JPH0583588A - Image processor - Google Patents

Image processor

Info

Publication number
JPH0583588A
JPH0583588A JP27334091A JP27334091A JPH0583588A JP H0583588 A JPH0583588 A JP H0583588A JP 27334091 A JP27334091 A JP 27334091A JP 27334091 A JP27334091 A JP 27334091A JP H0583588 A JPH0583588 A JP H0583588A
Authority
JP
Japan
Prior art keywords
signal
video signal
image
video
controller
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
JP27334091A
Other languages
Japanese (ja)
Inventor
Masahiro Kawachi
雅弘 河内
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.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics Co
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 Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to JP27334091A priority Critical patent/JPH0583588A/en
Publication of JPH0583588A publication Critical patent/JPH0583588A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the displaying of an image from being disturbed even when an image pick-up device to output a video signal by matching to the arbitrary input timing of a trigger signal is used. CONSTITUTION:This processor is constituted of a television camera 1, a controller 2 and a video monitor 3, and when the television camera 1 inputs a trigger signal with an arbitrary timing from the controller 2, a video signal is outputted by matching to the timing. A first synchronizing signal generating part 10 held by the controller 2 generates a first synchronizing signal synchronized with the video signal, and a second synchronizing signal generating part 11 internally generates a second synchronizing signal of the fixed cycle not synchronized with the video signal, and the video signal is written into a DPRAM 5 by the first synchronizing signal, the storing image is read out of the DPRAM 5 by the second synchronizing signal, outputted to a displaying control part 7 and an image is displayed to the video monitor 3.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、対象物を撮像して得
られた画像を処理して認識などを実行する画像処理装置
に関連し、殊にこの発明は、トリガ信号の任意の入力タ
イミングに合わせて映像信号を出力する撮像装置が用い
られた画像処理装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus for processing an image obtained by picking up an image of an object to perform recognition, and more particularly, the present invention relates to an arbitrary input timing of a trigger signal. The present invention relates to an image processing device using an imaging device that outputs a video signal in accordance with the above.

【0002】[0002]

【従来の技術】従来のその種画像処理装置は、図3に示
すように、対象物を撮像して映像信号を出力するテレビ
カメラ20と、前記映像信号を入力して所定の画像処理
を行うコントローラ21と、前記映像信号にかかる画像
を表示するビデオモニタ22とから成る。前記コントロ
ーラ21は、A/D変換器23,画像処理部24,表示
制御部25,D/A変換器26,CPU27,ROM2
8,RAM29などの各構成を含む他、同期信号生成部
30とトリガ生成部31とを有する。
2. Description of the Related Art As shown in FIG. 3, a conventional image processing apparatus of the related art performs a predetermined image processing by inputting the video signal and a television camera 20 which picks up an image of an object and outputs a video signal. It comprises a controller 21 and a video monitor 22 for displaying an image relating to the video signal. The controller 21 includes an A / D converter 23, an image processing unit 24, a display control unit 25, a D / A converter 26, a CPU 27, and a ROM 2.
8, a RAM 29, and the like, and a sync signal generator 30 and a trigger generator 31.

【0003】この画像処理装置に対して任意のタイミン
グで外部入力が与えられると、トリガ生成部31は図4
(1) に示すようなトリガ信号を生成してテレビカメラ2
0へ出力し、テレビカメラ20はこのトリガ信号の入力
タイミングに合わせてフィールドf1が開始する映像信
号(図4(2) に示す)をA/D変換器23および同期信
号生成部30へ出力する。前記同期信号生成部30は、
前記映像信号に同期した同期信号を生成して表示制御部
25へ出力し、表示制御部25は前記同期信号に同期し
てA/D変換器23からの映像信号をD/A変換器26
を経てビデオモニタ22へ出力し画像を表示させる。
When an external input is given to this image processing apparatus at an arbitrary timing, the trigger generation unit 31 operates as shown in FIG.
The TV camera 2 generates a trigger signal as shown in (1).
0, and the TV camera 20 outputs the video signal (shown in FIG. 4 (2)) in which the field f1 is started to the A / D converter 23 and the synchronization signal generation unit 30 at the input timing of the trigger signal. .. The sync signal generator 30 includes
A synchronization signal synchronized with the video signal is generated and output to the display control unit 25, and the display control unit 25 synchronizes the video signal from the A / D converter 23 with the D / A converter 26 in synchronization with the synchronization signal.
And is output to the video monitor 22 to display an image.

