JPS63157595A - Color tone adjusting device in video signal processing unit for endoscope - Google Patents
Color tone adjusting device in video signal processing unit for endoscopeInfo
- Publication number
- JPS63157595A JPS63157595A JP61305691A JP30569186A JPS63157595A JP S63157595 A JPS63157595 A JP S63157595A JP 61305691 A JP61305691 A JP 61305691A JP 30569186 A JP30569186 A JP 30569186A JP S63157595 A JPS63157595 A JP S63157595A
- Authority
- JP
- Japan
- Prior art keywords
- color
- video signal
- color tone
- chromaticity
- signal processing
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000003086 colorant Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Endoscopes (AREA)
- Closed-Circuit Television Systems (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
Description
【発明の詳細な説明】
Ｃ産業上の利用分野］
本発明は、内視鏡用映像信号処理装置における色調調整
装置、更に詳しくは、内視ｖｌ電子スコープの観察像を
ＴＶのビデオ信号に変え、ＴＶモニタ上で画像表示する
内視鏡用映像信号処理装置における色調調整装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application] The present invention relates to a color tone adjustment device in an endoscope video signal processing device, and more specifically, to a color tone adjustment device for an endoscope video signal processing device, and more specifically, for converting an observed image of an endoscopy VL electronic scope into a TV video signal. , relates to a color tone adjustment device in an endoscope video signal processing device that displays images on a TV monitor.
［従来の技術］
従来、映像信号処理装置を含むＴＶ右カメラ撮像した画
像を、ＴＶモニタに再現する内枳鏡ＴＶシステムにおい
ては、上記画像のオリジナル色を忠実に再現するため、
種々の方法でＴＶモニタ上の画像の色調を調整していた
。即ち、
（１）ＴＶ右カメラ白色を撮像して、この白色を再現す
べく、上記映像信号処理装置あるいはＴＶモニタの色調
調整つまみを手動操作し色調を調整する手段。[Prior Art] Conventionally, in an internal mirror TV system that reproduces an image captured by a TV right camera including a video signal processing device on a TV monitor, in order to faithfully reproduce the original color of the image,
Various methods have been used to adjust the color tone of images on TV monitors. That is, (1) A means for capturing an image of the white color of the TV right camera and adjusting the color tone by manually operating the color tone adjustment knob of the video signal processing device or the TV monitor in order to reproduce this white color.
（２）また、上記映像信号処理装置に自動白色調整機能
があるものては、例えば特開昭５６−３６２９２号公報
、特開昭５８−１９４４８８号公報あるいは特開昭５９
−１７１３９０号公報にて開示されているように、白色
をｍｔｔし、このときのＴＶモニタへの出力信号を所定
の信号にする手段。(2) If the video signal processing device has an automatic white adjustment function, for example, Japanese Patent Laid-Open No. 56-36292, Japanese Patent Laid-Open No. 58-194488, or Japanese Patent Laid-Open No. 59
As disclosed in Japanese Patent Publication No. 171390, a means for converting white color into mtt and converting the output signal to a TV monitor at this time into a predetermined signal.
等である。etc.
そして、この場合のＴＶモニタにおける色調の設定は、
（ｉ）ＰＡＬ方式の複合映像信号、ＲＧＢ映像信号を採
用しているシステムでは、通常市販品のＴＶモニタの外
部で色調調整ができないので、ＴＶモニタの色調の設定
はない。In this case, the color tone setting on the TV monitor is as follows: (i) In systems that use PAL composite video signals and RGB video signals, color tone adjustment cannot be performed outside the commercially available TV monitor. There are no monitor color settings.
（ｉｉ）ＮＴＳＣ方式の複合映像信号を採用しているシ
ステムでは、ＴＶモニタにカラーパーを出力し、ＴＶモ
ニタの色調調整で色を合わせていた。(ii) In systems that use NTSC composite video signals, color pars are output to the TV monitor, and the colors are matched by adjusting the TV monitor's color tone.
［発明が解決しようとする問題点〕
ところが、使用者が色合せを行なう場合、（１）白色の
チャート等を被写体とし、使用者がそのＴＶモニタ画像
を見ながらホワイトバランスを行なう際、各自の記憶し
ている白に合わせるため、各個人個人によって異なった
各々の白に合わせてしまう。[Problems to be solved by the invention] However, when a user performs color matching, (1) when a white chart or the like is used as a subject and the user performs white balance while looking at the image on a TV monitor, each user must In order to match the white that is remembered, each person matches the white to a different white.
