JPH01207032A - Endoscopic apparatus - Google Patents

Endoscopic apparatus

Info

Publication number
JPH01207032A
JPH01207032A JP63031912A JP3191288A JPH01207032A JP H01207032 A JPH01207032 A JP H01207032A JP 63031912 A JP63031912 A JP 63031912A JP 3191288 A JP3191288 A JP 3191288A JP H01207032 A JPH01207032 A JP H01207032A
Authority
JP
Japan
Prior art keywords
light
light source
area
photometric
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63031912A
Other languages
Japanese (ja)
Inventor
Yasuo Sato
康生 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP63031912A priority Critical patent/JPH01207032A/en
Publication of JPH01207032A publication Critical patent/JPH01207032A/en
Pending legal-status Critical Current

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  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)

Abstract

PURPOSE:To control the quantity of light of a light source so as to make a specific region easiest to look, by mounting an automatic quantity-of-light controller (ALC) for sending out a quantity-of-light correction order signal for keeping the brightness of a photometric region constant to the quantity-of-light control part of the light source upon the reception of the photometric region component of the image signal extracted by a data selection means. CONSTITUTION:The light of a light source 3 illuminates the body cavity of an examinee and the reflected light from said body cavity is received by a solid-state image sensing element 5 to be converted to an electric signal which is, in turn, converted to an image signal by a camera control unit 6 to be sent out to an apparatus main body 1. In the apparatus main body 1, the image signal is subjected to display processing by a digital scanning converter(DSC) 7 and a region to be observed is displayed on the display picture of a CRT 8 as an image. In the DSC 7, the image signal from a scope 2 is integrated and the integration result is sent out to the ALC 11. A reference level for preliminarily keeping the brightness of the display picture of the CRT 8 constant is set to the ALC 11 and compared with the photometric level from the DSC 7 to send out a quantity-of-light correction order signal to a light source control part 12. The light source control part 12 performs the supply of power, which secures definite brightness on the display picture of the CRT 8, to the light source 3.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、被検体の体腔内を照明しながら観測部位を撮
影し、撮影された観察部位を表示画面上に画像表示する
一内視鏡装置に関し、特に照明光量を自動調整する技術
の改良に関する。
[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention involves photographing an observation region while illuminating the inside of a body cavity of a subject, and displaying an image of the photographed observation region on a display screen. The present invention relates to an endoscope device, and particularly to improvements in technology for automatically adjusting the amount of illumination light.

(従来の技術) 一般に従来のこの秤の内視鏡装置は、スコープ先端部に
設けた固体1m ’S N子により照明反0−f光を受
光して電気信号に変換し、この変換出力を信号処理して
得られた映像信号を曇に、観察部位を表示画面上に画像
表示するようになされている5更に、表示画面の明るさ
を一定に保つために、観測部位の明るさに応じて照明光
量を自動的に制御する自動光量コントローラ(以下A 
L Cという)を備えたものとされている。
(Prior Art) Generally, the conventional endoscope device of this scale receives the illumination anti-0-f light by a solid 1m'S N element provided at the tip of the scope, converts it into an electrical signal, and converts this converted output into an electric signal. The video signal obtained by signal processing is displayed as an image of the observed area on the display screen. Automatic light amount controller (hereinafter referred to as A) that automatically controls the amount of illumination light using
LC).

しかしながら、従来の場合においては、A I−Cは、
固定的に表示画面上の観察部位を測光して17られる測
光レベルに従って照明光量を自動調整する構成とされて
いたため、表示画面上の観察部(ηの特定領域が暗くて
見づらいとぎにも、その特定領域を見やすい明るさにす
ることができなかった。
However, in the conventional case, A I-C is
Since the structure was such that the amount of illumination light was automatically adjusted according to the photometric level determined by photometry of the observation area on the display screen, even if the observation area (η) on the display screen is dark and difficult to see, It was not possible to make the brightness of a specific area easy to see.

(発明が解決しようとする課題) 即ち、従来のこの種の内視鏡装置の場合においては、測
光方式として、表示画像全面にわたる平均測光、ピーク
測光及び定点測光またはそれらの組合せによる固定的な
測光方式を採用している。
(Problems to be Solved by the Invention) In other words, in the case of conventional endoscope devices of this type, the photometry method is fixed photometry using average photometry, peak photometry, and fixed-point photometry over the entire display image, or a combination thereof. method is adopted.

そして、平均測光方式では、光量ピークが存在している
場合に、その光量ピークが平均化されて測光されるから
、観察部位の暗い領域が常に暗い状態に維持される。
In the average photometry method, when a light amount peak exists, the light amount peak is averaged and photometered, so that the dark region of the observed region is always maintained in a dark state.