【0004】[0004]

【発明が解決しようとする問題点】上記構成の画像処理
装置では、テレビカメラ20より出力される映像信号
は、トリガ信号の入力タイミングに合わせてフィールド
f1が開始するから、その前のフィールドf0の周期T
2が通常の周期T1より短くなり、その結果、ビデオモ
ニタ22に表示される画像が乱れるという問題がある。
In the image processing apparatus having the above configuration, the field f1 of the video signal output from the television camera 20 starts at the input timing of the trigger signal. Cycle T
2 becomes shorter than the normal period T1, and as a result, the image displayed on the video monitor 22 is disturbed.

【0005】この発明は、上記問題に着目してなされた
もので、たとえトリガ信号の任意の入力タイミングに合
わせて映像信号を出力する撮像装置を用いた場合でも、
画像の表示が乱れることのない画像処理装置を提供する
ことを目的とする。
The present invention has been made in view of the above problems, and even if an image pickup apparatus which outputs a video signal in synchronization with an arbitrary input timing of a trigger signal is used,
An object of the present invention is to provide an image processing device in which display of an image is not disturbed.

【0006】[0006]

【課題を解決するための手段】この発明にかかる画像処
理装置は、トリガ信号の任意の入力タイミングに合わせ
て映像信号が出力される撮像装置と、前記映像信号を入
力して所定の画像処理を行うコントローラと、前記映像
信号にかかる画像を表示する画像表示装置とを有するも
のである。前記コントローラは、前記撮像装置が出力す
る映像信号に同期した第1の同期信号を生成する第1の
同期信号生成部と、映像信号に同期しない固定周期の第
2の同期信号を生成する第2の同期信号生成部と、第1
の同期信号により映像信号が書き込まれる画像記憶部と
を備えており、第2の同期信号により前記画像記憶部よ
り記憶画像を読み出して前記画像表示装置へ出力させる
ようになっている。
SUMMARY OF THE INVENTION An image processing apparatus according to the present invention includes an image pickup apparatus which outputs a video signal at an arbitrary input timing of a trigger signal, and a predetermined image processing which receives the video signal. It has a controller for performing and an image display device for displaying an image related to the video signal. The controller includes a first synchronization signal generation unit that generates a first synchronization signal that is synchronized with a video signal output by the imaging device, and a second synchronization signal that is a second synchronization signal that has a fixed cycle and that is not synchronized with the video signal. A synchronization signal generator of the first
And an image storage unit in which a video signal is written by the synchronization signal of 1., and a stored image is read from the image storage unit by the second synchronization signal and output to the image display device.

【0007】[0007]

【作用】画像記憶部には第1の同期信号により映像信号
がトリガ信号の入力タイミングに応じてフィールド途中
まで書き込まれるが、この画像記憶部からは第2の同期
信号により1フィールド分の映像信号が読み出される。
この読出出力は前半がフィールド途中までの映像信号に
対応し、後半はその前のフィルードにかかる映像信号に
対応するもので、この合成された映像信号間には殆ど差
異がないため、画像表示装置に表示される画像は乱れる
ことがない。
According to the first synchronization signal, the video signal is written in the image storage section in the middle of the field in accordance with the input timing of the trigger signal. From the image storage section, the video signal for one field is written by the second synchronization signal. Is read.
In the read output, the first half corresponds to a video signal halfway through the field, and the second half corresponds to a video signal related to the preceding field. Since there is almost no difference between the combined video signals, the image display device The image displayed on is not disturbed.

【0008】[0008]

【実施例】図1は、この発明の一実施例にかかる画像処
理装置の全体構成を示すもので、対象物を撮像して映像
信号を出力するテレビカメラ1と、前記映像信号を入力
して所定の画像処理を行うコントローラ2と、前記映像
信号にかかる画像を表示するビデオモニタ3とから成
る。
FIG. 1 shows the overall construction of an image processing apparatus according to an embodiment of the present invention. A television camera 1 for picking up an image of an object and outputting a video signal, and an input of the video signal. It is composed of a controller 2 that performs predetermined image processing and a video monitor 3 that displays an image related to the video signal.

