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KR960028458A - Video video encoding device - Google Patents

Video video encoding device Download PDF

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Publication number
KR960028458A
KR960028458A KR1019940035675A KR19940035675A KR960028458A KR 960028458 A KR960028458 A KR 960028458A KR 1019940035675 A KR1019940035675 A KR 1019940035675A KR 19940035675 A KR19940035675 A KR 19940035675A KR 960028458 A KR960028458 A KR 960028458A
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South Korea
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signal
intra
variance
video signal
macroblock
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KR1019940035675A
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Korean (ko)
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KR100317355B1 (en
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신광영
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구자홍
엘지전자 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/19—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding using optimisation based on Lagrange multipliers
    • 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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • H04N19/10—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
    • H04N19/127—Prioritisation of hardware or computational resources
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/60—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

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

Abstract

본 발명은 동화상 비디오 부호화 장치에 관한 것으로서, 이는 엠피이지 부호화기에서의 움직임 추정부를 삭제하고 대신에 인트라/인터모드를 추가하여 인트라/인터 모드 결정시 영상의 움직임에 따라 가변적으로 변하는 임계값을 이용 움직임 보상의 오차감쇠를 조절하도록 한 것이다.The present invention relates to a moving picture encoding apparatus, which removes a motion estimator from an MPEG encoder and instead adds an intra / inter mode to use a threshold value that is variably changed according to the motion of an image when determining an intra / inter mode. It is to adjust the error attenuation of compensation.

이와같은 본 발명은 입력 영상신호와, 그 입력 영상신호와 움직임 보상된 신호와의 차신호를 입력받아 두 신호를 비교하여 인트라 및 인터 모드를 결정하는 인트라/인터모드 결정수단과; 상기 인트라/인터모드 결정수단에서 얻어진 모드에 따라 움직임 보상된 신호와 복호화되어 입력되는 영상신호와의 합신호를 움직임 보상 또는 움직임 보상없이 상기 입력 영상신호의 차신호 대상으로 출력하는 움직임 보상수단과; 를 포함으로서 달성된다.The present invention includes an intra / inter mode determining means for receiving an input video signal and a difference signal between the input video signal and a motion compensated signal and comparing the two signals to determine intra and inter modes; Motion compensation means for outputting a sum signal between a motion compensated signal and a decoded video signal according to a mode obtained by the intra / inter mode determining means to a difference signal object of the input video signal without motion compensation or motion compensation; It is achieved by including.

Description

동화상 비디오 부호화 장치Video video encoding device

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

제2도는 본 발명 엠피이지 비디오 부호기의 구성도, 제3도는 제2도에 의한 인터/인트라 모드 결정 곡선도, 제4도는 제2도의 인트라모드 결정부에서의 인트라 모드 결정시에 사용되는 임계값의 결정 곡선도.FIG. 2 is a block diagram of the present invention video video encoder, FIG. 3 is an inter / intra mode decision curve diagram according to FIG. 2, and FIG. 4 is a threshold value used for intra mode determination in the intra mode determination section of FIG. Crystal curve.

Claims (6)

