JP2013017619A5

JP2013017619A5 - Ophthalmic image processing apparatus, ophthalmic image processing method, and program for executing the method

Info

Publication number: JP2013017619A5
Application number: JP2011152860A
Authority: JP
Filing date: 2011-07-11
Publication date: 2014-08-28
Anticipated expiration: 2031-07-11

Description

本発明は、眼科診療などに用いられる眼科画像処理装置の画像生成技術に関し、より詳細には、眼科画像処理装置、眼科画像処理方法、及び該方法をコンピュータにより実行させるためのコンピュータプログラムに関する。 The present invention relates to an image generation technique of an ophthalmic image processing apparatus used for ophthalmic medical care and the like, and more particularly to an ophthalmic image processing apparatus, an ophthalmic image processing method, and a computer program for causing the computer to execute the method.

すなわち、複数のボクセルからなる眼部のボリューム画像を取得するボリューム画像取得手段と、前記複数のボクセル内から所定の値を持つ特定のボクセルを検出するボクセル検出手段と、前記ボリューム画像における基点から前記特定のボクセルまでの距離に応じた表示形態の画像を生成する画像生成手段と、を備えることを特徴とする。

That is, a volume image acquisition unit that acquires a volume image of an eye part composed of a plurality of voxels, a voxel detection unit that detects a specific voxel having a predetermined value from the plurality of voxels, and a base point in the volume image Image generating means for generating an image in a display form corresponding to a distance to a specific voxel.

Claims

Volume image acquisition means for acquiring a volume image of an eye part composed of a plurality of voxels;
Voxel detection means for detecting a specific voxel having a predetermined value from the plurality of voxels;
Image generating means for generating an image in a display form according to a distance from a base point in the volume image to the specific voxel;
An ophthalmologic image processing apparatus comprising:

The predetermined value is a maximum luminance value,
The ophthalmic image processing apparatus according to claim 1, wherein the voxel detection unit detects a voxel having the maximum luminance value in a depth direction of the eye part from the base point.

The voxel detection means includes threshold setting means for setting a threshold,
The ophthalmic image processing apparatus according to claim 1, wherein the predetermined value is a luminance value equal to or greater than the threshold value.

A distance calculation means for calculating a distance from the base point to the specific voxel;
The ophthalmic image processing apparatus according to any one of claims 1 to 3, wherein the image generation unit generates an image having a display form corresponding to the calculated distance.

There are a plurality of the specific voxels,
The ophthalmic image processing apparatus according to claim 4 , wherein the distance calculation unit calculates the distance from specific coordinates obtained based on the coordinates of each of the plurality of voxels and the base point.

A layer boundary detection means for detecting a boundary between at least the inner nuclear layer and photoreceptor cells in the outer segment junction of the layer boundary of the eye,
In accordance with the continuity of the photoreceptor cell inner / outer joint joint, a base point setting means for setting the base point on any of the inner granule layer and the photoreceptor inner / outer joint joint ;
Further comprising ophthalmologic image processing apparatus according to any one of claims 1 to 5, characterized in Rukoto a.

The display form ophthalmologic image processing apparatus according to any one of claims 1 to 6, characterized in that at least one mode using the change in the form and shade with a color change.

Volume image acquisition means for acquiring a volume image of an eye part composed of a plurality of voxels;
Voxel detection means for detecting a specific voxel having a predetermined value from the plurality of voxels;
Image generating means for generating an image in a display form according to a distance from a predetermined position in the volume image to the specific voxel;
An ophthalmologic image processing apparatus comprising:

Volume image acquisition means for acquiring a volume image of an eye part composed of a plurality of voxels;
Base point setting means for setting a base point in the volume image;
Image generating means for generating an image in a display form according to a distance from the base point to a voxel having a predetermined value in a plurality of voxels;
An ophthalmologic image processing apparatus comprising:

A volume image acquisition step of acquiring a volume image of an eye part composed of a plurality of voxels;
A voxel detection step of detecting a specific voxel having a predetermined value from the plurality of voxels;
An image generation step of generating an image of a display form according to a distance from a base point in the volume image to the specific voxel;
An ophthalmic image processing method comprising:

The predetermined value is a maximum luminance value,
The ophthalmic image processing method according to claim 10, wherein in the voxel detection step, a voxel having the maximum luminance value in the depth direction of the eye part from the base point is detected .

The voxel detection step includes a threshold setting step for setting a threshold,
The ophthalmic image processing method according to claim 10 or 11, wherein the predetermined value is a luminance value equal to or greater than the threshold value.

A distance calculating means for calculating a distance from the base point to the specific voxel;
The ophthalmic image processing method according to claim 10, wherein in the image generation step, an image having a display form corresponding to the calculated distance is generated.

There are a plurality of the specific voxels,
The ophthalmic image processing method according to claim 13, wherein in the distance calculation step, the distance is calculated from specific coordinates obtained based on the coordinates of each of the plurality of voxels and the base point.

A layer boundary detection step for detecting a boundary between at least the inner granule layer and the photoreceptor inner / outer node junction of the layer boundary of the eye;
A base point setting step for setting the base point on either the inner granule layer or the photoreceptor inner-node outer joint joint, according to the continuity of the inner-node outer joint joint of the photoreceptor cell,
The ophthalmic image processing method according to claim 10, further comprising:

The ophthalmic image processing method according to any one of claims 10 to 15, wherein the display form is at least one of a form using a change in color and a form using a change in shading.

A volume image acquisition step of acquiring a volume image of an eye part composed of a plurality of voxels;
A voxel detection step of detecting a specific voxel having a predetermined value from the plurality of voxels;
An image generation step of generating an image in a display form according to a distance from a predetermined position in the volume image to the specific voxel;
An ophthalmologic image processing method comprising:

A volume image acquisition step of acquiring a volume image of an eye part composed of a plurality of voxels;
A base point setting step for setting a base point in the volume image;
An image generation step of generating an image in a display form according to a distance from the base point to a voxel having a predetermined value in a plurality of voxels;
An ophthalmologic image processing method comprising:

A computer program for causing a computer to execute the ophthalmic image processing method according to any one of claims 10 to 18 .