KR960006496A - Video input device - Google Patents

Video input device Download PDF

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Publication number
KR960006496A
KR960006496A KR1019940016001A KR19940016001A KR960006496A KR 960006496 A KR960006496 A KR 960006496A KR 1019940016001 A KR1019940016001 A KR 1019940016001A KR 19940016001 A KR19940016001 A KR 19940016001A KR 960006496 A KR960006496 A KR 960006496A
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KR
South Korea
Prior art keywords
signal
image
ccd
output
processor
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KR1019940016001A
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Korean (ko)
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KR970011537B1 (en
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정재욱
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정재욱
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Priority to KR1019940016001A priority Critical patent/KR970011537B1/en
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Publication of KR970011537B1 publication Critical patent/KR970011537B1/en

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Classifications

    • 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
    • H04N25/65—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to reset noise, e.g. KTC noise related to CMOS structures by techniques other than CDS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

본 발명은 CCD카메라와 영상획득보드(Image Capture Board)와의 구성관계를 최적화하여 시스템의 구성상의 효율을 그대화한 영상입력기에 관한 것으로서, 본 발명의 영상입력기는 영상데이타를 입력하기 위한 CCD카메라와, 이 CCD카메라로부터의 영상출력신호를 처리하여 멀티미디어 PC에 입력시키기 위한 영상획등보드를 구비하고, 상기 CCD카메라로부터의 영상출력신호를 처리하여 멀티미디어PC에 입력시키기 위한 영상획득보드를 구비하고, 상기 CCD카메라는 영상수광을 행하는 CCD, 이 CCD의 수직성분을 구동하기 위한 수직CCD구동기, 상기 CCD로부터 출력된 신호를 받아서 이 신호의 리셋노이즈를 제거하고 신호의 크기에 따라 신호이득을 조종하여 영상신호출력단에 영상신호를 아날로그신호로서 출력하는 CDS/AGC로 구성되고, 사익 영상획득보드는 상기 영상신호출력단에서 출력된 아날로그신호를 영상입력단을 통해 수신하여 디지탈신호로 변환하는 A/D변환기, 이 A/D변환기로부터 출력된 디지탈신호를 입력하여 처리하는 디지탈칼라신호처리기, 이 디지탈칼라신호처리기로부터의 출력신호를 저장하는 영상메모리소자, 상기 A/D변환기, 디지탈칼라신호처리기, 영상기억소자에 타이밍신호 및 동기신호를 부여하는 동시에 상기 CCD카메라의 수직CCD구동 및 CDS/AGC에도 이와 같은 신호를 부여하는 타이밍/동기처리기로 구성되는 것을 특징으로 한다. 이러한 구성에 따라서, 본 발명은 영상획득보드에 장착된 디지탈라신호처리기(53)를 이용하여 종래 카메라의 칼라영상처리기가 행하던 기능을 대체함으로써 중복되는 불필용한 구성요소를 제거하였다. 또한, 이러한 구성에 따라 이에 부수되었던 NTSC/PAL TV신호전환 기능을 행하던 종래의 엔코더(15)및 디코더(24)를 동시에 제거할 수 있고, 이에 더하여 종래의 카메라에 내장되었던 타이밍발생기(17)및 동기신호발생기(16)의 기능을 영상획득보드의 타이밍/동기신호발생기가 대체할 수 있도록 함으로써 한층 효율성있는 구성이 되었다. 따라서, 본 발명에 따른 영상입력기는 종래에 비해 그 부품수가 1/3로 크게 감소되어 그 치수를 대폭적으로 축소시킬 수 있을 뿐 아니라 그 제조에 필요한 비용 및 생산원가를 절감시킬 수 있는 장점이 있다. 또한, 노이즈에 민감한 부분인 종래 카메라의 아나로그칼라신호처리기가 삭제됨으로써 고질적으로 문제가 되어왔던 영상데이타의 신뢰도에 근본적인 개선택을 제시하고 있다.The present invention relates to an image input device that optimizes the configuration relationship between a CCD camera and an image capture board to improve the efficiency of the system. The image input device of the present invention includes a CCD camera for inputting image data. And an image acquisition board for processing the image output signal from the CCD camera and inputting the same to a multimedia PC, and an image acquisition board for processing the image output signal from the CCD camera and inputting the same to the multimedia PC. The CCD camera includes a CCD for receiving an image, a vertical CCD driver for driving a vertical component of the CCD, a signal output from the CCD, removing reset noise of the signal, and controlling a signal gain according to the magnitude of the signal. And a CDS / AGC for outputting an image signal as an analog signal to a signal output stage, and the image acquisition board comprises: A / D converter which receives analog signal outputted from call power stage through video input stage and converts it into digital signal, digital color signal processor which inputs and processes digital signal output from this A / D converter, from digital color signal processor A timing signal and a synchronization signal are applied to an image memory device, an A / D converter, a digital color signal processor, and an image memory device that store an output signal of the same, and the same signal is also applied to the vertical CCD driving of the CCD camera and the CDS / AGC. It is characterized by consisting of a timing / synchronization processor. According to this configuration, the present invention eliminates redundant unnecessary components by using the digital signal processor 53 mounted on the image acquisition board to replace the functions performed by the color image processor of the conventional camera. In addition, according to this configuration, it is possible to simultaneously remove the conventional encoder 15 and the decoder 24 which have performed the accompanying NTSC / PAL TV signal switching function. The function of the synchronization signal generator 16 can be replaced by the timing / synchronization signal generator of the image acquisition board, thereby making the configuration more efficient. Therefore, the image input device according to the present invention has a merit that the number of parts is greatly reduced to one third compared to the related art, and the size thereof can be greatly reduced, and the cost and production cost required for the manufacture thereof can be reduced. In addition, the analog color signal processor of the conventional camera, which is a sensitive part of noise, is deleted, thereby suggesting a fundamental selection of reliability of image data which has been a problem.

