JP2017046976A5

JP2017046976A5 -

Info

Publication number: JP2017046976A5
Application number: JP2015173325A
Authority: JP
Filing date: 2015-09-02
Publication date: 2018-10-11
Anticipated expiration: 2035-09-02

Claims

An ophthalmologic photographing apparatus for photographing an eye to be examined,
First acquisition means for acquiring a plurality of OCT signals that are temporally different with respect to the same position on the eye to be examined by an OCT optical system that obtains tomographic image data of the eye to be examined;
Image processing means for processing the plurality of OCT signals in the depth direction at each scanning position acquired by the first acquisition means to acquire frontal motion contrast data or three-dimensional motion contrast data in the eye to be examined; ,
Image dividing means for dividing the front motion contrast data or the three-dimensional motion contrast data into a plurality of regions;
Determination means for determining the suitability of the front motion contrast data for each divided area or the three-dimensional motion contrast data for each divided area divided by the image dividing means for each divided area;
An ophthalmologic photographing apparatus comprising:

The ophthalmologic photographing apparatus according to claim 1.
When it is determined by the determination means that the front motion contrast data or the three-dimensional motion contrast data is not appropriate in the predetermined divided area, it is determined that the front motion contrast data of the divided area determined to be incorrect or not appropriate. A plurality of OCT signals are re-acquired by the second acquisition means at each scanning position in the same divided area as the three-dimensional motion contrast data of the divided area, and the re-acquired plurality of OCT signals at each scanning position are not appropriate. An ophthalmologic photographing apparatus comprising: control means for setting as a plurality of OCT signals in the divided area determined to be.

In the ophthalmologic photographing apparatus according to claim 1 or 2,
In the front motion contrast data or the three-dimensional motion contrast data, the image processing means detects a motion artifact by image processing from the front motion contrast data or the three-dimensional motion contrast data.
A plurality of OCT signals at each scanning position in the same area where the motion artifact is detected by the image processing means are re-acquired by a second acquisition means, and the plurality of OCT signals at the re-acquired scanning positions are obtained. An ophthalmic imaging apparatus comprising: control means for setting a plurality of OCT signals in a region where the motion artifact is applied .

An ophthalmologic photographing apparatus for photographing an eye to be examined,
First acquisition means for acquiring a plurality of OCT signals that are temporally different with respect to the same position on the eye to be examined by an OCT optical system that obtains tomographic image data of the eye to be examined;
Image processing means for processing the plurality of OCT signals in the depth direction at each scanning position acquired by the first acquisition means to acquire frontal motion contrast data or three-dimensional motion contrast data in the eye to be examined; With
In the front motion contrast data or the three-dimensional motion contrast data, the image processing means detects a motion artifact by image processing from the front motion contrast data or the three-dimensional motion contrast data.
The plurality of OCT signals at each scanning position in the same area where the motion artifact is detected by the image processing means are re-acquired by the first acquisition means, and the plurality of OCT signals at the re-acquired scanning positions are obtained. An ophthalmologic photographing apparatus comprising: control means for setting a signal as a plurality of OCT signals in a region where the motion artifact is performed .

An ophthalmic imaging program that is executed in a control device that controls the operation of an ophthalmologic imaging apparatus that images an eye to be examined,
By being executed by the processor of the control device,
A first acquisition step of acquiring a plurality of OCT signals that are temporally different with respect to the same position on the eye to be examined by an OCT optical system that obtains tomographic image data of the eye to be examined;
An image processing step of processing the plurality of OCT signals in the depth direction at each scanning position acquired by the first acquisition step to acquire frontal motion contrast data or three-dimensional motion contrast data in the eye to be examined; ,
An image dividing step of dividing the front motion contrast data or the three-dimensional motion contrast data into a plurality of regions;
A determination step for determining, for each divided region, whether the front motion contrast data for each divided region divided by the image dividing step or the three-dimensional motion contrast data for each divided region is appropriate;
Is executed by the ophthalmologic photographing apparatus.

An ophthalmic imaging program that is executed in a control device that controls the operation of an ophthalmologic imaging apparatus that images an eye to be examined,
By being executed by the processor of the control device,
A first acquisition step of acquiring a plurality of OCT signals that are temporally different with respect to the same position on the eye to be examined by an OCT optical system that obtains tomographic image data of the eye to be examined;
In the first acquisition step, the plurality of OCT signals in the depth direction at each scanning position acquired are processed to acquire front motion contrast data or three-dimensional motion contrast data in the eye to be examined, and the front motion In contrast data or the three-dimensional motion contrast data, an image processing step of detecting a motion artifact by image processing from the front motion contrast data or the three-dimensional motion contrast data;
A second acquisition step of re-acquiring a plurality of OCT signals at each scanning position in the same region as the region where the motion artifact is detected by the image processing step;
A control step of setting the plurality of OCT signals at each of the re-acquired scanning positions as a plurality of OCT signals in the region where the motion artifact has been performed;
Is executed by the ophthalmologic photographing apparatus.