Image sensing apparatus using optical coherence tomography and control method therefor
AssigneeCanon Kabushiki Kaisha
InventorNorihiko Utsunomiya
Life of this patent
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Abstract
Tomographic images of a plurality of planes at a disease site of a fundus are taken exactly within a short period of time, and the tomographic images are respectively displayed so that the positional relationship thereof becomes clear. A low coherent optical tomographic image sensing apparatus for imaging a fundus includes a sensing unit which takes tomographic images of a plurality of planes intersecting each other in time division, a display unit which displays the taken tomographic images at separate sites on the identical screen, and a position indication unit which displays, in each tomographic image, an intersection position of the each tomographic image and another tomographic image intersecting each other.
Claims14
An image sensing apparatus using optical coherence tomography, comprising:
- a sensing unit which takes tomographic images of a plurality of planes intersecting each other in time division;
- a display unit which displays the tomographic images of the plurality of planes;
- and
- a position indication unit which displays intersection positions of the plurality of planes intersecting each other on each displayed tomographic image or in a vicinity of the each displayed tomographic image.
An image sensing apparatus using optical coherence tomography, comprising:
- a first unit which displays a first tomographic image of a subject's eye in a first area of a display screen;
- a second unit which displays a second tomographic image of a plane intersecting a plane along which the first tomographic image is taken in a second area of the display screen;
- a position indication unit which displays information indicating a position where the plane along which the first tomographic image is taken and the plane along which the second tomographic image is taken intersect each other in each of the first area and the second area;
- a position change instruction unit which performs an operation of issuing a change instruction to change the position indicated by the information displayed in the first area;
- a sensing unit which changes the plane along which the second tomographic image to be displayed in the second area is taken to take a new second tomographic image based on the change instruction to change the position;
- and
- a position information change unit which changes information indicating a position where the plane along which the new second tomographic image is taken and the plane along which the first tomographic image is taken intersect each other.
A control method for an image sensing apparatus using optical coherence tomography, comprising:
- taking tomographic images of a plurality of planes intersecting each other in time division;
- displaying the tomographic images on the plurality of planes on an image display unit;
- and
- displaying intersection positions of the plurality of planes intersecting each other on each displayed tomographic image or in a vicinity of the each displayed tomographic image.
An image sensing apparatus for taking an optical coherence tomographic image of a subject's eye, using combined light obtained by combining return light from the subject's eye irradiated with sensing light with reference light corresponding to the sensing light, comprising:
- an instruction unit which performs an operation of issuing an instruction on a plurality of planes intersecting each other, using the optical coherence tomographic image of the subject's eye;
- and
- a sensing unit which takes the optical coherence tomographic image at a position based on the instruction from the instruction unit, wherein the optical coherence tomographic image is taken within a predetermined period of time.
Dependencies are inferred from the claim text.