JP6250257B1 - 内視鏡装置 - Google Patents
内視鏡装置 Download PDFInfo
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- JP6250257B1 JP6250257B1 JP2017554421A JP2017554421A JP6250257B1 JP 6250257 B1 JP6250257 B1 JP 6250257B1 JP 2017554421 A JP2017554421 A JP 2017554421A JP 2017554421 A JP2017554421 A JP 2017554421A JP 6250257 B1 JP6250257 B1 JP 6250257B1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
- A61B1/000095—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope for image enhancement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00043—Operational features of endoscopes provided with output arrangements
- A61B1/00045—Display arrangement
- A61B1/0005—Display arrangement combining images e.g. side-by-side, superimposed or tiled
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00096—Optical elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00193—Optical arrangements adapted for stereoscopic vision
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00194—Optical arrangements adapted for three-dimensional imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/045—Control thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2415—Stereoscopic endoscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2423—Optical details of the distal end
- G02B23/243—Objectives for endoscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
- G02B23/2484—Arrangements in relation to a camera or imaging device
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/80—Geometric correction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
- H04N13/359—Switching between monoscopic and stereoscopic modes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/61—Noise processing, e.g. detecting, correcting, reducing or removing noise the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/04—Indexing scheme for image data processing or generation, in general involving 3D image data
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
- G06T2207/10012—Stereo images
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10068—Endoscopic image
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20004—Adaptive image processing
- G06T2207/20008—Globally adaptive
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Theoretical Computer Science (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Stereoscopic And Panoramic Photography (AREA)
- Lenses (AREA)
- Closed-Circuit Television Systems (AREA)
- Geometry (AREA)
Abstract
Description
0.1<B/A<0.8、かつ、A<0 (1)
ここで、
Aは、2D観察時の最大像高のディストーション、
Bは、3D観察時の最大像高のディストーション、
である。
0.1<B/A<0.8、かつ、A<0 (1)
ここで、
Aは、2D観察時の最大像高のディストーション、
Bは、3D観察時の最大像高のディストーション、
である。
スクリーニングにおいては、広画角の視野で、病変を見落とさないことが重要となる。そのためには、図4に示すように、大きな負のディストーションを有する光学系を使うことが一般的である。また、スクリーニングでは物体距離が遠くなる場合があるため、3D観察では十分な立体感を得られない場合がある。よって、スクリーニングでは広角の2D観察で、広角な範囲を観察する必要がある。
0.1<B/A<0.8、かつ、A<0 (1)
ここで、
Aは、2D観察時の最大像高のディストーション、
Bは、3D観察時の最大像高のディストーション、
である。
0.6<D/C≦1、かつ、100度<C (2)
ここで、
Cは、2D観察時の最大画角、
Dは、3D観察時の最大画角、
である。
Y=E×X3+F×X2+G×X+H (3)
