KR960036738A - Compatible Coder Using Grid Vector Quantization - Google Patents

Compatible Coder Using Grid Vector Quantization Download PDF

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Publication number
KR960036738A
KR960036738A KR1019950007351A KR19950007351A KR960036738A KR 960036738 A KR960036738 A KR 960036738A KR 1019950007351 A KR1019950007351 A KR 1019950007351A KR 19950007351 A KR19950007351 A KR 19950007351A KR 960036738 A KR960036738 A KR 960036738A
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South Korea
Prior art keywords
video signal
frame memory
resolution video
low resolution
outputting
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KR1019950007351A
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Korean (ko)
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KR100192779B1 (en
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윤성욱
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배순훈
대우전자 주식회사
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    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/94—Vector quantisation
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

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

Abstract

본 발명은 격자벡터양자화를 이용한 호환 부호기에 관한 것으로, 입력영상신호를 저장하는 제1 프레임 메모리(10)와; 상기 제1 프레임 메모리(10)의 영상신호를 서브샘플링하여 저해상도 영상신호로 만드는 서브샘플러(11); 상기 서브샘플러(11)의 저해상도 영상신호를 저장하는 제2 프레임 메모리(12); 상기 제2 프레임 메모리(12)의 저해상도 영상신호를 TS 벡터양자화하여 출력하는 TS 벡터양자호 부호기(13); 상기 TS 벡터양자화 부호기(13)의 부호화된 영상시퀀스를 입력한 후 TS VQ 복호하여 저해상도의 영상신호로 재생하는 TS VQ 복호기(14); 상기 재생된 저해상도 영상신호를 보간(interpolation)하여 확대하는 보간기(15); 상기 제1 프레임 메모리(10)의 고해상도 영상데이타로부터 보간 및 재생된 영상신호를 감산하여 차 영상을 출력하는 감산기(16); 상기 감산기(16)의 차영상을 격자벡터양자화(LVQ)하여 출력하는 격자벡터양자화기(LVQ)로 구성되어 효율적으로 호환 부호화를 실행한다.The present invention relates to a compatible encoder using grid vector quantization, comprising: a first frame memory (10) for storing an input video signal; A subsampler 11 subsampling the video signal of the first frame memory 10 into a low resolution video signal; A second frame memory 12 for storing the low resolution video signal of the subsampler 11; A TS vector quantum coder (13) for quantizing and outputting a TS vector quantized low-resolution video signal of the second frame memory (12); A TS VQ decoder (14) which inputs the encoded video sequence of the TS vector quantizer coder (13) and then decodes the TS VQ to reproduce a low resolution video signal; An interpolator 15 for interpolating and expanding the reproduced low resolution video signal; A subtractor 16 for subtracting the interpolated and reproduced image signals from the high resolution image data of the first frame memory 10 and outputting a difference image; It consists of a lattice vector quantizer (LVQ) for outputting the difference image of the subtractor 16 by lattice vector quantization (LVQ) to efficiently perform compatible encoding.

Description

격자벡터양자화를 이용한 호환 부호기Compatible Coder Using Grid Vector Quantization

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

제1도는 본 발명에 따른 호환 부호기를 도시한 블럭도이다.1 is a block diagram showing a compatible encoder according to the present invention.

Claims (1)

입력영상신호를 고해상도 영상신호와 저해상도 영상신호로 나누어 부호화하는 호환 부호기에 있어서, 입력영상신호를 저장하는 제1 프레임 메모리(10)와; 상기 제1 프레임 메모리의 영상신호를 서브샘플링하여 저해상도 영상신호로 만드는 서브샘플러(11); 상기 서브샘플러의 저해상도 영상신호를 저장하는 제2 프레임 메모리(12); 상기 제2 프레임 메모리(12)의 저해상도 영상신호를 TS 벡터양자화하여 출력하는 TS 벡터양자화 부호기(13); 상기 TS 벡터양자화 부호기의 부호화된 영상시퀀스를 입력한 후 TS VQ 복호하여 저해상도 영상신호를 재생하는 TS VQ 복호기(14); 상기 재생된 저해상도 영상신호를 보간하여 확대하는 보간기(15); 상기 제1 프레임 메모리의 고해상도 영상데이타로부터 보간 및 재생된 영상신호를 감산하여 차영상을 출력하는 감산기(16); 상기 감산기의 차영상을 격자벡터양자화(LVQ)하여 출력하는 격자벡터양자화기(LVQ)(17)로 구성되는 격자벡터양자화를 이용한 호환 부호기.A compatible encoder for dividing and encoding an input video signal into a high resolution video signal and a low resolution video signal, comprising: a first frame memory (10) for storing the input video signal; A subsampler 11 subsampling the video signal of the first frame memory into a low resolution video signal; A second frame memory 12 for storing the low resolution video signal of the subsampler; A TS vector quantization encoder (13) for quantizing and outputting a TS vector quantized low-resolution video signal of the second frame memory (12); A TS VQ decoder (14) for inputting the encoded video sequence of the TS vector quantizer coder and decoding the TS VQ to reproduce a low resolution video signal; An interpolator 15 for interpolating and expanding the reproduced low resolution video signal; A subtractor 16 for subtracting the interpolated and reproduced image signals from the high resolution image data of the first frame memory and outputting a difference image; And a lattice vector quantizer (LVQ) for outputting the difference image of the subtractor by lattice vector quantization (LVQ). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950007351A 1995-03-31 1995-03-31 A compatible encoder using lattice vector quantization KR100192779B1 (en)

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KR1019950007351A KR100192779B1 (en) 1995-03-31 1995-03-31 A compatible encoder using lattice vector quantization

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KR960036738A true KR960036738A (en) 1996-10-28
KR100192779B1 KR100192779B1 (en) 1999-06-15

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