Image processing apparatus, image processing method, and storage medium

Patent metadata

Field	Value
Publication number	US-2019073532-A1
Application number	US-201816119892-A
Country	US
Kind code	A1
Filing date	Aug 31, 2018
Priority date	Sep 6, 2017
Publication date	Mar 7, 2019
Grant date	—

Abstract

An image processing apparatus capable of easily generating a two-dimensional panoramic image at a high speed from a plurality of three-dimensional images includes an acquisition unit configured to acquire a generation condition of a first en-face image generated from a first three-dimensional image of an target eye, a first generation unit configured to generate a second en-face image from a second three-dimensional image of the target eye by applying the generation condition acquired by the acquisition unit to the second three-dimensional image, and a second generation unit configured to generate a combined image by combining the first en-face image with the second en-face image.

First claim

What is claimed is:

1 . An image processing apparatus comprising:
an acquisition unit configured to acquire a generation condition of a first en-face image generated from a first three-dimensional image of a target eye; a first generation unit configured to generate a second en-face image from a second three-dimensional image of the target eye by applying the generation condition acquired by the acquisition unit to the second three-dimensional image; and a second generation unit configured to generate a combined image by combining the first en-face image with the second en-face image.

2 . The image processing apparatus according to claim 1 , wherein the first generation unit generates, in a case where the first en-face image displayed on a display unit is selected by a user and the second three-dimensional image is selected as a target of the combined image, the second en-face image by applying the generation condition acquired by the acquisition unit to the second three-dimensional image of the target eye.

3 . The image processing apparatus according to claim 1 , wherein the generation condition includes at least one of a depth range of the first en-face image in the first three-dimensional image, a method for determining a representative value of a pixel in the depth range, and whether artifact reduction processing is executed.

4 . The image processing apparatus according to claim 1 ,
wherein the first three-dimensional image and the second three-dimensional image are three-dimensional images acquired by imaging areas of the target eye at least different in part, and wherein the combined image is a panoramic image of the first en-face image and the second en-face image.

5 . The image processing apparatus according to claim 1 ,
wherein the first three-dimensional image and the second three-dimensional image are three-dimensional images acquired by imaging areas of approximately same portions of the target eye, and wherein the combined image is an image acquired by averaging the first en-face image and the second en-face image.

6 . The image processing apparatus according to claim 1 ,
wherein the first generation unit generates a third en-face image and a fourth en-face image from the first three-dimensional image and the second three-dimensional image, the third and fourth en-face images being within a depth range including an area on a vitreous body side with respect to the depth range on the first three-dimensional image included in the generation condition, and wherein the second generation unit aligns the first en-face image with the second en-face image based on a result of alignment between the third en-face image and the fourth en-face image to generate the combined image.

7 . The image processing apparatus according to claim 6 , wherein the first generation unit generates, in a case where the depth range in the first three-dimensional image included in the generation condition does not include a ganglion cell layer, the third en-face image and the fourth en-face image.

8 . The image processing apparatus according to claim 7 , wherein the first generation unit does not generate, in a case where the depth range in the first three-dimensional image included in the generation condition includes the ganglion cell layer, the third en-face image and the fourth en-face image.

9 . The image processing apparatus according to claim 1 , wherein the three-dimensional image is a three-dimensional tomographic image acquired by using optical coherence tomography.

10 . The image processing apparatus according to claim 1 , wherein the three-dimensional image is a three-dimensional motion contrast image based on a tomographic image acquired by using optical coherence tomography.

11 . An image processing method comprising:
acquiring a generation condition of a first en-face image generated from a first three-dimensional image of a target eye; generating a second en-face image from a second three-dimensional image of the target eye by applying the acquired generation condition to the second three-dimensional image; and generating a combined image by combining the first en-face image with the second en-face image.

12 . A storage medium storing a program that when run on a computer causes a computer to execute the image processing method according to claim 11 .

Assignees

• Canon Kk

Inventors

• Kawase Daisuke
• Uchida Hiroki
• Sagano Osamu

Classifications

• G06T12/10

  Image preprocessing, e.g. calibration, positioning of sources or scatter correction · CPC title

• G06T11/005

  Physics · mapped topic

• G06T2207/20221

  Image fusion; Image merging · CPC title

• G06T7/579

  from motion · CPC title

• G06T2211/404

  Angiography · CPC title