KR960006506A - Exposure control of video camera - Google Patents

Exposure control of video camera Download PDF

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Publication number
KR960006506A
KR960006506A KR1019940016616A KR19940016616A KR960006506A KR 960006506 A KR960006506 A KR 960006506A KR 1019940016616 A KR1019940016616 A KR 1019940016616A KR 19940016616 A KR19940016616 A KR 19940016616A KR 960006506 A KR960006506 A KR 960006506A
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KR
South Korea
Prior art keywords
signal
window
exposure control
exposure
positioning
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Application number
KR1019940016616A
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Korean (ko)
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KR0185909B1 (en
Inventor
반영균
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김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019940016616A priority Critical patent/KR0185909B1/en
Priority to JP7172350A priority patent/JPH0856305A/en
Priority to CN95109160A priority patent/CN1075313C/en
Publication of KR960006506A publication Critical patent/KR960006506A/en
Application granted granted Critical
Publication of KR0185909B1 publication Critical patent/KR0185909B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70Circuitry for compensating brightness variation in the scene
    • H04N23/75Circuitry for compensating brightness variation in the scene by influencing optical camera components
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/63Control of cameras or camera modules by using electronic viewfinders
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70Circuitry for compensating brightness variation in the scene
    • H04N23/73Circuitry for compensating brightness variation in the scene by influencing the exposure time

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Exposure Control For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)

Abstract

본 발명의 노출 조절장치는 비디오 카메라의 조리개를 통해 촬상소자로 인가되는 영상신호를 사용하여 촬영장면에 대한 노출을 조절한다. 위치지정부는 촬영할려는 피사체의 촬영장면에 대한 위치를 지정한다. 현시수단은 촬상수단를 통해 인가되는 촬영장면과 촬영장면에 설정되는 윈도우를 현시한다. 노출제어부는 설정된 윈도우내의 촬영장면과 윈도우밖의 촬영장면에 대하여 서로 다르게 기설정되는 가중값에 근거하여 노출제어신호를 발생하며, 구동수단은 노출제어신호에 응답하여 조리개를 구동시켜 조리개를 열어주거나 졸여준다. 그 결과, 피사체가 촬영장면내의 어느 위치에 존재하더라도 피사체를 중심으로 노출정도를 조절할 수 있으므로, 촬영장면에 대한 정확한 노출조절이 가능하다.The exposure control device of the present invention adjusts exposure to a photographing scene using an image signal applied to an image pickup device through an aperture of a video camera. The positioning unit designates the position of the shooting scene of the subject to be photographed. The display means displays a photographing scene applied through the image pickup means and a window set on the photographing scene. The exposure control unit generates an exposure control signal based on a weight value differently set for the shooting scene in the set window and the shooting scene outside the window, and the driving means drives the aperture in response to the exposure control signal to open or boil down the aperture. . As a result, even if the subject exists at any position in the shooting scene, the exposure degree can be adjusted centering on the subject, so that accurate exposure adjustment for the shooting scene is possible.

Description

비데오 카메라의 노출 조절장치Exposure control of video camera

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명의 바람직한 일 실시예에 따른 비데오 카메라의 노출 조절 장치를 나타낸 블록도.3 is a block diagram illustrating an exposure control apparatus of a video camera according to an exemplary embodiment of the present invention.

제4도는 촬영자에 의해 위치 지정되는 윈도우를 나타낸 도면.4 shows a window positioned by the photographer.

제5도는 여러가지 환경에서 피사체를 촬영하는 경우를 보여주는 도면.5 is a diagram showing a case of photographing a subject in various environments.