（２）映像信号処理装置の自動白色調整機能を使用する
場合、ＲＧＢおよびＰＡＬ方式ではＴＶモニタの調整が
できないため、個々のＴＶモニタを製造する際、色調の
バラツキがあり、映像信号処理装置より所定の信号を人
力しても、個々のＴＶモニタで色調が異なる。また、Ｎ
ＴＳＣ方式のＴＶモニタのカラルバー調整は、使用者か
適当に各自の記憶しているカラーパーに合わせるため、
各個人個人によって、異なったカラーパーに合わせてし
まう。(2) When using the automatic white adjustment function of the video signal processing device, since TV monitors cannot be adjusted using RGB and PAL systems, there may be variations in color tone when manufacturing individual TV monitors, and Even if a predetermined signal is input manually, the color tone will differ between individual TV monitors. Also, N
The color bar adjustment of a TSC TV monitor is done by the user to suit their own memorized color bar.
Each individual will match different color patterns.
要するに、今迄のところ内視鏡ＴＶシステムにおいては
被写体の色を忠実に色再現して観察することができなか
った。従って、内視鏡電子スコープ等による診断におい
ては、医師は各自各様の色で評価していたので、医師相
互間の情報交換に際しても診断結果が一致しないという
不都合が発生する場合もあった。また画像処理等におい
ても同一のｆｌｌｌｌ定データも色が違うため、医師相
互間では比較評価することができなかった。即ち、比較
しても意味をもたなかった。In short, until now it has not been possible to faithfully reproduce and observe the colors of an object in an endoscope TV system. Therefore, when making a diagnosis using an endoscope, an electronic scope, or the like, each doctor evaluates the color using a different color, which sometimes causes problems in that the diagnostic results do not match even when the doctors exchange information with each other. Furthermore, even in image processing, etc., the same constant data has different colors, making it impossible for doctors to compare and evaluate the data. In other words, the comparison was meaningless.
そこで、本発明の目的は、上述のように内視鏡ＴＶシス
テムにおけるＴＶモニタ製造上のバラツキ、あるいは観
ａｌｌｊ者の個人差によるＴＶモニタ画面の色のバラツ
キをなくシ、被写体の色を忠実にＴＶモニタ画面に再現
する内視鏡用映像信号処理装置における色調調整回路を
提供するにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate variations in the color of the TV monitor screen due to manufacturing variations in TV monitors in an endoscope TV system or individual differences among viewers, as described above, and to faithfully display the color of the subject. The present invention provides a color tone adjustment circuit in an endoscope video signal processing device that reproduces images on a TV monitor screen.
［問題点を解決するための手段および作用］この発明で
は、体腔内の像を撮像し、その画像信号をテレビ映像信
号に変換する映像信号処理装置において、指定色のチャ
ートからなる被写体と、この被写体を撮像し、モニタＴ
Ｖに写し出された、その画像の色情報を検出する色度検
出回路と、この色度検出回路で検出された色情報と予じ
め記憶させておいた上記被写体の色情報とを比較する比
較回路と、この比較回路から出力される色度の差信号に
よって、色情報の差を除去するように映像信号を変調す
る色調調整回路と、を具備することを特徴とするもので
ある。[Means and effects for solving the problem] In the present invention, in a video signal processing device that captures an image inside a body cavity and converts the image signal into a television video signal, an object consisting of a chart of a designated color and a Capture an image of the subject and monitor
A chromaticity detection circuit that detects the color information of the image projected on the V, and a comparison that compares the color information detected by this chromaticity detection circuit with the color information of the subject stored in advance. The present invention is characterized by comprising a circuit, and a color tone adjustment circuit that modulates a video signal so as to eliminate a difference in color information using a chromaticity difference signal output from the comparison circuit.
［実 施 例］ 以下、図面を参照して本発明を具体的に説明する。[Example] Hereinafter, the present invention will be specifically explained with reference to the drawings.
