JP2016198279A5

JP2016198279A5 -

Info

Publication number: JP2016198279A5
Application number: JP2015080467A
Authority: JP
Filing date: 2015-04-09
Publication date: 2018-05-24
Anticipated expiration: 2035-04-09

Description

（１）第１ＯＣＴデータと、前記第１ＯＣＴデータとは取得領域の一部が少なくとも異なる第２ＯＣＴデータとを取得するＯＣＴデータ取得手段と、前記第１ＯＣＴデータと前記第２ＯＣＴデータに関して、第１の処理を行うことによって、前記第１ＯＣＴデータに基づく第１ＯＣＴ正面画像と、前記第２ＯＣＴデータに基づく第２ＯＣＴ正面画像とを生成し、前記第１ＯＣＴデータと前記第２ＯＣＴデータに関して、第１の処理とは異なる第２の処理を行うことによって、前記第１ＯＣＴデータに基づく第３ＯＣＴ正面画像と、前記第２ＯＣＴデータに基づく第４ＯＣＴ正面画像とを生成する画像生成手段と、前記第１ＯＣＴ正面画像と前記第２ＯＣＴ正面画像との相対的な位置情報である第１画像位置情報と、前記第３ＯＣＴ正面画像と前記第４ＯＣＴ正面画像との相対的な位置情報である第２画像位置情報と、を画像解析によって取得し、取得された前記第１画像位置情報と前記第２画像位置情報とに基づいて、前記第１ＯＣＴデータと前記第２ＯＣＴデータとの相対的な位置情報であるデータ位置情報を演算する演算制御手段と、を備えることを特徴とする。
（２）ＯＣＴ信号処理装置において実行されるＯＣＴ信号処理プログラムであって、前記ＯＣＴ信号処理装置のプロセッサに実行されることによって、第１ＯＣＴデータと、前記第１ＯＣＴデータとは取得領域の一部が少なくとも異なる第２ＯＣＴデータを取得するＯＣＴデータ取得ステップと、前記第１ＯＣＴデータと前記第２ＯＣＴデータに関して、第１の処理を行うことによって、前記第１ＯＣＴデータに基づく第１ＯＣＴ正面画像と、前記第２ＯＣＴデータに基づく第２ＯＣＴ正面画像とを生成し、前記第１ＯＣＴデータと前記第２ＯＣＴデータに関して、第１の処理とは異なる第２の処理を行うことによって、前記第１ＯＣＴデータに基づく第３ＯＣＴ正面画像と、前記第２ＯＣＴデータに基づく第４ＯＣＴ正面画像とを生成する画像生成ステップと、前記第１ＯＣＴ正面画像と前記第２ＯＣＴ正面画像との相対的な位置情報である第１画像位置情報と、前記第３ＯＣＴ正面画像と前記第４ＯＣＴ正面画像との相対的な位置情報である第２画像位置情報と、を画像解析によって取得し、取得された前記第１画像位置情報と前記第２画像位置情報とに基づいて、前記第１ＯＣＴデータと前記第２ＯＣＴデータとの相対的な位置情報であるデータ位置情報を演算する演算制御ステップと、を前記ＯＣＴ信号処理装置に実行させることを特徴とする。 (1) OCT data acquisition means for acquiring first OCT data and second OCT data in which at least a part of an acquisition area differs from the first OCT data, and first processing relating to the first OCT data and the second OCT data To generate a first OCT front image based on the first OCT data and a second OCT front image based on the second OCT data, and the first OCT data and the second OCT data are different from the first process. by performing the second processing, the a first 3OCT front image based on the first 1OCT data, image producing means for producing a first 4OCT front image based on the first 2OCT data, the first 1OCT front image and the second 2OCT front a first image position information is relative position information of the image, and the second 3OCT front image Wherein a first 4OCT second image position information is relative position information of the front image, were acquired by the image analysis, on the basis of the acquired first image position information and the second image position information, the Computational control means for computing data position information, which is relative position information between the first OCT data and the second OCT data, is provided.
(2) An OCT signal processing program that is executed in the OCT signal processing device, and is executed by a processor of the OCT signal processing device so that the first OCT data and the first OCT data have a part of an acquisition region. OCT data acquisition step for acquiring at least different second OCT data, and by performing a first process on the first OCT data and the second OCT data, a first OCT front image based on the first OCT data, and the second OCT data And a second OCT front image based on the first OCT data by performing a second process different from the first process on the first OCT data and the second OCT data, Generating a fourth OCT front image based on the second OCT data; An image generating step, the second and the first image position information 1OCT a relative position information of the front image and the second 2OCT front image, relative position information between the first 3OCT front image and the second 4OCT front image The second image position information is obtained by image analysis, and the first OCT data and the second OCT data are relative to each other based on the obtained first image position information and the second image position information. And a calculation control step for calculating data position information, which is accurate position information, is executed by the OCT signal processing apparatus.

Claims

OCT data acquisition means for acquiring first OCT data and second OCT data in which at least a part of an acquisition area differs from the first OCT data;
By performing a first process on the first OCT data and the second OCT data, a first OCT front image based on the first OCT data and a second OCT front image based on the second OCT data are generated,
By performing a second process different from the first process on the first OCT data and the second OCT data, a third OCT front image based on the first OCT data, a fourth OCT front image based on the second OCT data, and Image generating means for generating
Wherein the first image position information first 1OCT a relative position information of the front image and the second 2OCT front image, the second image is the relative position information between the first 4OCT front image and the second 3OCT front image Position information is acquired by image analysis, and based on the acquired first image position information and second image position information, relative position information between the first OCT data and the second OCT data. An OCT signal processing apparatus comprising: an arithmetic control unit that calculates data position information.

The image generation means is an OCT front image generated by processing the first OCT data and an OCT generated by processing the second OCT data based on the data position information calculated by the calculation control means. The OCT signal processing apparatus according to claim 1, wherein a combined front image is generated by combining a plurality of OCT front images by aligning the front images.

The first process is a process of generating the first OCT front image and the second OCT front image based on the first OCT data and the second OCT data in a first depth region,
The second process generates the third OCT front image and the fourth OCT front image based on the first OCT data and the second OCT data in a second depth region different from the first depth region. The OCT signal processing apparatus according to claim 1 or 2, wherein

It said image generation means, the first 1OCT respectively performs segmentation processing on the data and the second 2OCT data, by generating an OCT front image for each layer extracted by the segmentation process, the related first layer first 1OCT front image and to generate a said first 2OCT front image, claims, characterized in that to generate a different second of the first 4OCT front image and the second 3OCT front image for layer with respect to said first depth and layers The OCT signal processing apparatus according to any one of 1 to 3.

An OCT signal processing program executed in the OCT signal processing device, and executed by the processor of the OCT signal processing device,
OCT data acquisition step of acquiring first OCT data and second OCT data in which at least a part of an acquisition area differs from the first OCT data;
By performing a first process on the first OCT data and the second OCT data, a first OCT front image based on the first OCT data and a second OCT front image based on the second OCT data are generated,
By performing a second process different from the first process on the first OCT data and the second OCT data, a third OCT front image based on the first OCT data, a fourth OCT front image based on the second OCT data, and An image generation step for generating
First image position information, which is relative position information between the first OCT front image and the second OCT front image, and a second image, which is relative position information between the third OCT front image and the fourth OCT front image. Position information is acquired by image analysis, and based on the acquired first image position information and second image position information, relative position information between the first OCT data and the second OCT data. An OCT signal processing program that causes the OCT signal processing device to execute a calculation control step for calculating data position information.