【0009】前記テレビカメラ1は受光素子としてCC
Dを内蔵したCCDカメラであって、コントローラ2よ
り任意のタイミングでトリガ信号が与えられたとき、そ
のトリガ信号の入力タイミングに合わせて映像信号を出
力するものである。
The television camera 1 uses CC as a light receiving element.
A CCD camera with a built-in D, which outputs a video signal in synchronization with the input timing of the trigger signal when the trigger signal is given from the controller 2 at an arbitrary timing.

【0010】前記コントローラ2は、A/D変換器4,
デュアルポートRAM(以下「DPRAM」という)
5,画像処理部6,表示制御部7,D/A変換器8,コ
ンピュータ制御部9,第1,第2の同期信号生成部1
0,11,トリガ生成部12などを構成として含んでい
る。
The controller 2 includes an A / D converter 4,
Dual port RAM (hereinafter referred to as "DPRAM")
5, image processing unit 6, display control unit 7, D / A converter 8, computer control unit 9, first and second synchronization signal generation unit 1
0, 11, a trigger generation unit 12 and the like are included as components.

【0011】前記A/D変換器4は、テレビカメラ1か
らのアナログ量の映像信号をディジルタ量に変換する。
DPRAM5は書込みおよび読出しのための2個のポー
トP1,P2をもち、1フィールド分の映像信号が記憶
される。表示制御部7は前記DPRAM5より読み出さ
れた映像信号にかかる画像をビデオモニタ4に表示させ
るための制御を行う。D/A変換器8は表示制御部7か
らのディジタル量の映像信号をアナログ量に変換してビ
デオモニタ4へ出力する。
The A / D converter 4 converts an analog image signal from the television camera 1 into a digital amount.
The DPRAM 5 has two ports P1 and P2 for writing and reading and stores a video signal for one field. The display control unit 7 controls the video monitor 4 to display an image of the video signal read from the DPRAM 5. The D / A converter 8 converts the digital video signal from the display controller 7 into an analog video signal and outputs the analog video signal to the video monitor 4.

【0012】コンピュータ制御部9は、制御・演算の主
体であるCPU13を含み、このCPU13にバス16
を介してROM14およびRAM15が接続される。R
OM9は画像処理のためのプログラムが格納され、また
RAM8は各種データの読み書きに供される。
The computer control unit 9 includes a CPU 13 which is a main body of control and calculation, and a bus 16 is connected to the CPU 13.
The ROM 14 and the RAM 15 are connected via the. R
The OM 9 stores a program for image processing, and the RAM 8 is used for reading and writing various data.

【0013】第1の同期信号生成部10は前記テレビカ
メラ1が出力する映像信号に同期した第1の同期信号を
生成するもので、この第1の同期信号とA/D変換器4
からの映像信号とをDPRAM5のポートP1へ入力
し、第1の同期信号を用いて前記映像信号がポートP1
よりDPRAM5に書き込まれる。
The first sync signal generator 10 is for generating a first sync signal in synchronization with the video signal output from the television camera 1, and the first sync signal and the A / D converter 4 are used.
From the port P1 of the DPRAM 5 is input to the port P1 of the DPRAM 5 by using the first synchronizing signal.
Is written in DPRAM5.

【0014】また第2の同期信号生成部11は映像信号
に同期しない固定周期の第2の同期信号を生成するもの
で、この第2の同期信号をDPRAM5のポートP2へ
入力し、第2の同期信号を用いてDPRAM5より映像
信号がポートP2より読み出される。トリガ生成部12
は、任意のタイミングの外部入力に対しトリガ信号を生
成してテレビカメラ1へ出力する。
The second sync signal generator 11 is for generating a second sync signal having a fixed cycle which is not synchronized with the video signal. The second sync signal is input to the port P2 of the DPRAM 5 to generate the second sync signal. A video signal is read from the DPRAM 5 from the port P2 using the synchronization signal. Trigger generator 12
Generates a trigger signal for an external input at an arbitrary timing and outputs it to the television camera 1.