ピーク測光では、vA京部位の暗い領域が測光対象とし
て無視されるので、その昭い領域がやはり常に暗い状態
に維持される。
In peak photometry, the dark region of the vA region is ignored as a photometric target, so the dark region is always maintained in a dark state.

定点測光では、測光位置が固定されているため、観察領
域の暗い領域が体腔動作で動いて測光位置から外れると
、その暗い領域を測光したことにならないから、所望の
暗い領域について明るくすることを実質的に行なえない
In fixed-point photometry, the photometry position is fixed, so if a dark area in the observation area moves due to body cavity movement and deviates from the photometry position, that dark area will not have been photometered. Practically impossible.

このように、従来のこの種の内視鏡装置の場合には、表
示画面上の観察部位の暗い領域を明るくして鮮明に表示
することができなかった。
As described above, in the case of the conventional endoscope apparatus of this type, it has not been possible to brighten and clearly display the dark area of the observation site on the display screen.

なお、AGC,ALCなどによる映像信号の利得制御方
式では、映像の深みがなくなり、従って、例え表示両面
上の観察部位の暗い領域を明るくすることができても、
その明るくされた暗い領域の画像精度が著しく低下する
ことになる。
Note that with the gain control method of the video signal using AGC, ALC, etc., the depth of the video is lost, so even if it is possible to brighten the dark area of the observation site on both sides of the display,
The image accuracy of the brightened dark areas will be significantly reduced.

本発明は、係る課題に名みてなされたもので、その目的
とするところは、表示画面上の特定領域を指定して、当
該特定領域が最も見やすくなるように光源の光量を制御
することができる内?J1 鏡装置を提供することにあ
る。
The present invention has been made in view of the above problem, and its purpose is to specify a specific area on a display screen and control the amount of light from a light source so that the specific area is most visible. Inside? J1 To provide a mirror device.

[発明の構成] (課題をwI決するための手段) 本発明は、上記の目的を達成するため、被検体の体腔内
に導入されたスコープにより、光源からの反射光で照明
しながら観察部位を撮影し、撮影内容から得られる信号
を基に、前記観察部位を表示画面上に画像表示する内視
鏡装置において、前記表示画面上に画像表示される前記
観察部位について測光領域の座標を前記表示画面上で指
定する領域指定手段と、この領域指定手段が示す座標内
容に応答して前記映像信号の測光領域成分を抽出するデ
ータ抽出手段と、このデータ選択手段により抽出される
前記映像信号の測光領域成分を受【ノで前記測光領域の
明るさを一定に保つための光量補正指令信号を前記光源
の光量制御部へ送出するALCとを具備することを要旨
としている。
[Structure of the Invention] (Means for solving the problem) In order to achieve the above-mentioned object, the present invention aims to illuminate the observation area with reflected light from a light source using a scope introduced into the body cavity of the subject. In an endoscope device that performs imaging and displays an image of the observed region on a display screen based on a signal obtained from the photographed content, the coordinates of a photometric region are displayed for the observed region displayed as an image on the display screen. an area specifying means for specifying on a screen, a data extraction means for extracting a photometric area component of the video signal in response to the coordinate contents indicated by the area specifying means, and photometry of the video signal extracted by the data selection means. The gist of the present invention is to include an ALC that receives area components and sends a light amount correction command signal for keeping the brightness of the photometric area constant to a light amount controller of the light source.

(作用) 本発明による内視鏡装置であれば、表示画面上に画像表
示される7a測部位について測光領域を表示画面上で座
標指定後、この座標指定に対応される撮像信号の測光領
域成分をALCへ送出することになるから、ALCから
光量補正指令信号を受けた光量制御部によって、測光領
域が最も見やすい明るさとなる放射元旦を光源で得るこ
とができる。
(Function) In the endoscope apparatus according to the present invention, after specifying the coordinates of the photometry area for the measurement site 7a displayed as an image on the display screen, the photometry area component of the imaging signal corresponding to the coordinate specification is sent to the ALC, so that the light intensity control unit that receives the light intensity correction command signal from the ALC can obtain the radiant light at which the photometric area is the brightest to see at the light source.

(実施例) 第1図は、本発明が適用された内視鏡装置の一実施例の
要部概略を示すブロック図である。
(Embodiment) FIG. 1 is a block diagram schematically showing the main parts of an embodiment of an endoscope apparatus to which the present invention is applied.

この一実施例の内?51鏡装置は、装置本体1に対し、
スコープ2を着脱自在に構成している。
Of this one example? 51 mirror device, for the device main body 1,
The scope 2 is configured to be detachable.