第１，２図は、本発明の一実施例を示す映像信号処理装
置の構成図である。本発明では映像信号処理装置１の内
部に、色度検出回路４および比較回路５が設けてあり、
色度検出回路４にはＴＶモニタ画面２の色測定可能な位
置に装着されて、Ｒ信号、Ｇ信号およびＢ信号の光成分
を検出するＲ、 Ｇ、 Ｂセンサ３の出力が人力され
るようになっている。そして、上記比較回路５には後述
する指定色チャート６の色度を予じめ設定してあり、こ
の色度と電子スコープ７で測定した指定色チャート６の
色度を比較して、その色度の差信号を色調調節回路１１
にフィードバックするようになっている。1 and 2 are configuration diagrams of a video signal processing device showing an embodiment of the present invention. In the present invention, a chromaticity detection circuit 4 and a comparison circuit 5 are provided inside the video signal processing device 1.
The chromaticity detection circuit 4 is equipped with an R, G, B sensor 3 which is installed at a position where color can be measured on the TV monitor screen 2 and which detects the light components of the R signal, G signal and B signal. It has become. The comparison circuit 5 is preset with the chromaticity of a specified color chart 6, which will be described later, and compares this chromaticity with the chromaticity of the specified color chart 6 measured by the electronic scope 7 to determine the color. The color tone adjustment circuit 11 uses the degree difference signal.
It is designed to provide feedback.
一方、体腔内に挿入される内視鏡電子スコープ７は、指
定色チャート６を被写体とし、その反射光を対物レンズ
７ａを介してＣＣＤからなるイメージヤ−８に受光し、
このイメージヤ−８により光電変換された信号は映像信
号処理装置１に人力されるようになっている。即ち、こ
の信号は映像信号処理装置１内の増幅回路９て増幅され
、フィルター等の輝度・色信号分離回路１０で輝度信号
ＹとＲ信号とＢ信号とに分離して出力される。この出力
信号は、次段の色調調整回路１１にて色差信号Ｒ−Ｙと
Ｂ−Ｙに生成され、前記Ｙ信号と共にエンコーダ１２に
入力され、同エンコーダ１２は複合映像信号（ＮＴＳＣ
）をＴＶモニタ１３に出力する。On the other hand, an endoscope electronic scope 7 inserted into a body cavity takes a specified color chart 6 as an object, and receives the reflected light through an objective lens 7a to an imager 8 consisting of a CCD.
The signal photoelectrically converted by the imager 8 is manually input to the video signal processing device 1. That is, this signal is amplified by an amplifier circuit 9 in the video signal processing device 1, separated into a luminance signal Y, an R signal, and a B signal by a luminance/chrominance signal separation circuit 10 such as a filter, and outputted. This output signal is generated into color difference signals R-Y and B-Y by the color tone adjustment circuit 11 in the next stage, and is inputted together with the Y signal to the encoder 12, which receives a composite video signal (NTSC
) is output to the TV monitor 13.
このように構成された本発明の装置は、次のように動作
する。即ち、指定色チャート（単色）６からなる被写体
を内視ｆｆｔ電子スコープ７の先端構成部内に配設され
たＣＣＤイメージヤ−８で撮像し、その映像信号が映像
信号処理装置ｌの増幅回路９に入力される。この増幅回
路９にて増幅された映像信号はフィルター等の輝度・色
信号分離回路１０で輝度信号Ｙと色信号Ｒと色信号Ｂに
分離されて、色、ＷＷ整回路１ヱに印加される。そして
、該色調調整回路１１にて色差信号Ｒ−ＹとＢ−Ｙとを
生成し、上記輝度・色信号分離回路１０からのＹ信号と
ともにエンコーダ１２にてＮＴＳＣ方式の複合映像信号
にエンコードされ、ＴＶモニタ１３に入力される。従っ
て、ＴＶモニタ１３では、そのＣＲＴ上のＴＶモニタ画
面２に被写体としての指定色チャート５の画像を映し出
す。この指定色チャート６の画像は、ＲＧＢセンサ３に
て画像のＲ，Ｇ、およびＢの各々の光成分を検出され、
色度検出回路４に印加される。該色度検出回路４では、
色度を算出し、比較回路５に供給される。The device of the present invention configured as described above operates as follows. That is, an object consisting of a specified color chart (single color) 6 is imaged by a CCD imager 8 disposed within the tip component of an endoscopic fft electronic scope 7, and the video signal is sent to an amplifier circuit 9 of a video signal processing device 1. is input. The video signal amplified by this amplifier circuit 9 is separated into a luminance signal Y, a color signal R, and a color signal B by a luminance/color signal separation circuit 10 such as a filter, and then applied to a color/WW adjustment circuit 12. . Then, the color tone adjustment circuit 11 generates color difference signals R-Y and B-Y, which are encoded into an NTSC composite video signal by the encoder 12 together with the Y signal from the luminance/color signal separation circuit 10, It is input to the TV monitor 13. Therefore, on the TV monitor 13, an image of the specified color chart 5 as a subject is displayed on the TV monitor screen 2 on the CRT. The image of this designated color chart 6 has R, G, and B light components detected by the RGB sensor 3, and
The signal is applied to the chromaticity detection circuit 4. In the chromaticity detection circuit 4,
The chromaticity is calculated and supplied to the comparison circuit 5.
