KR970068573A - Method and apparatus for implementing soft filter of video recording apparatus - Google Patents

Method and apparatus for implementing soft filter of video recording apparatus Download PDF

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Publication number
KR970068573A
KR970068573A KR1019960005942A KR19960005942A KR970068573A KR 970068573 A KR970068573 A KR 970068573A KR 1019960005942 A KR1019960005942 A KR 1019960005942A KR 19960005942 A KR19960005942 A KR 19960005942A KR 970068573 A KR970068573 A KR 970068573A
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KR
South Korea
Prior art keywords
data
polling
luminance signal
highlighting
detection signal
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KR1019960005942A
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Korean (ko)
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KR0183828B1 (en
Inventor
김효성
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김광호
삼성전자 주식회사
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Priority to KR1019960005942A priority Critical patent/KR0183828B1/en
Publication of KR970068573A publication Critical patent/KR970068573A/en
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Publication of KR0183828B1 publication Critical patent/KR0183828B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/76—Circuitry for compensating brightness variation in the scene by influencing the image signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera

Abstract

본 발명은 SD포맷 영상기록장치의 소프트필터 구현방법 및 장치에 관한 것으로서 특히, 영상화면의 라이징에지와 폴링에지를 검출한 후 데이타를 변조하여 소프트 영상을 생성하는 영상기록장치의 소프트필터 구현방법 및 장치에 관한 것이다.The present invention relates to a method and apparatus for implementing a soft filter of an SD format video recording apparatus, and more particularly, to a soft filter implementation method of an image recording apparatus for generating a soft image by modulating data after detecting a rising edge and a polling edge of an image screen, ≪ / RTI >

입력되는 휘도신호가 높은레벨에서 낮은 레벨로 소정값 이상으로 변동하면 하이라이트 라이징 검출신호를 출력하고, 낮은레벨에서 높은레벨로 소정값 이상으로 변동하면 하이라이트 폴링 검출신호를 출력하는 제1단계; 제1단계에서 출력되는 하이라이트 검출신호를 입력하여 순차적으로 증가하는 라이징 데이타와 순차적으로 감소하는 폴링 데이타를 생성한 후 폴링 데이타를 소정기간 지연시켜 동기를 맞추는 제2단계; 및 입력되는 휘도신호를 소정시간 지연시켜 원래의 데이타의 제2단계에서 출력되는 데이타를 가산하는 제3단계를 포함한다.A first step of outputting a highlighting detection signal when the inputted luminance signal changes from a high level to a low level by a predetermined value or more and outputting a highlighting polling detection signal when the luminance signal changes from a low level to a high level by a predetermined value or more; A second step of inputting the highlight detection signal outputted in the first step to generate sequential rising data and sequentially decreasing polling data and then delaying the polling data by a predetermined period to synchronize; And a third step of delaying an inputted luminance signal by a predetermined time to add data output in the second step of the original data.

따라서 본 발명은 휘도신호의 레벨변동에 따라 하이라이트 검출신호를 검출하고 이에 따라 라이징 데이타와 폴링 데이타를 각각 발생시킨 후 원래의 휘도신호에 가산하므로서 소프트 영상을 표현할 수 있다.Therefore, according to the present invention, the highlight detection signal is detected according to the level variation of the luminance signal, and the rising data and the polling data are generated, respectively, and then added to the original luminance signal to represent the soft image.

Description

영상기록장치의 소프트필터 구현방법 및 장치Method and apparatus for implementing soft filter of video recording apparatus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 의한 영상기록장치의 소프트필터 구현방법으로 설명하기 위한 입력영상, 제2도는 본 발명에의한 소프트필터 구현장치의 구성을 보인 블럭도, 제3도는 제2도에 도시한 제1지연기와 데이타발생기에서의 출력파형을 보인 도면.2 is a block diagram showing a configuration of a soft filter implementation device according to the present invention, FIG. 3 is a block diagram showing a configuration of a soft filter implementation device according to a first embodiment of the present invention, And the output waveforms in the first delay and data generator.