スコープ2は、装置本体1の光源3から発ぜられた光を
スコープ先端部2aまでライトガイド4により導く。そ
して、このライトガイド4により導かれた光源3からの
光を基に、被検体の体腔内(不図示)を照明し、観測部
位からの照明反射光をスコープ先端部2aの固体層像素
子5で受光して電気信号に変換し、この電気信号をカメ
ラコントロールユニット(CCU)6で映像信号に変換
して装着本体1に送出する。
The scope 2 guides light emitted from the light source 3 of the apparatus main body 1 to the scope tip 2a by a light guide 4. Then, based on the light from the light source 3 guided by the light guide 4, the inside of the body cavity of the subject (not shown) is illuminated, and the illumination reflected light from the observation site is transmitted to the solid-state image element 5 of the scope tip 2a. The camera control unit (CCU) 6 receives the light and converts it into an electric signal, and the camera control unit (CCU) 6 converts the electric signal into a video signal and sends it to the mounting body 1.

装置本体1では、CCU6から受けた映像信号をディジ
タルスキャンコンバータ(DSC)7で表示処理し、こ
の表示処理に対応するようにCRT8の表示画面上に観
測部位を画像表示することになる。
In the apparatus main body 1, the video signal received from the CCU 6 is subjected to display processing by a digital scan converter (DSC) 7, and an image of the observed region is displayed on the display screen of the CRT 8 in accordance with this display processing.

更に、CRT8の表示画面の明るさを調整するために、
′3A置装体1には、キーボード9と、コントローラ1
0と、ALCl 1と、光源制御部12とを備え、また
CRT8の表示画面上には第2図に示す如く水平方向カ
ーソル8aと垂直方向カーソル8bとを画像表示領域の
縁部近傍に表示するものとされている。
Furthermore, to adjust the brightness of the CRT8 display screen,
'3A The device body 1 includes a keyboard 9 and a controller 1.
0, ALCl 1, and a light source control section 12, and on the display screen of the CRT 8, as shown in FIG. 2, a horizontal cursor 8a and a vertical cursor 8b are displayed near the edge of the image display area. It is considered a thing.

キーボード9は、jj−ツルスイッチ9aが設けられて
おり、このカーソルスイッチ9aを操作することにより
、観測部位について測光領域の座標を、CRT8の表示
両面上で行なえる。
The keyboard 9 is provided with a jj-cursor switch 9a, and by operating this cursor switch 9a, the coordinates of the photometric area for the observation site can be determined on both display surfaces of the CRT 8.

コントローラ10は、キーボード9のカーソルスイッチ
9aにより座標指定操作がなされたとき、DSC7に対
し、スコープ2からの映像信号について測光領域成分を
マスキングする旨の指令信号を送出するようになされて
いる。
The controller 10 is configured to send a command signal to the DSC 7 to mask the photometric area component of the video signal from the scope 2 when a coordinate designation operation is performed using the cursor switch 9a of the keyboard 9.

そのため、DSC7において、コントローラ10から送
られてきた測光irt域についてスコープ2からの吹酸
信号が積分され、この積分結果がDSC7よりALC1
1へ送出されることになる。
Therefore, in the DSC 7, the blowing acid signal from the scope 2 is integrated in the photometric irt range sent from the controller 10, and this integration result is sent to the ALC1 from the DSC 7.
It will be sent to 1.

八L C11は、予めCRT8の表示画面の明るさを一
定に保つための基準レベルが設定されており、この基準
レベルとDSC7よりの積分結果が示す測光レベルとを
比較し、例えば測光レベルが表示画面の明るさが一定の
明るさよりも暗い内容を示すとき、この内容が打消すべ
く光量補正指令信号を光源制御部12へ送出する。
8L C11 has a reference level set in advance to keep the brightness of the display screen of CRT8 constant, and compares this reference level with the photometry level indicated by the integration result from DSC7, and displays the photometry level, for example. When the brightness of the screen indicates content that is darker than a certain brightness, a light amount correction command signal is sent to the light source control unit 12 in order to cancel this content.

そのため、光源制御部12は、光源31に対し、CRT
8の表示画面上に画像表示される観測部位について一定
の明るさが確保される放射光消を(qるのに必要な電ツ
ノ供給を行なうことになる。
Therefore, the light source control unit 12 controls the light source 31 to
The electric power necessary to extinguish the radiation light to ensure a constant brightness for the observation site whose image is displayed on the display screen 8 will be supplied.

このようなことから、本発明の一実施例の内視鏡装置で
あれば、測光領域が最も見やすい明るさとなる放射光敏
を光源3で得られる。
For this reason, in the endoscope apparatus according to the embodiment of the present invention, the light source 3 can obtain a radiation sensitivity that makes the photometric region most easily visible.