この比較回路５ではあらかじめ該比較回路５に設定され
ている指定色チャート６の色度と比較し、色度の差信号
を色調調整回路１１にフィードバンクし、色調変換して
指定色チャート画像の色度が設定しである色度と同じに
なるように：Ａ整される。This comparison circuit 5 compares the chromaticity with the chromaticity of the specified color chart 6 which is set in advance in the comparison circuit 5, feeds the chromaticity difference signal to the color tone adjustment circuit 11, performs color tone conversion, and converts the chromaticity of the specified color chart image. The chromaticity is set to A:A so that the chromaticity is the same as the set chromaticity.
以上の説明はＮＴＳＣ方式の複合映像信号についである
が、Ｒ，Ｇ、Ｂでも同様であることは言う迄もない
また、比較回路５から、色２ｉＩ調整回路１１ヘフィー
ドバックされる色度差信号は、上記した閉ループ構成に
せず、色度差信号でアナログ表示あるいはディジタル表
示の計器を作動させ、色調調整回路１１に外付けされた
可変抵抗器等により、操作者が手動調整してもよいこと
勿論である。更に上記実施例では電子スコープを用いた
が、これはファイバースコープを使用した内視鏡におい
ても接眼部にＴＶ右カメラ密接して同カメラの出力を映
像信号処理装置に導くようにすれば、本発明を適用でき
ることは言う迄もない。The above explanation is about the composite video signal of the NTSC system, but it goes without saying that the same applies to R, G, and B as well. Instead of using the closed-loop configuration described above, the operator may manually adjust the color tone adjustment circuit 11 by using a variable resistor or the like externally connected to the color tone adjustment circuit 11 by operating an instrument with an analog display or digital display using the chromaticity difference signal. Of course. Furthermore, in the above embodiment, an electronic scope was used, but even in an endoscope using a fiberscope, if the TV right camera is placed close to the eyepiece and the output of the camera is guided to the video signal processing device, It goes without saying that the present invention can be applied.
［発明の効果コ
以上述べたように、本発明によれば次のような顕著な効
果が得られる。[Effects of the Invention] As described above, according to the present invention, the following remarkable effects can be obtained.
（Ａ）指定色チャートの色を忠実にＴＶモニタ画面上で
再現できるので、実用に際し被写体の色を忠実にＴＶモ
ニタ画面上で再現できる。しかも、この操作はフィード
バックループを構成してなされるので、何等、人手をわ
ずられさないで済む。(A) Since the colors of the specified color chart can be faithfully reproduced on the TV monitor screen, the colors of the subject can be faithfully reproduced on the TV monitor screen in practical use. Moreover, since this operation is performed by forming a feedback loop, no human intervention is required.
（Ｂ）ＴＶモニタ製造上の色のバラツキ、および個人差
による色の違いがないから、全ての医師が同一の色で診
断可能であり、また画像処理等での測定データも全ての
医師が客観的に評価できる。(B) Since there are no variations in color due to the manufacture of TV monitors or differences in color due to individual differences, all doctors can diagnose using the same color, and all doctors can objectively view measurement data from image processing, etc. can be evaluated.
第１図は、本発明の一実施例を示す内視鏡用映像信号処
理装置における色調調整装置の電気回路の構成を示すブ
ロック図、
第２図は、上記第１図の色調調整装置を有する内祝ｊｎ
ＴＶシステムの構成を示す斜視図である。
１・・・・・・・・・映像信号処理装置３・・・・・・
・・・Ｒ，Ｇ、Ｂセンサ４・・・・・・・・・色度検出
回路
５・・・・・・・・・比較回路FIG. 1 is a block diagram showing the configuration of an electric circuit of a color tone adjustment device in an endoscope video signal processing device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of an electric circuit of a color tone adjustment device shown in FIG. Family celebration jn
FIG. 1 is a perspective view showing the configuration of a TV system. 1......Video signal processing device 3...