Claims (4)

입력되는 휘도신호가 높은레벨에서 낮은레벨로 소정값 이상으로 변동하면 하이라이트 라이징 검출신호를 출력하고, 낮은레벨에서 높은레벨로 소정값 이상으로 변동하면 하이라이트 폴링 검출신호를 출력하는 제1단계; 상기 제1단계에서 출력되는 하이라이트 검출신호를 입력하여 순차적으로 증가하는 라이징 데이타와 순차적으로 감소하는 폴링 데이타를 생성한 후 폴링 데이타를 소정기간 지연시켜 동기를 맞추는 제2단계; 및 입력되는 휘도신호를 소정시간 지연시켜 원래의 데이타와 상기 제2단계에서 출력되는 데이타를 가산하는 제3단계를 포함하는 영상기록장치의 소프트필터 구현방법.A first step of outputting a highlighting detection signal when the inputted luminance signal changes from a high level to a low level by a predetermined value or more and outputting a highlighting polling detection signal when the luminance signal changes from a low level to a high level by a predetermined value or more; A second step of inputting the highlight detection signal outputted in the first step to generate sequential rising data and sequentially decreasing polling data and then delaying the polling data by a predetermined period to synchronize; And a third step of delaying an inputted luminance signal by a predetermined time to add original data and data output in the second step. 아날로그 휘도신호를 입력받아 디지탈신호로 변환하는 A/D변환부; 상기 A/D변환부에서 출력되는 휘도신호의 레벨이 소정값 이상으로 변동하면 하이라이트 검출신호를 출력하는 하이라이트 검출부; 하이라이트 검출신호를 입력받아 라이징 데이타와 폴링 데이타를 생성하는 데이타 발생부; 클럭신호의 동기를 맞추기 위하여, 상기 A/D변환부에서 출력되는 디지탈 휘도신호를 소정시간 지연시키는 지연부; 및 상기 지연부에서 출력되는 원화상과 상기 데이타 발생부에서 출력되는 데이타를 가산하는 가산부를 포함하는 영상기록장치의 소프트필터 구현장치.An A / D converter for receiving an analog luminance signal and converting the analog luminance signal into a digital signal; A highlight detection unit for outputting a highlight detection signal when the level of the luminance signal output from the A / D conversion unit fluctuates by a predetermined value or more; A data generation unit receiving the highlight detection signal and generating rising data and polling data; A delay unit for delaying the digital luminance signal output from the A / D conversion unit for a predetermined time in order to synchronize the clock signal; And an adding unit for adding the original image output from the delay unit and the data output from the data generating unit. 제2항에 있어서, 상기 하이라이트 검출부는 상기 A/D변환기에서 출력되는 휘도신호의 레벨변동에 따라서 하이라이트 라이징 부분을 검출하는 하이라이트 라이징 검출기와, 하이라이트 폴링 부분을 검출하는 하이라이트 폴링 검출기를 포함하는 영상기록장치의 소프트필터 구현장치.The image recording apparatus according to claim 2, wherein the highlight detection unit comprises a highlighting detector for detecting a highlighting portion in accordance with a level variation of a luminance signal output from the A / D converter, and a highlight polling detector for detecting a highlighting polling portion A device for implementing a soft filter of a device. 제2항에 있어서, 상기 데이타 발생부는 하이라이트 라이징 검출신호를 입력받아 순차적으로 증가하는 라이징 데이타를 생성하는 라이징 데이타 발생기와, 하이라이트 폴링 검출신호를 입력받아 순차적으로 감소하는 폴링 데이타를 생성하는 폴링 데이타 발생기와, 폴링 데이타를 소정기간 지연시켜 동기를 맞추는 지연기를 포함하는 영상기록장치의 소프트필터 구현장치.3. The apparatus of claim 2, wherein the data generating unit comprises: a rising data generator for receiving the highlighting detection signal and generating rising data sequentially, a polling data generator for generating a polling data, And a delay unit for delaying the polling data by a predetermined period to synchronize the data. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960005942A 1996-03-07 1996-03-07 Method and apparatus for implementation soft filter of image recording device KR0183828B1 (en)

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KR1019960005942A KR0183828B1 (en) 1996-03-07 1996-03-07 Method and apparatus for implementation soft filter of image recording device

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KR1019960005942A KR0183828B1 (en) 1996-03-07 1996-03-07 Method and apparatus for implementation soft filter of image recording device

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KR0183828B1 KR0183828B1 (en) 1999-05-01

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