KR940010786A - 화면 분할기능을 갖는 디지탈 방식 고선명 텔레비젼 - Google Patents

화면 분할기능을 갖는 디지탈 방식 고선명 텔레비젼 Download PDF

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KR940010786A
KR940010786A KR1019920018395A KR920018395A KR940010786A KR 940010786 A KR940010786 A KR 940010786A KR 1019920018395 A KR1019920018395 A KR 1019920018395A KR 920018395 A KR920018395 A KR 920018395A KR 940010786 A KR940010786 A KR 940010786A
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pixel data
motion vector
screen
division
frame
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KR1019920018395A
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KR0128245B1 (ko
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박학재
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배순훈
대우전자 주식회사
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Priority to US08/133,664 priority patent/US5371549A/en
Priority to JP25201093A priority patent/JPH06209432A/ja
Publication of KR940010786A publication Critical patent/KR940010786A/ko
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/265—Mixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Systems (AREA)
  • Studio Circuits (AREA)

Abstract

본 발명은 디지탈 방식 고선명 텔레비젼에 관한 것으로서, 수신되는 현재프레임의 차분양자화 DCT 계수 가변 길이 부호 구획을 복호장치(30)에서 복호하고, “0”마스킹부(1)에서 화면분할수에 따른 주파수대역으로 저주파 필터링한다. 표본화부(4)는 역 DCT부(21)에 의해 복구된 화상 데이타를 화면의 분할 수에 따라 소화면의 화소데이타들의 표본화된 프레임 화소 데이타들이 프레임 별로 제어부(3)의 제어에 따라 저장된다.
움직임 벡터 보상부(5)는 화면의 분할에 의한 소화면 크기에 따라 움직임 벡터를 보상하고, 예측 및 보간부(8)는 보상된 움직임 벡터에 해당하는 구획의 화소데이타, 또는 보간된 화소 데이타를 출력하게 된다.

Description

화면 분할기능을 갖는 디지탈 방식 고선명 텔레비젼
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제4도는 본 발명의 화면 분할 기능을 갖는 디지탈 방식 고선명 텔레비젼에서 DCT 계수 구획의 “0” 마스킹 상태를 나타내는 도면,
제5도는 본 발명에 따른 화면 분할 기능을 갖는 고선명 텔레비젼에서 예측 및 보간 이행해지는 상태를 나타낸 도면.

Claims (1)

  1. 디지탈 방식 고선명 텔레비젼에 있어서, 소정구획단위로 부호화되어 전송되는 차분양자와 DCT계수 가변 길이 부호 및 움직임 벡터를 복호 및 역양자화 처리하는 복호수단과; 상기 복호된 차분변환계수의 구획을 분할 제어 신호에 따라 소구획으로 분할하고, 분할된 소구획중 DC계수를 포함하는 수구획을 제외한 나머지 영역을 “0” 마스킹하는 마스킹 수단과; 상기 마스킹 수단으로부터 출력되는 차분 구획 변환 계수를 역 DCT 변환시켜 화소데이타로 복구하는 역 DCT수단과; 사용자가의 제어에 따라 가변하는 단위분할신호와 번지 지정신호를 출력하는 제어수단과; 상기 역 DCT수단의 화소데이타를 상기 분할제어신호에 따른 화면 분할수 표본화하는 표본화수단과; 상기 표본화수단으로부터 출력되는 화소데이타들을 상기 번지지정신호에 따른 소정번지에 프레임별로 저장하는 저장수단과; 상기 움직임 벡터를 상기 분할제어신호에 따른 화면 분할수로 구획의 행 및 열을 나누어 보상움직임 벡터로서 출력하는 움직임 벡터 보상수단과; 상기 번지지정신호에 따른 상기 저장수단내 소정번지의 프레임 화소데이타들중 상기 보상 움직임 벡터에 해당하는 구획의 화소데이타들을 출력하고, 상기 보상 움직임 벡터에 해당하는 구획이 없을 때 보간처리된 화소데이타들을 출력하는 예측 및 보간 수단과; 상기 예측 및 보간수단과 표본화수단의 화소데이타를 가산하여 상기 저장수단에 인가하는 가산기를 구비하는 화면분할 표시기능을 갖는 디지탈 방식 고선명 텔레비젼.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920018395A 1992-10-07 1992-10-07 화면 분할 기능을 갖는 디지탈 방식 고선명 텔레비젼 KR0128245B1 (ko)

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KR1019920018395A KR0128245B1 (ko) 1992-10-07 1992-10-07 화면 분할 기능을 갖는 디지탈 방식 고선명 텔레비젼
US08/133,664 US5371549A (en) 1992-10-07 1993-10-07 Decoding method and system for providing digital television receivers with multipicture display by way of zero masking transform coefficients
JP25201093A JPH06209432A (ja) 1992-10-07 1993-10-07 多重映像表示機能を有する高品位ｔｖ受信機のための映像信号処理方法およびそのシステム

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KR1019920018395A KR0128245B1 (ko) 1992-10-07 1992-10-07 화면 분할 기능을 갖는 디지탈 방식 고선명 텔레비젼

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KR100510756B1 (ko) * 1996-05-31 2005-11-21 소니 가부시끼 가이샤 화상복호화장치와 그 방법 및 화상재생장치

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KR19980018430A (ko) * 1996-08-07 1998-06-05 체스킨 제이 엘. 공간 3-d 이미지의 대역 제한된 보간 및 투영방법과 장치

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JPH06209432A (ja) 1994-07-26
US5371549A (en) 1994-12-06

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