JP2017029290A5 - - Google Patents
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- JP2017029290A5 JP2017029290A5 JP2015150699A JP2015150699A JP2017029290A5 JP 2017029290 A5 JP2017029290 A5 JP 2017029290A5 JP 2015150699 A JP2015150699 A JP 2015150699A JP 2015150699 A JP2015150699 A JP 2015150699A JP 2017029290 A5 JP2017029290 A5 JP 2017029290A5
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- 238000003672 processing method Methods 0.000 claims 4
- 238000003384 imaging method Methods 0.000 claims 3
- 201000010099 disease Diseases 0.000 claims 1
- 230000003902 lesions Effects 0.000 claims 1
Claims (10)
第一方向に直交する複数の二次元断面画像の積み重ねからなる、被検者の計算用医用画像に対する注目点から、前記第一方向の注目範囲を特定する注目範囲特定部と、
前記第一方向の注目範囲に対して、前記第一方向の非注目範囲よりも高い解像度を持つ、三次元の読影用医用画像を生成する読影用医用画像生成部と、を備え、
前記注目範囲特定部は、
前記第一方向の注目範囲を算出する算出部と、前記第一方向における二次元断面画像間の類似度を示す第一方向類似度の算出式と、前記第一方向類似度の基準範囲とを記憶する記憶部を有し、
前記注目点が存在する前記二次元断面画像上で、前記注目点の周囲の画素の輝度値分布から二次元注目範囲を算出し、
前記二次元注目範囲に基づき、前記記憶部から得られる前記算出式にて算出する前記第一方向類似度と、前記記憶部から得られる前記基準範囲を参照して、前記第一方向の注目範囲を特定し、
前記読影用医用画像生成部は、
前記第一方向の注目範囲に対して、前記第一方向の非注目範囲よりも高い解像度を持つ、前記三次元の読影用医用画像を生成する、
ことを特徴とする画像処理装置。 An image processing apparatus,
An attention range specifying unit for specifying an attention range in the first direction, from a point of interest for a medical image for calculation of a subject, comprising a stack of a plurality of two-dimensional cross-sectional images orthogonal to the first direction,
An interpretation medical image generation unit that generates a three-dimensional interpretation medical image with a higher resolution than the non-attention range in the first direction with respect to the attention range in the first direction;
The attention range specifying part is:
A calculation unit for calculating the attention range in the first direction, a calculation formula for a first direction similarity indicating a similarity between two-dimensional cross-sectional images in the first direction, and a reference range for the first direction similarity. A storage unit for storing;
On the two-dimensional cross-sectional image in which the attention point exists, a two-dimensional attention range is calculated from a luminance value distribution of pixels around the attention point ;
Based on the two-dimensional attention range, referring to the first direction similarity calculated by the calculation formula obtained from the storage unit and the reference range obtained from the storage unit , the attention range of the first direction to identify,
The interpretation medical image generation unit
Generating the three-dimensional interpretation medical image having a higher resolution than the non-attention range in the first direction with respect to the attention range in the first direction ;
An image processing apparatus.
前記読影用医用画像生成部は、三次元医用画像撮影装置によって検出したｒａｗデータから、前記読影用医用画像を生成する、
ことを特徴とする画像処理装置。 The image processing apparatus according to claim 1,
The interpretation medical image generation unit generates the interpretation medical image from raw data detected by a three-dimensional medical image photographing device.
An image processing apparatus.
前記計算用医用画像は、前記第一方向の注目範囲の前記解像度と同じかそれよりも高い解像度によって予め生成され、
前記読影用医用画像生成部は、予め生成された前記計算用医用画像から前記読影用医用画像を生成する、
ことを特徴とする画像処理装置。 The image processing apparatus according to claim 1,
The computational medical image is generated in advance with a resolution equal to or higher than the resolution of the range of interest in the first direction;
The interpretation medical image generation unit generates the interpretation medical image from the calculation medical image generated in advance .