...R, G, B sensor 4...Chromaticity detection circuit 5...Comparison circuit
Claims (1)
変換する映像信号処理装置において、指定色のチャート
からなる被写体と、 この被写体を撮像し、モニタＴＶに写し出された、その
画像の色情報を検出する色度検出回路と、この色度検出
回路で検出された色情報と予じめ記憶させておいた上記
被写体の色情報とを比較する比較回路と、 この比較回路から出力される色度の差信号によって、色
情報の差を除去するように映像信号を変調する色調調整
回路と、 を具備したことを特徴とする色調調整装置。[Scope of Claims] A video signal processing device that captures an image inside a body cavity and converts the image signal into a television video signal, which includes a subject consisting of a chart of a specified color, and an image of the subject that is displayed on a TV monitor. a chromaticity detection circuit that detects color information of the image; a comparison circuit that compares the color information detected by the chromaticity detection circuit with color information of the subject stored in advance; A color tone adjustment device comprising: a color tone adjustment circuit that modulates a video signal so as to remove a difference in color information using a chromaticity difference signal output from a comparison circuit.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61305691A JP2648478B2 (en) | 1986-12-22 | 1986-12-22 | Endoscope device |
| US07/132,151 US4799104A (en) | 1986-12-19 | 1987-12-14 | Video signal processor for endoscope |
| DE19873743095 DE3743095A1 (en) | 1986-12-19 | 1987-12-18 | VIDEO SIGNAL PROCESSOR FOR AN ENDOSCOPE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61305691A JP2648478B2 (en) | 1986-12-22 | 1986-12-22 | Endoscope device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63157595A true JPS63157595A (en) | 1988-06-30 |
| JP2648478B2 JP2648478B2 (en) | 1997-08-27 |
Family
ID=17948198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61305691A Expired - Fee Related JP2648478B2 (en) | 1986-12-19 | 1986-12-22 | Endoscope device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2648478B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03165733A (en) * | 1989-11-27 | 1991-07-17 | Ikegami Tsushinki Co Ltd | Electronic endoscope device |
| JPH099286A (en) * | 1995-06-21 | 1997-01-10 | Nec Corp | Color adjusting circuit and color adjusting system including the same |
| JP2004167008A (en) * | 2002-11-20 | 2004-06-17 | Olympus Corp | Body inside observation system |
| JP2005073718A (en) * | 2003-08-29 | 2005-03-24 | Pentax Corp | Electronic endoscope apparatus with integrated monitor and electronic apparatus |
| JP2010171719A (en) * | 2009-01-22 | 2010-08-05 | Olympus Corp | Imaging system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4217451B2 (en) * | 2002-09-30 | 2009-02-04 | Ｈｏｙａ株式会社 | Endoscope color adjustment instrument including light-shielding member |
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|---|---|---|---|---|
| JPS54144818A (en) * | 1978-05-04 | 1979-11-12 | Matsushita Electric Ind Co Ltd | Remote control unit for color television receiver |
| JPS5668089A (en) * | 1979-11-08 | 1981-06-08 | Synemed Inc | Color vision recognition testing controlling color source |
| JPS60141506U (en) * | 1984-03-01 | 1985-09-19 | ソニー株式会社 | Multi-point detection device |
| JPS6196891A (en) * | 1984-10-17 | 1986-05-15 | Olympus Optical Co Ltd | Endoscope device |
| JPS62298290A (en) * | 1986-06-18 | 1987-12-25 | Fuji Photo Film Co Ltd | Method for monitoring color negative image |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03165733A (en) * | 1989-11-27 | 1991-07-17 | Ikegami Tsushinki Co Ltd | Electronic endoscope device |
| JPH099286A (en) * | 1995-06-21 | 1997-01-10 | Nec Corp | Color adjusting circuit and color adjusting system including the same |
| JP2004167008A (en) * | 2002-11-20 | 2004-06-17 | Olympus Corp | Body inside observation system |
| JP2005073718A (en) * | 2003-08-29 | 2005-03-24 | Pentax Corp | Electronic endoscope apparatus with integrated monitor and electronic apparatus |
| JP2010171719A (en) * | 2009-01-22 | 2010-08-05 | Olympus Corp | Imaging system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2648478B2 (en) | 1997-08-27 |
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