입력 영상신호와, 그 입력 영상신호와 움직임 보상된 신호와의 차신호를 입력받아 두 신호를 비교하여 인트라 및 인터 모드를 결정하는 인트라/인터모드 결정수단과; 상기 인트라/인터모드 결정수단에서 얻어진 모드에 따라 움직임 보상된 신호와 복호화되어 입력되는 영상신호와의 합신호를 움직임 보상 또는 움직임 보상없이 상기 입력 영상신호의 차신호 대상으로 출력하는 움직임 보상수단과; 를 포함하여 된 동화상 비디오 부호화 장치.Intra / inter mode determination means for receiving an input video signal and a difference signal between the input video signal and a motion compensated signal and comparing the two signals to determine intra and inter modes; Motion compensation means for outputting a sum signal between a motion compensated signal and a decoded video signal according to a mode obtained by the intra / inter mode determining means to a difference signal object of the input video signal without motion compensation or motion compensation; Moving picture encoding apparatus comprising a. 제1항에 있어서, 움직임 보상수단은 상기 움직임 보상된 신호와 복호화되어 얻어진 영상신호와의 합신호를 프레임 단위로 저장하는 프레임 메모리와; 상기 인트라/인터모드 결정수단에서 결정된 모드에 따라 설정된 영상신호 또는 상기 프레임 메모리에 저장된 이전의 1프레임 영상정보를 선택하여 또는 상기 프레임 메모리에 저장된 이전의 1프레임 영상정보를 선택하여 출력하는 선택수단으로 구성함을 특징으로 한 동화상 비디오 부호화 장치.The apparatus of claim 1, further comprising: a frame memory for storing a sum signal of the motion compensated signal and the decoded video signal in units of frames; Selection means for selecting a video signal set according to the mode determined by the intra / inter mode determining means or previous one-frame video information stored in the frame memory or selecting and outputting previous one-frame video information stored in the frame memory. Moving picture encoding apparatus, characterized in that the configuration. 제1항에 있어서, 상기 인트라/인터모드 결정수단은 입력 현재의 영상신호의 현재 매크로 블록 분산(Var-c)과 차신호의 차 매크로블록 분산(Var-d)을 가변 임계값과 비교하여 차 매크로블록 분산이 가변 임계값이하일 경우 인터모드로 결정하는 것을 특징으로 한 동화상 비디오 부호화 장치.2. The apparatus of claim 1, wherein the intra / inter mode determining means compares the current macroblock variance (Var-c) of the input current video signal with the difference macroblock variance (Var-d) of the difference signal with a variable threshold. And a macroblock variance is less than or equal to a variable threshold. 제1항 또는 제3항에 있어서, 인트라/인터모드 결정수단은 현재의 영상신호의 현재 매크로 블록 분산(Var-c)과 차신호의 차 매크로블록 분산(Var-d)을 비교하여 현재 매크로 블록 분산이 차 매크로블록 분산 보다 작으면 인트라 모드로, 크면 인터모드로 결정하는 것을 특징으로 한 동화상 비디오 부호화 장치.The method according to claim 1 or 3, wherein the intra / inter mode determining means compares the current macroblock variance (Var-c) of the current video signal with the difference macroblock variance (Var-d) of the difference signal, and compares the current macroblock. And the variance is determined to be intra mode when the variance is less than the difference macroblock variance, and when the variance is large, the moving picture encoding apparatus. 제3항에 있어서, 가변 임계값은 이전의 코딩화된 영상의 각 매크로블록별 차 매크롤블록 분산값을 모두 더하여 이값에 반비례한 값인 것을 특징으로 한 동화상 비디오 부호화 장치.4. The video encoding apparatus of claim 3, wherein the variable threshold is a value inversely proportional to the difference macroblock variance value of each macroblock of the previous coded image. 제3항에 있어서, 가변 임계값은 매크로블록의 32내지 96범위내인 것을 특징으로 한 동화상 비디오 부호화 장치.4. A moving picture encoding apparatus according to claim 3, wherein the variable threshold is in a range of 32 to 96 of a macroblock. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940035675A 1994-12-21 1994-12-21 System for encoding motion picture video signals KR100317355B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100657277B1 (en) * 2004-09-02 2006-12-14 삼성전자주식회사 Macroblock Type Determination Method
KR100773761B1 (en) * 2006-09-14 2007-11-09 한국전자통신연구원 Video encoding apparatus and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100451584B1 (en) * 2001-12-20 2004-10-08 엘지전자 주식회사 Device for encoding and decoding a moving picture using of a wavelet transformation and a motion estimation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100657277B1 (en) * 2004-09-02 2006-12-14 삼성전자주식회사 Macroblock Type Determination Method
KR100773761B1 (en) * 2006-09-14 2007-11-09 한국전자통신연구원 Video encoding apparatus and method
US8144770B2 (en) 2006-09-14 2012-03-27 Electronics And Telecommunications Research Institute Apparatus and method for encoding moving picture

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