[発明の効梁] 以上説明したように、本発明が適用された内視鏡装置は
、表示両面上で測光領域を座標指定し、この座標指定さ
れた測光領域に対応する映像信号の成分をALCに送出
する条件下で、ALCにより光源の敢射光吊を制御する
から、表示画面上の測光した領域が最も児や1い状rぷ
になった。
[Effects of the Invention] As described above, the endoscope apparatus to which the present invention is applied specifies the coordinates of a photometric area on both display surfaces, and calculates the component of the video signal corresponding to the photometric area with the specified coordinates. Under the conditions of sending the light to the ALC, the ALC controls the intensity of the light emitted by the light source, so that the area where the light was measured on the display screen was the most compact.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明が適用された内視鏡装置の一実施例の要
部概略を示すブロック図、第2図はCRTの表示画面上
の様子を模式的に示す状態説明図である。 1・・・装置本体 2・・・スコープ 3・・・光源 4・・・ライトガイド 5・・・固体撮像素子 6・・・CCU 7・・・SC 8・・・CRT 9・・・キーホード 10・・・コントローラ 11・・・ALC 12・・・光源制御部
FIG. 1 is a block diagram schematically showing essential parts of an embodiment of an endoscope apparatus to which the present invention is applied, and FIG. 2 is a state explanatory diagram schematically showing the state on a CRT display screen. 1... Device body 2... Scope 3... Light source 4... Light guide 5... Solid-state image sensor 6... CCU 7... SC 8... CRT 9... Keychain 10 ...Controller 11...ALC 12...Light source control section

Claims (1)

【特許請求の範囲】[Claims] (1)被検体の体腔内に導入されるスコープにより、光
源からの放射光で照明しながら観察部位を撮影し、撮影
内容から得られる映像信号を基に、前記観察部位を表示
画面上に画像表示する内視鏡装置において、 前記表示画面上に画像表示される前記観察部位について
測光領域の座標を前記表示両面上で指定する領域指定手
段と、この領域指定手段が示す座標内容に応答して前記
映像信号の測光領域成分を抽出するデータ選択手段と、
このデータ選択手段で抽出される前記映像信号の測光領
域成分を受けて前記測光領域の明るさを一定に保つため
の光量補正指令信号を前記光源の光量制御部へ送出する
自動光量コントローラとを具備することを特徴とする内
視鏡装置。
(1) A scope introduced into the body cavity of the subject photographs the observed area while illuminating it with synchrotron radiation from a light source, and displays an image of the observed area on the display screen based on the video signal obtained from the photographed content. In the displaying endoscope apparatus, an area specifying means for specifying the coordinates of a photometric area on both sides of the display for the observation site whose image is displayed on the display screen; data selection means for extracting photometric area components of the video signal;
an automatic light amount controller that receives the photometric area component of the video signal extracted by the data selection means and sends a light amount correction command signal to the light amount control unit of the light source to keep the brightness of the photometric area constant. An endoscope device characterized by:
JP63031912A 1988-02-16 1988-02-16 Endoscopic apparatus Pending JPH01207032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63031912A JPH01207032A (en) 1988-02-16 1988-02-16 Endoscopic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63031912A JPH01207032A (en) 1988-02-16 1988-02-16 Endoscopic apparatus

Publications (1)

Publication Number Publication Date
JPH01207032A true JPH01207032A (en) 1989-08-21

Family

ID=12344190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63031912A Pending JPH01207032A (en) 1988-02-16 1988-02-16 Endoscopic apparatus

Country Status (1)

Country Link
JP (1) JPH01207032A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005107573A1 (en) * 2004-05-10 2005-11-17 Olympus Corporation Encapsulated endoscope and encapsulated endoscope system
JP2011027997A (en) * 2009-07-24 2011-02-10 Olympus Corp Endoscope apparatus, measuring method, and program

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005107573A1 (en) * 2004-05-10 2005-11-17 Olympus Corporation Encapsulated endoscope and encapsulated endoscope system
CN100450423C (en) * 2004-05-10 2009-01-14 奥林巴斯株式会社 Encapsulated endoscope and encapsulated endoscope system
US7762947B2 (en) 2004-05-10 2010-07-27 Olympus Corporation Capsule endoscope and capsule endoscope system
JP2011027997A (en) * 2009-07-24 2011-02-10 Olympus Corp Endoscope apparatus, measuring method, and program
US9157728B2 (en) 2009-07-24 2015-10-13 Olympus Corporation Endoscope apparatus and method

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