models comprises selecting one eyeball model from out of the plurality of eyeball models based on:
- a distance, passing through a center of a pupil of the subject eye, from a first predetermined point on a cornea of the subject eye to a first point on a retina of the subject eye;
- a distance, passing through the center of the pupil of the subject eye, from a second predetermined point on the cornea of the subject eye to a second point on the retina;
- a distance, passing through the center of the pupil of the subject eye, from a third predetermined point on the cornea of the subject eye to a third point on the retina;
- a first angle formed by a line connecting the center of the pupil of the subject eye and the first point, and a reference line, which connects an eyeball center of the subject eye and the center of the pupil;
- a second angle formed by a line connecting the center of the pupil and the second point, and the reference line;
- and
- a third angle formed by a line connecting the center of the pupil and the third point, and the reference line.
12 more elements
Dependencies are inferred from the claim text.