Description

영상입력기Video input device

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

제3도는 본 발명의 영상입려기에 있어서, CCD 카메라와 영상획득보드의 구성관계를 나타내는 블럭도로서, (A)는 CCD 카메라의 내부구성도이고, (B)는 영상획득보드의 내부구성도.3 is a block diagram showing the configuration relationship between a CCD camera and an image acquisition board in the image retrieval of the present invention, (A) is an internal configuration diagram of the CCD camera, and (B) is an internal configuration diagram of the image acquisition board.

제4도는 본 발명의 CCD 카메라와 영상획득보드 사이에 오가는 신호선을 표시하는 개략도.4 is a schematic diagram showing signal lines coming and going between a CCD camera and an image acquisition board of the present invention.

Claims (1)

영상데이타를 입력하기 위한 CCD 카메라(4)와, 이 CCD 카메라(4)로부터의 영상출력신호를 처리하여 멀티미디어 PC(3)에 입력시키기 위한 영상획득보드(5)로 구성되는 영상입력기에 있어서, 상기 CCD 카메라(4)는 영상수광을 행하는 CCD(41), 이 CCD(41)의 수직성분을 구동하기 위한 수직 CCD 구동기(43), 상기 CCD(41)로부터 출력된 신호를 받아서 이 신호의 리셋노이즈를 제거하고 신호의 크기에 따라 신호이득을 조종하여 영상신호출력단에 영상신호를 아날로그 신호로서 출력하는 CDS/AGC(42)로 구성되고, 상기 영상획득보드(5)는 상기 영상신호출력단에서 출력된 아날로그신호를 영상입력단을 통해 수신하여 디지탈신호로 변환하는 A/D변환기(53), 이 A/D 변환기(53)로부터 출력된 디지탈신호를 입력하여 처리하여 디지탈칼라신호처리기(52), 이 디지탈칼라신호처리기(52)로부터 출력된 칼라신호를 저장하는 영상메모리소자(51), 상기 A/D 변환기(53), 디지탈칼라신호처리기(52), 영상기억소자(51)에 타이밍신호 및 동기신호를 부여하는 동시에 상기 CCD카메라(4)의 수직CCD구동기(43) 및 CDS/AGC(42)에도 이와 같은 신호를 부여하는 타이밍/동기처리기(54)로 구성되는 것을 특징으로 하는 영상입력기.In a video input device comprising a CCD camera 4 for inputting video data and an image acquisition board 5 for processing the video output signal from the CCD camera 4 and inputting it to the multimedia PC 3, The CCD camera 4 receives a signal output from the CCD 41 which performs image reception, a vertical CCD driver 43 for driving the vertical component of the CCD 41, and a signal output from the CCD 41 and resets the signal. CDS / AGC (42) for removing the noise and controlling the signal gain in accordance with the size of the signal to output the video signal as an analog signal to the video signal output stage, the image acquisition board (5) is output from the video signal output stage An A / D converter 53 for receiving a converted analog signal through a video input terminal and converting the digital signal into a digital signal; a digital color signal processor 52 for inputting and processing a digital signal output from the A / D converter 53; With digital color signal processor 52 The timing signal and the synchronization signal to the image memory device 51, the A / D converter 53, the digital color signal processor 52, and the image storage device 51 which store the output color signal. And a timing / synchronization processor (54) for applying such a signal to the vertical CCD driver (43) and the CDS / AGC (42) of the camera (4). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940016001A 1994-07-05 1994-07-05 Image system KR970011537B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940016001A KR970011537B1 (en) 1994-07-05 1994-07-05 Image system

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Application Number Priority Date Filing Date Title
KR1019940016001A KR970011537B1 (en) 1994-07-05 1994-07-05 Image system

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KR960006496A true KR960006496A (en) 1996-02-23
KR970011537B1 KR970011537B1 (en) 1997-07-11

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KR1019940016001A KR970011537B1 (en) 1994-07-05 1994-07-05 Image system

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