An image processing apparatus.
前記注目範囲特定部は、前記二次元注目範囲を算出する第２算出部と、前記二次元断面画像の特徴量の算出式と前記特徴量の基準範囲とを記憶する第２記憶部を有し、
前記第２算出部は、前記注目点が存在する前記二次元断面画像において、前記第２記憶部から得られる前記算出式で算出する特徴量と、前記第２記憶部から得られる前記基準範囲を参照して前記二次元注目範囲を特定する、
ことを特徴とする画像処理装置。 The image processing apparatus according to claim 1 ,
The attention range specifying unit includes a second calculation unit that calculates the two-dimensional attention range, and a second storage unit that stores a calculation formula for the feature amount of the two-dimensional cross-sectional image and a reference range of the feature amount. ,
The second calculation unit includes a feature amount calculated by the calculation formula obtained from the second storage unit and the reference range obtained from the second storage unit in the two-dimensional cross-sectional image in which the attention point exists. Identify the two-dimensional attention range with reference to ,
An image processing apparatus.
前記計算用医用画像に対する前記注目点を特定する特定部を更に備え、
前記特定部は、前記計算用医用画像の各画素の周囲の画素分布から特徴量を算出する算出式と、前記特徴量のとり得る値の範囲である特徴量基準範囲とを記憶する第３記憶部を有し、
前記特定部は、前記第３記憶部から得られる前記算出式により求められる前記特徴量と、前記第３記憶部から得られる前記基準範囲とを参照して、一点以上の注目点を特定する、
ことを特徴とする画像処理装置。 The image processing apparatus according to claim 1 ,
A specifying unit for specifying the point of interest for the medical image for calculation;
The specifying unit stores a calculation formula for calculating a feature amount from a pixel distribution around each pixel of the medical image for calculation, and a feature amount reference range that is a range of values that the feature amount can take. Part
The specifying unit specifies one or more attention points with reference to the feature amount obtained from the calculation formula obtained from the third storage unit and the reference range obtained from the third storage unit ;
An image processing apparatus.
前記第３記憶部に記憶される前記基準範囲は、疾病の種類を同じくする病変疑い箇所を注目領域として、撮影条件、撮影機器仕様を同じくする撮影装置により撮影されたテスト医用画像群とそれに対する読影結果から定められる、
ことを特徴とする画像処理装置。 The image processing apparatus according to claim 5 ,
The reference range stored in the third storage unit is a group of test medical images captured by an imaging device having the same imaging conditions and imaging device specifications, with a lesion suspected portion having the same type of disease as a region of interest, and correspondingly Determined from the interpretation results ,
An image processing apparatus.
前記画像処理装置は、
第一方向に直交する複数の二次元断面画像の積み重ねからなる被検者の計算用医用画像に対し、注目点が存在する前記二次元断面画像上で二次元注目範囲を算出し、
前記二次元注目範囲に基づき、記憶する前記第一方向における二次元断面画像間の類似度を示す第一方向類似度の算出式と、記憶する前記第一方向類似度の基準範囲を参照して前記第一方向の注目範囲を特定し、
前記第一方向の注目範囲に対して、前記第一方向の非注目範囲よりも高い解像度を持つ、三次元の読影用医用画像を生成する、
ことを特徴とする画像処理方法。 An image processing method in an image processing apparatus,
The image processing apparatus includes:
For a medical image for calculation of a subject consisting of a stack of a plurality of two-dimensional cross-sectional images orthogonal to the first direction, calculate a two-dimensional attention range on the two-dimensional cross-sectional image where the point of interest exists,
Based on the two-dimensional attention range, referring to the calculation formula for the first direction similarity indicating the similarity between the two-dimensional cross-sectional images in the first direction to be stored, and the reference range of the first direction similarity to be stored Identify a range of interest in the first direction;
Generating a three-dimensional medical image for interpretation with a higher resolution than the non-attention range in the first direction with respect to the attention range in the first direction ;
An image processing method.
