KR970012584A - Decoding control device for video compressed disk - Google Patents

Decoding control device for video compressed disk Download PDF

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Publication number
KR970012584A
KR970012584A KR1019950027920A KR19950027920A KR970012584A KR 970012584 A KR970012584 A KR 970012584A KR 1019950027920 A KR1019950027920 A KR 1019950027920A KR 19950027920 A KR19950027920 A KR 19950027920A KR 970012584 A KR970012584 A KR 970012584A
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South Korea
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picture
video
data
frame data
switching
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KR1019950027920A
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Korean (ko)
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KR100188214B1 (en
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김준식
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배순훈
대우전자 주식회사
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

본 발명은 동영상 압축디스크의 디코딩제어장치에 관한 것으로, 비디오디스크(30)로부터 독취되는 정보데이터에서 오디오스트림데이터와 비디오스트림데이터를 분리하는 오디오/비디오분리부(32)와, 상기 분리된 비디오스트림데이터를 버퍼링하는 버퍼부(34), 고속재생모드와 일반재생모드시에 스위칭절환되어 I픽춰와 P픽춰의 저주파성분(ILF, PLF)과 I픽춰와 P픽춰의 고주파성분(IHF, PHF)과 B픽춰를 각각 분리하는 픽춰절환부(36), 상기 분리된 I픽춰와 P픽춰의 저주파성분(ILF, PLF)을 디코딩하여 화소데이터의 형태로 복원하는 제1비디오디코딩수단, 상기 픽춰절환부(36)를 통해 분리된 I픽춰와 P픽춰의 저주파성분(ILF, PLF)과 B픽춰를 디코딩하여 화소의 프레임데이터의 형태로 복원하는 제2비디오디코딩수단(44,46,48), 상기 제2비디오디코딩수단(44,46,48)으로부터의 프레임데이터를 양방향 예측하여 움직임을 보상하는 움직임보상수단(50), 상기 제2비디오디코딩수단(44,46,48)을 통한 프레임데이터와 상기 움직임보상수단(50)에 의해 움직임이 보상된 보간데이터를 가산하는 제1가산수단(52), 상기 제2비디오디코딩수단(44,46,48)을 통한 프레임데이터 또는 상기 가산수단(52)을 통한 프레임데이터를 선택적으로 통과시키는 스위칭수단(54), 상기 제1비디오디코딩수단에 의해 디코딩된 프레임데이터와 상기 스위칭수단(54)을 통과한 프레임데이터를 가산하는 제2가산수단(56), 고속재생모드에 따라 상기 제1비디오디코딩수단으로부터의 프레임데이터를 통과시키거나, 일반재생모드에 따라 상기 제2가산수단(56)을 통한 프레임데이터를 통과시키기 위해 선택적으로 스위칭절환되는 재생속도절환수단(58) 및, 상기 비디오디스크(2)로부터의 시스템헤더정보를 입력받아서 고속재생모드 또는 일반재생모드에 따라 상기 픽춰절환수단(36)과 재생속도절환수단(58)을 스위칭제어하는 제어수단(60)을 구비하여 구성된 것을 특징으로 한다.The present invention relates to a decoding control apparatus for a moving picture compressed disk, comprising: an audio / video separation unit (32) for separating audio stream data and video stream data from information data read from the video disk (30), and the separated video stream. Buffer unit 34 for buffering data, switching in the high speed playback mode and the normal playback mode, so that the low frequency components (I LF , P LF ) of the I picture and the P picture, and the high frequency components (I HF , I) of the I picture and the P picture. A picture switching unit 36 for separating P HF ) and B pictures, and first video decoding means for decoding the low frequency components I LF and P LF of the separated I picture and P picture and reconstructing them in the form of pixel data. Second video decoding means 44 for decoding the low frequency components I LF and P LF of the I picture and the P picture and the B picture separated by the picture switching unit 36 and restoring the frame data of the pixel. 46,48), the second video decoding means 44,46 Motion compensation means 50 for compensating motion by bidirectionally predicting the frame data from (48), frame data through the second video decoding means (44, 46, 48) and motion by the motion compensation means (50). Switching for selectively passing the frame data through the first adding means 52, the second video decoding means 44, 46, 48 or the adding means 52, which adds the compensated interpolation data. Means 54, second adding means 56 for adding the frame data decoded by the first video decoding means and the frame data passing through the switching means 54, the first video decoding in accordance with the fast playback mode. Playback speed switching means 58 which is selectively switched in order to pass the frame data from the means or to pass the frame data through the second adding means 56 in accordance with the normal playback mode; And control means (60) for switching the picture switching means (36) and the playback speed switching means (58) in response to the system header information from the audio disc (2) in accordance with the fast playback mode or the normal playback mode. It is characterized by.

Description

동영상 압축디스크의 디코딩제어장치Decoding control device for video compressed disk

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

제5도는 본 발명에 따른 동영상 압축디스크의 디코딩제어장치의 구성을 나타낸 블록구성도이다.5 is a block diagram showing the configuration of a decoding control apparatus for a moving picture compressed disk according to the present invention.

