KR920015933A - Color signal processing method and circuit for HDTV - Google Patents

Color signal processing method and circuit for HDTV Download PDF

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Publication number
KR920015933A
KR920015933A KR1019910000307A KR910000307A KR920015933A KR 920015933 A KR920015933 A KR 920015933A KR 1019910000307 A KR1019910000307 A KR 1019910000307A KR 910000307 A KR910000307 A KR 910000307A KR 920015933 A KR920015933 A KR 920015933A
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KR
South Korea
Prior art keywords
output
hdtv
qmf
adder
band
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Application number
KR1019910000307A
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Korean (ko)
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KR940005175B1 (en
Inventor
오훈석
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강진구
삼성전자 주식회사
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Priority to KR1019910000307A priority Critical patent/KR940005175B1/en
Priority to JP4000206A priority patent/JP2635877B2/en
Publication of KR920015933A publication Critical patent/KR920015933A/en
Application granted granted Critical
Publication of KR940005175B1 publication Critical patent/KR940005175B1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/64Circuits for processing colour signals

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

내용 없음No content

Description

HDTV용 칼라 신호 처리방법 및 회로Color signal processing method and circuit for HDTV

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제5도는 본 발명에 따른 엔코딩 회로도, 제6도는 본 발명에 따른 디코딩회로도. 제7도는 칼라신호를 주파수상으로 3차원으로 도시한 것이며 빗금친 부분은 상기 제1도에서 압축시킨 것을 나타낸 도면.5 is an encoding circuit diagram according to the present invention, and FIG. 6 is a decoding circuit diagram according to the present invention. FIG. 7 is a diagram showing a color signal in three dimensions in frequency, and a hatched portion is compressed in FIG.

Claims (3)

HDTV용 칼라 신호 처리 방법에 있어서, 영상신호를 3차원으로 수직, 수평, 시간축에 대해 M의 값으로 소정 밴드를 데시메이션하는 제1과정과, 상기 제1과정에서 데시메이션한 영상을 n영역으로 밴드를 분할하여 n회 데시메이션하는 제2과정과, 상기 제2과정에 n영역으로 분할한 밴드에서 수직과 수평으로 주파수가 낮은 최저역부분에서 DC를 분리하여 디지탈데이타로 전송하는 제3과정과, 상기 제2과정의 분할된 아나로그 신호 출력과 상기 제3과정의 디지탈 데이타를 전송하는 제4과정과, 상기 제4과정의 디지탈 데이타를 보간하는 제5과정과, 상기 제5과정의 보간신호와 상기 제4과정의 아나로그 신호를 수직과 수평 대역별로 보간하는 제6과정과, 상기 제6과정의 출력을 수직, 수평 시간축의 3차원으로 재보간하여 확장하는 제7과정으로 이루어짐을 특징으로 하는 HDTV용 칼라신호 처리방법.A color signal processing method for an HDTV, comprising: a first step of decimating a predetermined band with a value of M with respect to a vertical, horizontal, and time axis in three dimensions; and an image decimated in the first step into an n area. A second process of dividing the band n times and decimating the band; and a third process of separating DC from the lowest frequency portion having a low frequency vertically and horizontally in the band divided into n regions in the second process and transmitting the digital data to digital data; A fourth process of transmitting the divided analog signal output of the second process and the digital data of the third process, a fifth process of interpolating the digital data of the fourth process, and an interpolation signal of the fifth process And a sixth process of interpolating the analog signal of the fourth process by vertical and horizontal bands, and a seventh process of reinterpolating and extending the output of the sixth process in three dimensions of a vertical and horizontal time axis. Color signal processing method for HDTV. HDTV용 영상 처리장치의 엔코더에 있어서, 상기 영상신호 입력을 수평, 수직, 시간축으로 필터링하고 데시메이숀에 의해 소정 압축하는 압축부(501)와, 상기 압축부(501)의 출력을 수평과 수직 방향으로 필터링하고 데시메이숀에 의해 제1-4분할영역(LL,LH,HL,HH)으로 대역을 분랄하는 QMF 분석기(502)와, 상기 QMF 분석기(502)의 제1분할영역(LL)의 값으로 부터 DC성분을 추출하여 디지탈 신호로 전송하는 DC성분추출기(503)와, 상기 QMF 분석기(502)의 제2영역(LL)의 출력값( - )과 상기 DC성분 추출기 (503)의 값 ( + )을 가산하여 제1영역(LL)의 차신호[LL(dif)]로 출력하는 제1가산부(504)로 구성됨을 특징으로 하는 HDTV용 칼라 신호 처리 회로.In the encoder of the HDTV video processing apparatus, a compression unit 501 for filtering the video signal inputs horizontally, vertically, and in time axis, and compressing the video signal predetermined by decimation, and horizontally and vertically outputting the output of the compression unit 501. QMF analyzer 502 which filters in the direction and divides the band into the 1-4 divisions LL, LH, HL, and HH by demeshing, and the first division LL of the QMF analyzer 502. The DC component extractor 503 extracts the DC component from the value of and transmits it as a digital signal, the output value (−) of the second region LL of the QMF analyzer 502 and the value of the DC component extractor 503. And a first adder (504) for adding (+) to output the difference signal (LL (dif)) of the first region (LL). HDTV용 영상 처리 장치의 디코더에 있어서, 상기 DC성분 추출기(503)의 출력을 보간하는 보간기(601)와, 상기 제1가산부(504)의 출력[LL9dif)]과 상기 보간기(601)의 출력을 가산하는 제2가산부(602)와, 상기 제2가산부(602)의 출력 제1분할영역(LL)과 상기 엔코딩에 의한 QMF분석기(502)의 제2-4분할영역(LH, HL, HH)을 역으로 보간과 수직과 수평방향의 QMF필터링에 의해 합성하는 QMF합성기(603)와, 상기 QMF 합성기 (603)의 출력을 수직, 수평 및 시간축 필터링과 보간에 의해 확장하는 확장부(604)로 구성됨을 특지으로 하는 HDTV용 칼라 신호 처리 회로.In the decoder of the image processing apparatus for HDTV, an interpolator 601 for interpolating the output of the DC component extractor 503, an output [LL9dif] of the first adder 504, and the interpolator 601. A second adder 602 for adding an output of the second adder 602, an output first divided region LL of the second adder 602, and a second-4 divided region LH of the QMF analyzer 502 by the encoding. , HL, HH) inversely interpolates and expands the QMF synthesizer 603 by vertical and horizontal QMF filtering, and expands the output of the QMF synthesizer 603 by vertical, horizontal and time-axis filtering and interpolation. The color signal processing circuit for HDTV which consists of a part 604. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019910000307A 1991-01-11 1991-01-11 Method and apparatus for processing color signal for hdtv KR940005175B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019910000307A KR940005175B1 (en) 1991-01-11 1991-01-11 Method and apparatus for processing color signal for hdtv
JP4000206A JP2635877B2 (en) 1991-01-11 1992-01-06 HDTV color signal processing method and circuit thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910000307A KR940005175B1 (en) 1991-01-11 1991-01-11 Method and apparatus for processing color signal for hdtv

Publications (2)

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KR920015933A true KR920015933A (en) 1992-08-27
KR940005175B1 KR940005175B1 (en) 1994-06-11

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KR1019910000307A KR940005175B1 (en) 1991-01-11 1991-01-11 Method and apparatus for processing color signal for hdtv

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JP (1) JP2635877B2 (en)
KR (1) KR940005175B1 (en)

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Publication number Publication date
JPH04317295A (en) 1992-11-09
KR940005175B1 (en) 1994-06-11
JP2635877B2 (en) 1997-07-30

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