KR970009417A - Motion prediction device for ultra low speed transmission - Google Patents

Motion prediction device for ultra low speed transmission Download PDF

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Publication number
KR970009417A
KR970009417A KR1019950021500A KR19950021500A KR970009417A KR 970009417 A KR970009417 A KR 970009417A KR 1019950021500 A KR1019950021500 A KR 1019950021500A KR 19950021500 A KR19950021500 A KR 19950021500A KR 970009417 A KR970009417 A KR 970009417A
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KR
South Korea
Prior art keywords
motion
block
signal
frame
noise ratio
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KR1019950021500A
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Korean (ko)
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KR0174442B1 (en
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임종태
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배순훈
대우전자 주식회사
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Priority to KR1019950021500A priority Critical patent/KR0174442B1/en
Publication of KR970009417A publication Critical patent/KR970009417A/en
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Publication of KR0174442B1 publication Critical patent/KR0174442B1/en

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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
    • H04N19/50—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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

본 발명은 거대구획블럭(16×16)과 소구획블럭(8×16)을 이용하여 움직임 예측을 효율적으로 수행하는 움직임 예측장치에관한 것으로, 이를 해결하기 위하여, 거대구획블럭을 근거로 움직임을 예측하고, 이 예측된 프레임과 현프레임간의 신호대 잡음비를 구하는 제1 움직임 예측수단과, 이전프레임을 저장하는 프레임 메모리를 구비한 영상 부호화 장치에 있어서:소구획블럭을 근거로 움직임을 예측하고, 이 예측된 프레임과 현프레임간의 신호대 잡음비를 구하는 제2 움직임 예측수단과, 제1,2 움직임 예측수단의 신호대 잡음비에 의거하여 보상된 움직임 변위를 선택적으로 제공하는 비교선택수단을 구비함으로써, 움직임이 너무 커서 좋은 보상이 안되는 경우에는 더 많은 압축을 할 수 있는 장점이 있다.The present invention relates to a motion prediction device that efficiently performs motion prediction using a large block block (16 × 16) and a small block block (8 × 16). In order to solve this problem, a motion based on the large block block is used. A video encoding apparatus having first motion predicting means for predicting and obtaining a signal-to-noise ratio between the predicted frame and the current frame, and a frame memory for storing a previous frame, comprising: predicting motion based on a small block block, and The second motion predicting means for obtaining a signal-to-noise ratio between the predicted frame and the current frame, and the comparison selecting means for selectively providing a motion displacement compensated based on the signal-to-noise ratios of the first and second motion predicting means, make the motion too much. There is an advantage that more compression can be done if it is not good compensation.

Description

초저속 전송을 위한 움직임 예측장치Motion prediction device for ultra low speed transmission

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

제2도는 본 발명에 따른 초저속 전송을 위한 움직임 예측장치도.2 is a motion prediction apparatus for ultra low speed transmission according to the present invention.

Claims (4)

거대구획블럭을 근거로 움직임을 예측하고, 이 예측된 프레임과 현프레임간의 신호대 잡음비를 구하는 제1움직임 예측수단(100)과, 이전프레임을 저장하는 프레임 메모리(50)을 구비한 영상 부호화 장치에 있어서: 소구획블럭을근거로 움직임을 예측하고, 이 예측된 프레임과 현프레임간의 신호대 잡음비를 구하는 제2 움직임 예측수단(200)과, 상기제1,2 움직임 예측수단(100)(200)의 신호대 잡음비에 의거하여 상기 보상된 움직임 변위를 선택적으로 제공하는 비교선택수단(300)을 구비함을 특징으로 하는 초저속 전송을 위한 움직임 예측장치.A first motion predicting means (100) for predicting motion on the basis of a large block block, obtaining a signal-to-noise ratio between the predicted frame and the current frame, and a frame memory (50) for storing a previous frame. The second motion predicting means (200) for estimating the motion based on the small block block and obtaining the signal-to-noise ratio between the predicted frame and the current frame, and the first and second motion predicting means (100, 200) And a comparison selecting means (300) for selectively providing the compensated movement displacement based on a signal-to-noise ratio. 제1항에 있어서, 상기 제2 움직임 예측수단(200)이 현재 프레임을 8×16, 8×16 화소단위인 소구획블럭으로 분리하는 블럭분리부(220)를 구현됨을 특징으로 하는 초저속 전송을 위한 움직임 예측장치.The ultra-low speed transmission according to claim 1, wherein the second motion predicting means (200) implements a block separation unit (220) for dividing the current frame into small blocks of 8x16 and 8x16 pixel units. Motion prediction device for the. 제1항에 있어서, 상기 비교선택수단(300)이 제1,2 움직임 예측수단(100)(200)으로 부터의 제1,2 신호대 잡음비 값의 비교 결과에 따라 스위칭 제어신호를 출력하는 비교기(32)를 구비함을 특징으로 하는 초저속 전송을 위한 움직임 예측장치.The comparator according to claim 1, wherein the comparison selecting means 300 outputs a switching control signal according to a comparison result of the first and second signal-to-noise ratio values from the first and second motion predicting means 100 and 200 ( 32) A motion prediction device for ultra low speed transmission, characterized in that it comprises. 제3항에 있어서, 상기 비교기(320)는 제1,2 움직임 예측수단(100)(200)에 의해 움직임 보상된 값중 움직임보상 오차값이 작은 어느 한 움직임 예측수단(100)(200)을 선택함을 특징으로 하는 초저속 전송을 위한 움직임 예측장치.The method of claim 3, wherein the comparator 320 selects any one of the motion estimation means 100 and 200 having a small motion compensation error value among the values compensated for by the first and second motion prediction means 100 and 200. Motion prediction device for ultra-low speed transmission, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950021500A 1995-07-21 1995-07-21 Motion prospecting apparatus for low speed transmission KR0174442B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950021500A KR0174442B1 (en) 1995-07-21 1995-07-21 Motion prospecting apparatus for low speed transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950021500A KR0174442B1 (en) 1995-07-21 1995-07-21 Motion prospecting apparatus for low speed transmission

Publications (2)

Publication Number Publication Date
KR970009417A true KR970009417A (en) 1997-02-24
KR0174442B1 KR0174442B1 (en) 1999-03-20

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