Claims (7)

비데오 카메라의 촬상소자를 통해 인가되는 영상신호를 사용하여 촬영장면에 대한 노출을 조절하는 장치에 있어서, 조리개; 촬영장면에 대한 촬영할려는 피사체의 위치를 지정하기 위한 위치지정 신호를 발생하는 위치지정수단; 상기 위치지정수단으로부터 인가되는 위치지정신호에 응답하여 촬영장면과, 촬영장면에 설정되는 윈도우를 현시하기 위한 수단; 상기 위치지정수단으로부터 인가되는 위치지정신호에 응답하여 상기 윈도우 내의 촬영장면과 윈도우밖의 촬영장면에 대하여 서로 다르게 기설정되는 가중값으로 근거하여 노출제어신호를 발생하는 노출제어부; 및 상기 노출제어부의 노출제어신호에 응답하여 조리개를 구동시키기 위한 수단을 포함하는 것을 특징으로 하는 비디오 카메라의 노출 조절장치.An apparatus for controlling exposure to a photographing scene using an image signal applied through an image pickup device of a video camera, the apparatus comprising: an aperture; Positioning means for generating a positioning signal for designating a position of a subject to be photographed with respect to a photographing scene; Means for displaying a photographing scene and a window set in the photographing scene in response to a positioning signal applied from the positioning means; An exposure control unit for generating an exposure control signal based on a weight value differently set for the photographing scene in the window and the photographing scene outside the window in response to a positioning signal applied from the positioning means; And means for driving the aperture in response to an exposure control signal of the exposure control unit. 제1항에 있어서, 상기 위치지정수단은 지정된 위치의 윈도우를 사용한 노출조절을 지시하기 위한 위치확정스위치를 구비하여, 촬영자의 윈도우 위치 이동 조작에 대응하는 제1위치지정신호를 발생하며, 상기 위치확정스위치가 눌러지면 제2위치지정신호를 발생하는 것을 특징으로 하는 비디오 카메라의 노출 조절장치.2. The apparatus according to claim 1, wherein the positioning means includes a position determination switch for instructing exposure adjustment using a window of a designated position, and generates a first positioning signal corresponding to the window position movement operation of the photographer. And a second positioning signal is generated when the confirmation switch is pressed. 제2항에 있어서, 상기 현시수단은 상기 촬영장면과 윈도우신호를 현시하기 위한 뷰파인더; 및 상기 제1위치지정신호에 의해 지정된 위치를 갖는 윈도우를 상기 뷰파인더에 현시하기 위한 제1표시신호와, 상기 뷰파인더에 현시되는 윈도우를 사용하여 노출조절이 이루어짐을 표시하기 위한 제2표시신호를 발생하는 위치정보발생기를 구비함을 특징으로 하는 비디오 카메라의 노출 조절장치.The display apparatus according to claim 2, wherein the display means comprises: a viewfinder for displaying the photographing scene and the window signal; And a first display signal for displaying a window having a position designated by the first positioning signal to the viewfinder, and a second display signal for indicating that exposure adjustment is performed using the window displayed in the viewfinder. Exposure control device of a video camera, characterized in that it comprises a position information generator for generating a. 제3항에 있어서, 상기 제1표시신호 및 제2표시신호는 뷰파인더의 화면상에 서로구분되는 형상을 갖는 윈도우를 현시하기 위한 신호인 것을 특징으로 하는 비디오 카메라의 노출 조절장치.The apparatus of claim 3, wherein the first display signal and the second display signal are signals for displaying a window having a shape distinguishing from each other on a screen of a viewfinder. 제4항에 있어서, 상기 노출제어부는 상기 촬상소자로부터의 영상신호와, 상기 위치지정수단으로 부터의 제1위치지정신호 및 제2위치지정신호를 인가받아 촬영장면에 대한 프레임 밝기정보신호를 계산하는 밝기정보 추출기; 및 상기 밝기정보추출기로부터 인가되는 밝기정보신호를 기설정된 기준값과 비교하여 노출제어신호를 발생하는 노출치결정기를 구비함을 특징으로 하는 비디오 카메라의 노출 조절장치.The apparatus of claim 4, wherein the exposure controller is configured to calculate a frame brightness information signal for a photographing scene by receiving an image signal from the image pickup device, a first positioning signal, and a second positioning signal from the positioning means. A brightness information extractor; And an exposure value determiner configured to generate an exposure control signal by comparing the brightness information signal applied from the brightness information extractor with a preset reference value. 제5항에 있어서, 상기 밝기정보추출기는 상기 위치지정수단으로부터 인가되는 위치지정신호들에 근거하여 촬영장면에 윈도우를 설정하는 단계; 상기 설정된 윈도우의 내부에 대한 제1밝기정보 및 윈도우의 외부에 대한 제2밝기정보를 계산하는 단계; 상기 밝기정보들에 근거하여 프레임 밝기정보신호를 발생하는 단계를 실행하는 것을 특징으로 하는 비디오 카메라의 노출 조절장치.The method of claim 5, wherein the brightness information extractor comprises: setting a window on a photographing scene based on positioning signals applied from the positioning means; Calculating first brightness information on the inside of the set window and second brightness information on the outside of the window; And generating a frame brightness information signal based on the brightness information. 제6항에 있어서, 상기 노출치결정기는 상기 프레임 밝기정보신호가 상기 기준값보다 적으면, 상기 조리개를 열기위한 노출제어신호를 발생하고, 상기 프레임 밝기정보신호가 상기 기준값보다 크면, 상기 조리개를 열졸여주기 위한 노출제어신호를 발생하는 것을 특징으로 하는 비디오 카메라의 노출 조절장치.The display apparatus of claim 6, wherein the exposure value determiner generates an exposure control signal for opening the aperture when the frame brightness information signal is less than the reference value, and heats the aperture when the frame brightness information signal is greater than the reference value. Exposure control device for a video camera, characterized in that for generating an exposure control signal for giving. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940016616A 1994-07-11 1994-07-11 Exposure control apparatus for video camera KR0185909B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019940016616A KR0185909B1 (en) 1994-07-11 1994-07-11 Exposure control apparatus for video camera
JP7172350A JPH0856305A (en) 1994-07-11 1995-07-07 Exposure adjustment device of video camera
CN95109160A CN1075313C (en) 1994-07-11 1995-07-10 Exposure adjusting device of pickup camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940016616A KR0185909B1 (en) 1994-07-11 1994-07-11 Exposure control apparatus for video camera

