JP2018079208A5 - - Google Patents

Description

One of the image processing apparatus of the present invention, using by analyzing the fundus of the three-dimensional tomographic image of the eye, and analyzing means for obtaining shape information of the shape of the fundus, the shape information, the 3 Evaluation means for evaluating a blood vessel included in the blood vessel image of the fundus oculi, which is associated with a positional relationship with a three-dimensional tomographic image, and display control for performing control for displaying information indicating a blood vessel evaluation result by the evaluation means on a display unit Means.
Another aspect of the image processing apparatus according to the present invention is to use an analysis unit that obtains shape information on the shape of the fundus by analyzing a three-dimensional tomographic image of the fundus of the eye to be inspected, and using the shape information. Evaluating means for evaluating a blood vessel included in the blood vessel image of the fundus oculi, which is associated with the positional relationship with the three-dimensional tomographic image .
The present invention also includes an image processing method using the above-described image processing apparatus, and a program for causing a computer to execute the image processing method.

Claims (19)

An analyzing unit that obtains shape information on the shape of the fundus by analyzing a three-dimensional tomographic image of the fundus of the subject's eye;
Using the shape information, an evaluation unit that evaluates a blood vessel included in the blood vessel image of the fundus associated with the positional relationship with the three-dimensional tomographic image ;
A display control unit for performing control for displaying information indicating a blood vessel evaluation result by the evaluation unit on a display unit. The display control unit changes a display mode of a blood vessel included in the blood vessel image using the evaluation result of the blood vessel by the evaluation unit, and displays a blood vessel image according to the change on the display unit as information indicating the evaluation result. The image processing apparatus according to claim 1, wherein the image processing apparatus performs control to perform the control. The display control unit changes the display mode of the blood vessel included in the blood vessel image using the evaluation result of the blood vessel by the evaluation unit, and superimposes the blood vessel image according to the change as information indicating the evaluation result. The image processing apparatus according to claim 1, wherein control is performed to display a two-dimensional tomographic image on the display unit.   The image processing apparatus according to claim 2, wherein the display control unit changes a display density or a display color as the change of the display mode.   When the shape information is a curvature of a boundary surface in each layer of the three-dimensional tomographic image, the display control unit determines the curvature according to the magnitude of the curvature of the blood vessel obtained as an evaluation result of the blood vessel by the evaluation unit. The image processing apparatus according to any one of claims 2 to 4, wherein a display mode of the blood vessel is changed. The display control means performs control to create information indicating the evaluation result according to a designated display condition and display the information on the display unit. When an instruction to change the display condition is input, the display control unit performs the change. The image processing apparatus according to claim 1, wherein control is performed to display information indicating the evaluation result according to the display condition on the display unit. An analyzing unit that obtains shape information on the shape of the fundus by analyzing a three-dimensional tomographic image of the fundus of the subject's eye;
An evaluation unit configured to evaluate a blood vessel included in the blood vessel image of the fundus oculi, which is associated with the positional relationship with the three-dimensional tomographic image , using the shape information.   The image processing apparatus according to any one of claims 1 to 7, wherein the analysis unit acquires shape information on the shape of the fundus oculi corresponding to travel coordinates of a blood vessel included in the blood vessel image. . Means for aligning the three-dimensional tomographic image and the blood vessel image, thereby associating a positional relationship between the three-dimensional tomographic image and the blood vessel image,
The image processing apparatus according to claim 1, wherein the evaluation unit evaluates the blood vessel after performing alignment between the three-dimensional tomographic image and the blood vessel image. The shape information is a curvature of a boundary surface in each layer of the three-dimensional tomographic image, a radius of curvature thereof, a slope of the boundary surface, a change rate of the slope, local unevenness of the boundary surface, a layer thickness of each layer, and The information according to any one of claims 1 to 9 , wherein the information is information relating to any one of the shape parameters of the change rate of the layer thickness, or information relating to a combination of these shape parameters. Image processing device. The image processing apparatus according to claim 10 , wherein when the shape information is a curvature of the boundary surface, the evaluation unit evaluates a blood vessel included in the blood vessel image based on the magnitude of the curvature. The evaluation unit evaluates a blood vessel included in the blood vessel image by using the shape information and considering a position where a blood vessel included in the blood vessel image exists, a diameter of the blood vessel, and a traveling direction of the blood vessel. the image processing apparatus according to any one of claims 1 to 11, wherein the. A first generating means for generating said 3-dimensional tomographic image using the first image pickup signal according to the prior SL fundus,
And second generating means for generating the blood vessel image using a second image pickup signal according to the prior SL fundus,
Further comprising an image processing apparatus according to any one of claims 1 to 12, wherein the. The first generation unit acquires a plurality of first imaging signals obtained by imaging the fundus at different dates and times, and uses the plurality of first imaging signals to acquire a plurality of the three-dimensional tomographic images. Produces
The second generation unit acquires a plurality of second imaging signals obtained by photographing the fundus at the different dates and times, and uses the plurality of second imaging signals to generate a plurality of the blood vessel images. Generate
The analyzing means obtains the shape information for each of the three-dimensional tomographic images by analyzing each of the three-dimensional tomographic images in the plurality of three-dimensional tomographic images,
14. The image according to claim 13 , wherein the evaluation unit evaluates a blood vessel included in each blood vessel image in the plurality of blood vessel images, using each of the shape information acquired by the analysis unit. Processing equipment. The image processing apparatus according to claim 13, wherein the second generation unit generates the blood vessel image using motion contrast data. Return light from the fundus irradiating the measurement light and communicably connected to an imaging device having a detection unit that detects a combined light of the reference light corresponding to the measurement light,
16. The image processing apparatus according to claim 13, wherein the first generation unit generates the three-dimensional tomographic image using the detected combined light. An analysis step of acquiring shape information related to the shape of the fundus by analyzing a three-dimensional tomographic image of the fundus of the subject's eye;
Using the shape information, an evaluation step of evaluating a blood vessel included in the blood vessel image of the fundus associated with the positional relationship with the three-dimensional tomographic image ;
A display control step of performing control for displaying information indicating the evaluation result of the blood vessel in the evaluation step on a display unit. An analysis step of acquiring shape information related to the shape of the fundus by analyzing a three-dimensional tomographic image of the fundus of the subject's eye;
Using the shape information to evaluate a blood vessel included in the blood vessel image of the fundus associated with the positional relationship with the three-dimensional tomographic image . A program for causing a computer to execute each step of the image processing method according to claim 17 .