【0015】図2は、上記画像処理装置のタイムチャー
トであって、図2(1)はトリガ生成部12が出力する
トリガ信号を、図2(2)はテレビカメラ1が出力する
映像信号(DPRAM5の入力)を、図2(3)はDP
RAM5の出力を、それぞれ示す。以下、図2のタイム
チャートに従って上記画像処理装置の動作を説明する。
FIG. 2 is a time chart of the image processing apparatus. FIG. 2 (1) shows a trigger signal output from the trigger generator 12, and FIG. 2 (2) shows a video signal output from the television camera 1 ( DPRAM5 input)
The outputs of the RAM 5 are shown respectively. The operation of the image processing apparatus will be described below with reference to the time chart of FIG.

【0016】テレビカメラ1からの映像信号は、A/D
変換器4および第1の同期信号生成部10へ出力され
る。A/D変換器4はディジタル量の映像信号を、また
第1の同期信号生成部10は映像信号に同期した第1の
同期信号を、それぞれDPRAM5のポートP1へ出力
する。DPRAM5には第1の同期信号を用いて1フィ
ールド分の映像信号、例えば図2(2)におけるフィー
ルドf1の映像信号がDPRAM5に書き込まれる。こ
のフィールドf1の周期はT1である。
The video signal from the TV camera 1 is A / D
It is output to the converter 4 and the first synchronization signal generator 10. The A / D converter 4 outputs the digital video signal, and the first sync signal generator 10 outputs the first sync signal synchronized with the video signal to the port P1 of the DPRAM 5, respectively. A video signal for one field, for example, a video signal for the field f1 in FIG. 2B is written in the DPRAM 5 in the DPRAM 5 by using the first synchronization signal. The cycle of this field f1 is T1.

【0017】一方、第2の同期信号生成部12は、映像
信号に同期しない固定周期の第2の同期信号を生成して
DPRAM5のポートP2へ出力しており、DPRAM
5からはこの第2の同期信号により前記フィールドf1
に対応するフィールドF1の映像信号が読み出される。
このフィールドF1の周期もT1である。
On the other hand, the second synchronizing signal generator 12 generates a second synchronizing signal having a fixed cycle which is not synchronized with the video signal and outputs the second synchronizing signal to the port P2 of the DPRAM 5.
From the No. 5, the field f1 is generated by the second synchronization signal.
The video signal of the field F1 corresponding to is read.
The cycle of this field F1 is also T1.

【0018】いまつぎのフィールドf2の映像信号を出
力する途中のタイミングでトリガ信号(図2(1)参
照)を入力したとき、テレビカメラ1は前記トリガ信号
の入力タイミングに合わせて新たなフィールドf3の映
像信号を出力する。このためフィールドf2については
DPRAM5への映像信号の書込みはフィールド途中ま
でとなり、その周期T2は通常の周期T1より短いもの
となる。
When a trigger signal (see FIG. 2 (1)) is input at the timing when the video signal of the next field f2 is being output, the television camera 1 newly adds a field f3 in accordance with the input timing of the trigger signal. The video signal of is output. For the field f2, therefore, the video signal is written to the DPRAM 5 halfway through the field, and the cycle T2 is shorter than the normal cycle T1.

【0019】一方、DPRAM5からの映像信号の読出
しは、映像信号に同期しない固定周期の第2の同期信号
を用いて行われるもので、このときのDPRAM5から
のフィールドF2の出力は、前半が前記フィールドf2
の映像信号に対応し、後半がその前のフィルードf1の
映像信号に対応する。このフィールドF2の周期はT1
であり、この合成された映像信号は表示制御部17へ出
力される。この場合前記フィールドf2の映像信号とフ
ィルードf1の映像信号との間には殆ど差異がないた
め、ビデオモニタ3に表示されるフィールドF2にかか
る表示画像は乱れることがない。
On the other hand, the reading of the video signal from the DPRAM 5 is carried out by using the second synchronizing signal having a fixed cycle which is not synchronized with the video signal. Field f2
, And the latter half corresponds to the preceding video signal of the field f1. The cycle of this field F2 is T1
The combined video signal is output to the display control unit 17. In this case, since there is almost no difference between the video signal of the field f2 and the video signal of the field f1, the display image on the field F2 displayed on the video monitor 3 is not disturbed.