Xの最大値において、0.4<Y<0.8であり、
Xは、画像処理前の像高、
Yは、(画像処理前の像高)/(画像処理後の像高)、
E、F、G、Hは、係数、
である。
−0.7<B<−0.1 (4)
ここで、
Bは、3D観察時の最大像高のディストーション、
である。
初めに、後述する実施例1から実施例5に共通する対物光学系について説明する。
単位 mm
面データ
面番号 r d nd νd
1 ∞ 0.2500 1.88815 40.76
2 0.5920 0.5700
3 -4.5711 0.8554 1.85504 23.78
4 -3.3786 0.1100
5 ∞ 0.4000 1.49557 75.00
6 ∞ 0.1000
7(S) ∞ 0.1016
8 7.9475 0.7436 1.83932 37.16
9 -1.8802 0.3135
10(FS) ∞ 0.0000
11 1.3149 0.7438 1.69979 55.53
12 -0.8298 0.3347 1.93429 18.90
13 -5.6819 0.2635
14 ∞ 0.5000 1.51825 64.14
15 ∞ 0.3500 1.50700 63.26
撮像面 ∞
全系焦点距離f1 0.4249
視差 1mm
補正式 Y
実施例1、2
A Y=−1.1583X3−1.1544X2−0.0069X+1.0021
実施例3、4、5
B Y=−5.1946X3−0.186X2−0.2106X+1.0081
DT DT DT 画角(度) 画角(度) 画角(度) 補正式
2D観察 3D観察(補正後) 2D観察 3D観察時 3D観察時
A B B/A C D D/C Y
実施例1 -84.8% -45.7% 0.54 163.7 134.9 0.82 A
実施例2 -84.8% -62.3% 0.73 163.7 150.8 0.92 A
実施例3 -84.8% -10.0% 0.12 163.7 99.98 0.61 B
実施例4 -84.8% -28.6% 0.34 163.7 134.9 0.82 B
実施例5 -84.8% -67.1% 0.79 163.7 163.7 1.00 B
計算データ
2D観察 3D観察 3D観察 3D観察 3D観察 3D観察
像高 像高 像高 像高 DT 画角
補正前 補正後 逆倍率 補正前 補正前
Y H
実施例1 0.43 0.4 0.54 0.7407407 -59.80% 134.9
実施例2 0.43 0.42 0.593 0.7082631 -73.30% 150.8
実施例3 0.43 0.33 0.45 0.7333333 -34.00% 99.98
実施例4 0.43 0.4 0.71 0.5633803 -59.80% 134.9
実施例5 0.43 0.43 0.93 0.4623656 -84.80% 163.7
DT補正前のディストーション定義
(|I´|−|β×I|)/|β×I|=H (AA)
ここで、
Iは、物体面における物体高、
I´は、撮像面(CCD面)における像高、
βは、前記物体(物体高I)を撮影したときの、横倍率、
である。
(|I´/Y|−|β×I|)/|β×I|=B (BB)
ここで、
Iは、物体面における物体高、
I´は、撮像面(CCD面)における像高、
βは、前記物体(物体高I)を撮影したときの、横倍率、
Yは、補正前像高/補整後像高、
である。
そして、上記式(AA)と式(BB)より、次式を得られる。
|I´|=(H+1)×|β×I|
B=(H+1)/Y−1
2 電子内視鏡
3 光源装置
4 画像処理部
5 モニタ
5a モニタ面
10 先端硬性部
11R 右眼用光学系
11L 左眼用光学系
12 撮像素子
13 処置具
21 挿入部
22 操作部
23 ユニバーサルコード
24 コネクタ部
25 接続コード
26 電気コネクタ部
30 被写体空間
40 再生空間
ER 右眼
EL 左眼
S 明るさ絞り
FS フレア絞り
AX1、AX2 光軸
LNS1 第1の光学系
LNS2 第2の光学系
IMG 撮像素子
I 像面(撮像面)
L1〜L5 レンズ
F1、F2、CG 平行平板
OB1 被写体
OB1´ 被写体像
OB2 被写体(物体)
OB2´ 被写体像
Claims (4)
- 平面視用の2D観察と立体視用の3D観察を切り替えられる機能を有する内視鏡装置において、
3D観察時には、当該内視鏡装置の撮像素子で得られた撮像信号に対して撮像光学系のディストーションを低減する処理を行う画像処理部を有し、
前記画像処理部は、以下の条件式(1)を満足する画像処理を行うことを特徴とする内視鏡装置。
0.1<B/A<0.8、かつ、A<0 (1)
ここで、
Aは、2D観察時の最大像高のディストーション、
Bは、3D観察時の最大像高のディストーション、
である。 - 以下の条件式(2)を満足することを特徴とする請求項1に記載の内視鏡装置。
0.6<D/C≦1、かつ、100度<C (2)
ここで、
Cは、2D観察時の最大画角、
Dは、3D観察時の最大画角、
である。 - 前記画像処理部は、以下の式(3)に従って、ディストーションを低減することを特徴とする請求項2に記載の内視鏡装置。
Y=E×X3+F×X2+G×X+H (3)
Xの最大値において、0.4<Y<0.8であり、
Xは、画像処理前の像高、
Yは、(画像処理前の像高)/(画像処理後の像高)、
E、F、G、Hは、係数、
である。 - 以下の条件式(4)を満足することを特徴とする請求項1に記載の内視鏡装置。
−0.7<B<−0.1 (4)
ここで、
Bは、3D観察時の最大像高のディストーション、
である。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016126629 | 2016-06-27 | ||
| JP2016126629 | 2016-06-27 | ||
| PCT/JP2017/019205 WO2018003349A1 (ja) | 2016-06-27 | 2017-05-23 | 内視鏡装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP6250257B1 true JP6250257B1 (ja) | 2017-12-20 |
| JPWO2018003349A1 JPWO2018003349A1 (ja) | 2018-07-12 |
Family
ID=60785406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017554421A Active JP6250257B1 (ja) | 2016-06-27 | 2017-05-23 | 内視鏡装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10552948B2 (ja) |