Claims (2)

I픽춰와 P픽춰의 저주파성분(ILF, PLF) 화면과 고주파성분(IHF, PHF)화면으로 분리되고, 그중 P픽춰의 저주파성분(PLF)은 I코딩되고 고주파성분(PHP)은 P코딩되어 있으며, 해당 픽춰성분에 대한 시스템헤더정보를 갖춘 비디오스트림이 기록된 비디오디스크(2)의 비디오정보데이터를 디코딩하는 디코딩장치에 있어서, 상기 비디오디스크(30)로부터 독취되는 정보데이터에서 오디오스트림데이터와 비디오스트림데이터를 분리하는 오디오/비디오분리부(32)와, 상기 분리된 비디오스트림데이터를 버퍼링 하는 버퍼부(34), 고속재생모드와 일반재생모드시에 스위칭절환되어 I픽춰와 P픽춰의 저주파성분(ILF, PLF) 화면과 I픽춰와 P픽춰의 고주파성분(IHF, PHF)과 B픽춰를 각각 분리하는 픽춰절환부(36), 상기 분리된 I픽춰와 P픽춰의 저주파성분(ILF, PLF)을 디코딩하여 화소데이터의 형태로 복원하는 제1비디오디코딩수단, 상기 픽춰절환부(36)를 통해 분리된 I픽춰와 P픽춰의 저주파성분(ILF, PLF)과 B픽춰를 디코딩하여 화소의 프레임데이터의 형태로 복원하는 제2비디오디코딩수단(44,46,48), 상기 제2비디오디코딩수단(44,46,48)으로부터의 프레임데이터를 양방향 예측하여 움직임을 보상하는 움직임보상수단(50), 상기 제2비디오디코딩수단(44,46,48)을 통한 프레임데이터와 상기 움직임보상수단(50)에 의해 움직임이 보상된 보간데이터를 가산하는 제1가산수단(52), 상기 제2비디오디코딩수단(44,46,48)을 통한 프레임데이터 또는 상기 가산수단(52)을 통한 프레임데이터를 선택적으로 통과시키는 스위칭수단(54), 상기 제1비디오디코딩수단에 의해 디코딩된 프레임데이터와 상기 스위칭수단(54)을 통과한 프레임데이터를 가산하는 제2가산수단(56), 고속재생모드에 따라 상기 제1비디오디코딩수단으로부터의 프레임데이터를 통과시키거나, 일반재생모드에 따라 상기 제2가산수단(56)을 통한 프레임데이터를 통과시키기 위해 선택적으로 스위칭절환되는 재생속도절환수단(58) 및, 상기 비디오디스크(2)로부터의 시스템헤더정보를 입력받아서 고속재생모드 또는 일반재생모드에 따라 상기 픽춰절환수단(36)과 재생속도절환수단(58)을 스위칭제어하는 제어수단(60)을 구비하여 구성된 것을 특징으로 하는 동영상 압축디스크의 디코딩제어장치.Low-frequency component of the I pikchwo and P pikchwo (I LF, P LF) screen and are separated by a high-frequency component (I HF, P HF) screen, a low frequency component of which P pikchwo (P LF) is I coded and high frequency components (P HP ) Is a P-coded, decoding device for decoding video information data of a video disc 2 on which a video stream with system header information for a corresponding picture component is recorded, the information data read from the video disc 30. An audio / video separation unit 32 for separating the audio stream data and the video stream data, a buffer unit 34 for buffering the separated video stream data, and switching in the high speed playback mode and the normal playback mode. And a picture switching unit 36 for separating the low frequency component (I LF , P LF ) picture of the P picture and the high frequency component (I HF , P HF ) and B picture of the I picture and the P picture, respectively, and the separated I picture di-low-frequency components of the P pikchwo (I LF, LF P) Frame of the first video decoding means, wherein the pick-a I pikchwo and P low-frequency component (I LF, P LF), and decodes the B pikchwo pixel of pikchwo separated through chwojeol affected part 36 for grinding to restore in the form of pixel data, Second video decoding means (44,46,48) for reconstructing the data, and motion compensation means (50) for compensating motion by bidirectionally predicting frame data from the second video decoding means (44,46,48). First adding means (52) for adding frame data through the second video decoding means (44, 46, 48) and interpolation data whose motion is compensated by the motion compensating means (50), and the second video decoding. Switching means 54 for selectively passing frame data through means 44, 46, 48 or frame data through said adding means 52, frame data decoded by said first video decoding means and said switching means Frame data passed through (54) The second adding means 56, which passes the frame data from the first video decoding means in accordance with the fast playback mode, or passes the frame data through the second adding means 56 in the normal playback mode. The picture switching means 36 and the playback speed switching means in accordance with the fast playback mode or the normal playback mode by receiving the system header information from the video disc 2, And a control means (60) for switching and controlling the video (58). 제1항에 있어서, 상기 제1비디오디코딩수단은 상기 I픽춰와 P픽춰의 저주파성분(ILF, PLF)을 VLD처리하는 제1가변장디코더(38)와, 상기 VLD처리된 I픽춰와 P픽춰의 저주파성분(ILF, PLF)을 역양자화하여 프레임데이터를 형성하는 역양자화부(40), 상기 역양자화된 프레임데이터를 역DCT처리하는 역DCT부(42)를 포함하여 구성된 것을 특징으로 하는 동영상 압축디스크의 디코딩제어장치.2. The apparatus of claim 1, wherein the first video decoding means comprises: a first variable decoder (38) for VLD processing the low frequency components (I LF , P LF ) of the I picture and the P picture; And an inverse quantization unit 40 for inversely quantizing low frequency components I LF and P LF of a P picture to form frame data, and an inverse DCT unit 42 for inverse DCT processing the inverse quantized frame data. Decoding control device for a video compressed disk characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950027920A 1995-08-31 1995-08-31 Decoding control device of moving picture compression disc KR100188214B1 (en)

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KR1019950027920A KR100188214B1 (en) 1995-08-31 1995-08-31 Decoding control device of moving picture compression disc

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Application Number Priority Date Filing Date Title
KR1019950027920A KR100188214B1 (en) 1995-08-31 1995-08-31 Decoding control device of moving picture compression disc

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KR970012584A true KR970012584A (en) 1997-03-29
KR100188214B1 KR100188214B1 (en) 1999-06-01

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