前記画像処理装置は、前記注目点が存在する前記二次元断面画像上で、前記注目点の周囲の画素の輝度値分布から前記二次元注目範囲を算出する、
ことを特徴とする画像処理方法。 The image processing method according to claim 7, comprising:
The image processing device calculates the two-dimensional attention range from a luminance value distribution of pixels around the attention point on the two-dimensional cross-sectional image where the attention point exists.
An image processing method .
前記画像処理装置を、
第一方向に直交する複数の二次元断面画像の積み重ねからなる被検者の計算用医用画像に対し、注目点が存在する前記二次元断面画像上で二次元注目範囲を算出し、
前記二次元注目範囲に基づき、記憶する前記第一方向における二次元断面画像間の類似度を示す第一方向類似度の算出式と、記憶する前記第一方向類似度の基準範囲を参照して前記第一方向の注目範囲を特定し、
前記第一方向の注目範囲に対して、前記第一方向の非注目範囲よりも高い解像度を持つ、三次元の読影用医用画像を生成する、よう実行させる、
ことを特徴とする画像処理プログラム。 An image processing program in an image processing apparatus,
The image processing apparatus;
For a medical image for calculation of a subject consisting of a stack of a plurality of two-dimensional cross-sectional images orthogonal to the first direction, calculate a two-dimensional attention range on the two-dimensional cross-sectional image where the point of interest exists,
Based on the two-dimensional attention range, referring to the calculation formula for the first direction similarity indicating the similarity between the two-dimensional cross-sectional images in the first direction to be stored, and the reference range of the first direction similarity to be stored Identify a range of interest in the first direction;
Generating a three-dimensional interpretation medical image having a higher resolution than the non-attention range in the first direction with respect to the attention range in the first direction.
An image processing program characterized by that .
前記画像処理装置を、
前記注目点が存在する前記二次元断面画像上で、前記注目点の周囲の画素の輝度値分布から前記二次元注目範囲を算出する、よう実行させる、
ことを特徴とする画像処理プログラム。 An image processing program according to claim 9,
The image processing apparatus;
Calculating the two-dimensional attention range from the luminance value distribution of pixels around the attention point on the two-dimensional cross-sectional image where the attention point exists;
An image processing program characterized by that .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015150699A JP6424147B2 (en) | 2015-07-30 | 2015-07-30 | Image processing apparatus, method, and program |
| PCT/JP2016/070851 WO2017018230A1 (en) | 2015-07-30 | 2016-07-14 | Image processing device, method, and program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015150699A JP6424147B2 (en) | 2015-07-30 | 2015-07-30 | Image processing apparatus, method, and program |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2017029290A JP2017029290A (en) | 2017-02-09 |
| JP2017029290A5 true JP2017029290A5 (en) | 2018-01-18 |
| JP6424147B2 JP6424147B2 (en) | 2018-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2015150699A Active JP6424147B2 (en) | 2015-07-30 | 2015-07-30 | Image processing apparatus, method, and program |
Country Status (2)
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| JP (1) | JP6424147B2 (en) |
| WO (1) | WO2017018230A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4253055B2 (en) * | 1998-04-27 | 2009-04-08 | 東芝医用システムエンジニアリング株式会社 | Computer-aided diagnosis device |
| JP2004113730A (en) * | 2002-09-25 | 2004-04-15 | Terarikon Inc | Computer-aided diagnosis system |
| JP5105584B2 (en) * | 2007-04-12 | 2012-12-26 | 富士フイルム株式会社 | Target area display device and program |
| JP2009018048A (en) * | 2007-07-12 | 2009-01-29 | Fujifilm Corp | Medical image display, method and program |
| JP2013126492A (en) * | 2011-12-19 | 2013-06-27 | Canon Inc | Reading apparatus and method for controlling the same |
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- 2015-07-30 JP JP2015150699A patent/JP6424147B2/en active Active
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