Publications (2)

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KR960006506A true KR960006506A (en) 1996-02-23
KR0185909B1 KR0185909B1 (en) 1999-05-01

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KR1019940016616A KR0185909B1 (en) 1994-07-11 1994-07-11 Exposure control apparatus for video camera

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JP (1) JPH0856305A (en)
KR (1) KR0185909B1 (en)
CN (1) CN1075313C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100433092B1 (en) * 2002-06-20 2004-05-28 주식회사 하이닉스반도체 Method for controlling exposure of digital camera

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100861208B1 (en) * 2001-12-24 2008-09-30 매그나칩 반도체 유한회사 Method for luminance correcting in multi-mode
KR20040033967A (en) * 2002-10-16 2004-04-28 삼성테크윈 주식회사 Method for controlling digital camera wherein location of indicating detection area varies
JP4738778B2 (en) * 2003-10-15 2011-08-03 富士通テン株式会社 Image processing device, driving support device, and driving support system
KR101230200B1 (en) * 2005-03-29 2013-02-05 코니카 미놀타 포토 이미징 가부시끼가이샤 Imaging device
CN101651775B (en) * 2008-08-14 2011-08-24 鸿富锦精密工业(深圳)有限公司 Image capture device and exposure method thereof
KR101984516B1 (en) 2017-07-21 2019-05-31 엘지전자 주식회사 Cleaner and controlling method thereof
WO2021159279A1 (en) * 2020-02-11 2021-08-19 深圳元戎启行科技有限公司 Exposure control method and apparatus, and readable storage medium and computer device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2898987B2 (en) * 1988-03-18 1999-06-02 キヤノン株式会社 Exposure control device
JPH03187580A (en) * 1989-12-15 1991-08-15 Kyocera Corp Camera whose af and ae areas can be set optionally

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100433092B1 (en) * 2002-06-20 2004-05-28 주식회사 하이닉스반도체 Method for controlling exposure of digital camera

Also Published As

Publication number Publication date
CN1075313C (en) 2001-11-21
JPH0856305A (en) 1996-02-27
KR0185909B1 (en) 1999-05-01
CN1127366A (en) 1996-07-24

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