| EP (1) | EP3476270A4 (ja) |
| JP (1) | JP6250257B1 (ja) |
| CN (1) | CN109068954B (ja) |
| WO (1) | WO2018003349A1 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7048628B2 (ja) | 2016-11-28 | 2022-04-05 | アダプティブエンドウ エルエルシー | 分離可能使い捨てシャフト付き内視鏡 |
| CN112188181B (zh) * | 2019-07-02 | 2023-07-04 | 中强光电股份有限公司 | 图像显示设备、立体图像处理电路及其同步信号校正方法 |
| USD1018844S1 (en) | 2020-01-09 | 2024-03-19 | Adaptivendo Llc | Endoscope handle |
| USD1051380S1 (en) | 2020-11-17 | 2024-11-12 | Adaptivendo Llc | Endoscope handle |
| USD1070082S1 (en) | 2021-04-29 | 2025-04-08 | Adaptivendo Llc | Endoscope handle |
| USD1031035S1 (en) | 2021-04-29 | 2024-06-11 | Adaptivendo Llc | Endoscope handle |
| USD1066659S1 (en) | 2021-09-24 | 2025-03-11 | Adaptivendo Llc | Endoscope handle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0856891A (ja) * | 1994-08-23 | 1996-03-05 | Olympus Optical Co Ltd | 立体視硬性内視鏡 |
| JP2003052057A (ja) * | 2001-08-08 | 2003-02-21 | Hitachi Ltd | 映像変換による立体視映像生成装置 |
| US20150062299A1 (en) * | 2013-08-30 | 2015-03-05 | The Regents Of The University Of California | Quantitative 3d-endoscopy using stereo cmos-camera pairs |
| JP2015220643A (ja) * | 2014-05-19 | 2015-12-07 | 株式会社東芝 | 立体観察装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05323186A (ja) * | 1992-04-08 | 1993-12-07 | Olympus Optical Co Ltd | 内視鏡 |
| DE102010050227A1 (de) * | 2010-11-04 | 2012-05-10 | Siemens Aktiengesellschaft | Endoskop mit 3D-Funktionalität |
| JP2013244362A (ja) * | 2012-05-29 | 2013-12-09 | Olympus Corp | 立体視内視鏡システム |
| JP5818265B2 (ja) | 2012-09-28 | 2015-11-18 | 富士フイルム株式会社 | 立体内視鏡装置 |
| JP6150583B2 (ja) * | 2013-03-27 | 2017-06-21 | オリンパス株式会社 | 画像処理装置、内視鏡装置、プログラム及び画像処理装置の作動方法 |
| WO2014208373A1 (ja) * | 2013-06-26 | 2014-12-31 | オリンパスメディカルシステムズ株式会社 | 内視鏡対物光学系 |
-
2017
- 2017-05-23 JP JP2017554421A patent/JP6250257B1/ja active Active
- 2017-05-23 EP EP17819716.6A patent/EP3476270A4/en not_active Withdrawn
- 2017-05-23 CN CN201780026464.1A patent/CN109068954B/zh active Active
- 2017-05-23 WO PCT/JP2017/019205 patent/WO2018003349A1/ja not_active Ceased
-
2018
- 2018-10-25 US US16/171,232 patent/US10552948B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0856891A (ja) * | 1994-08-23 | 1996-03-05 | Olympus Optical Co Ltd | 立体視硬性内視鏡 |
| JP2003052057A (ja) * | 2001-08-08 | 2003-02-21 | Hitachi Ltd | 映像変換による立体視映像生成装置 |
| US20150062299A1 (en) * | 2013-08-30 | 2015-03-05 | The Regents Of The University Of California | Quantitative 3d-endoscopy using stereo cmos-camera pairs |
| JP2015220643A (ja) * | 2014-05-19 | 2015-12-07 | 株式会社東芝 | 立体観察装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3476270A1 (en) | 2019-05-01 |
| JPWO2018003349A1 (ja) | 2018-07-12 |
| EP3476270A4 (en) | 2020-03-04 |
| CN109068954A (zh) | 2018-12-21 |
| US20190066278A1 (en) | 2019-02-28 |
| WO2018003349A1 (ja) | 2018-01-04 |
| US10552948B2 (en) | 2020-02-04 |
| CN109068954B (zh) | 2021-03-19 |
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