【0020】[0020]

【発明の効果】この発明は上記の如く、第1の同期信号
生成部により撮像装置が出力する映像信号に同期した第
1の同期信号を生成し、また第2の同期信号生成部によ
り映像信号に同期しない固定周期の第2の同期信号を内
部生成して、第1の同期信号により映像信号を画像記憶
部へ書き込むとともに、第2の同期信号により前記画像
記憶部より記憶画像を読み出して前記画像表示装置へ出
力させるから、たとえトリガ信号の任意の入力タイミン
グに合わせて映像信号を出力する撮像装置を用いた場合
でも、画像の表示が乱れることがなく、常に見やすい画
面が得られるという顕著な効果を奏する。
As described above, according to the present invention, the first synchronizing signal generating section generates the first synchronizing signal synchronized with the video signal output from the image pickup apparatus, and the second synchronizing signal generating section generates the video signal. A second synchronizing signal having a fixed cycle which is not synchronized with the above, and a video signal is written to the image storage unit by the first synchronizing signal, and a stored image is read from the image storing unit by the second synchronizing signal, Since the image is output to the image display device, even if an image pickup device that outputs a video signal at an arbitrary input timing of a trigger signal is used, the display of the image is not disturbed and a screen that is easy to see is always obtained. Produce an effect.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例にかかる画像処理装置の構
成を示すブロック図である。
FIG. 1 is a block diagram showing a configuration of an image processing apparatus according to an embodiment of the present invention.

【図2】図1の画像処理装置の動作を示すタイムチャー
トである。
FIG. 2 is a time chart showing the operation of the image processing apparatus of FIG.

【図3】従来の画像処理装置の構成を示すブロック図で
ある。
FIG. 3 is a block diagram showing a configuration of a conventional image processing apparatus.

【図4】従来の画像処理装置の動作を示すタイムチャー
トである。
FIG. 4 is a time chart showing the operation of the conventional image processing apparatus.

【符号の説明】[Explanation of symbols]

1 テレビカメラ 2 コントローラ 3 ビデオモニタ 5 DPRAM 10 第1の同期信号生成部 11 第2の同期信号生成部 12 トリガ生成部 DESCRIPTION OF SYMBOLS 1 TV camera 2 Controller 3 Video monitor 5 DPRAM 10 First synchronization signal generation unit 11 Second synchronization signal generation unit 12 Trigger generation unit

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 トリガ信号の任意の入力タイミングに合
わせて映像信号が出力される撮像装置と、前記映像信号
を入力して所定の画像処理を行うコントローラと、前記
映像信号にかかる画像を表示する画像表示装置とから成
る画像処理装置において、 前記コントローラは、前記撮像装置が出力する映像信号
に同期した第1の同期信号を生成する第1の同期信号生
成部と、映像信号に同期しない固定周期の第2の同期信
号を生成する第2の同期信号生成部と、第1の同期信号
により映像信号が書き込まれる画像記憶部とを備え、 第2の同期信号により前記画像記憶部より記憶画像を読
み出して前記画像表示装置へ出力させる画像処理装置。
1. An image pickup apparatus which outputs a video signal at an arbitrary input timing of a trigger signal, a controller which inputs the video signal to perform a predetermined image processing, and displays an image related to the video signal. In an image processing device including an image display device, the controller includes a first synchronization signal generation unit that generates a first synchronization signal that is synchronized with a video signal output from the imaging device, and a fixed cycle that is not synchronized with the video signal. A second synchronization signal generation unit for generating a second synchronization signal and an image storage unit in which a video signal is written by the first synchronization signal, and a stored image is stored in the image storage unit by the second synchronization signal. An image processing device for reading and outputting to the image display device.
JP27334091A 1991-09-24 1991-09-24 Image processor Pending JPH0583588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27334091A JPH0583588A (en) 1991-09-24 1991-09-24 Image processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27334091A JPH0583588A (en) 1991-09-24 1991-09-24 Image processor

Publications (1)

Publication Number Publication Date
JPH0583588A true JPH0583588A (en) 1993-04-02

Family

ID=17526531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27334091A Pending JPH0583588A (en) 1991-09-24 1991-09-24 Image processor

Country Status (1)

Country Link
JP (1) JPH0583588A (en)

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EP1614537A1 (en) 2004-07-07 2006-01-11 Fuji Photo Film Co., Ltd. Lithographic printing plate precursor and lithographic printing method
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