KR970025160A - Compatible video encoder - Google Patents

Compatible video encoder Download PDF

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Publication number
KR970025160A
KR970025160A KR1019950038528A KR19950038528A KR970025160A KR 970025160 A KR970025160 A KR 970025160A KR 1019950038528 A KR1019950038528 A KR 1019950038528A KR 19950038528 A KR19950038528 A KR 19950038528A KR 970025160 A KR970025160 A KR 970025160A
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KR
South Korea
Prior art keywords
frame
predicted
motion predictor
current
motion
Prior art date
Application number
KR1019950038528A
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Korean (ko)
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KR0181067B1 (en
Inventor
이상일
Original Assignee
배순훈
대우전자 주식회사
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Priority to KR1019950038528A priority Critical patent/KR0181067B1/en
Publication of KR970025160A publication Critical patent/KR970025160A/en
Application granted granted Critical
Publication of KR0181067B1 publication Critical patent/KR0181067B1/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
    • H04N19/42—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
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/172—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 picture, frame or field
    • 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

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

Abstract

본 발명은 송신측 부호기과 동일하지 않은 압축기법이 수신축복호기에서 채용되어 있을 경우에도, 이를 수용하여 영상데이타를 부호화하는 부호화기에 관한 것으로, 이를 해결하기 위하여 현재 프레임(n)과 이전 프레임(n-1)간에 의거하여 예측된 프레임(A)을 구현하고, 상기 현재 프레임(n)과 앞선 프레임(n+1)에 의거하여 예측된 프레임(B)을 구현하며, 이로부터 각각의 프레임(A)(B)을 선택적으로 제공하는 움직임 예측부와, 이 예측된 프레임(A)을 저장 및 복원하는 제1 프레임 메모리 이로부터 복원된 현재 및 이전 프레임간의 예측된 프레임(A)과 예측된 프레임(B)에 의거하여 간축된 프레임을 출력하는 제1움직임 예측부, 제1 움직임 예측부에 의해 예측된 움직임 변위정보를 가변길이 부호화는 제1 VLC로 구성함으로써 수신축 복호기와 송신측 부호기간의 다른 압측기법이 사용될 경우에도 효율적인 부호화가 가능한 효과가 있다.The present invention relates to an encoder which encodes image data by receiving a compression method which is not identical to the transmitting encoder, even if the receiving encoder is adopted. In order to solve this problem, the present frame (n) and the previous frame (n−) are solved. Implement the predicted frame (A) based on 1), and implement the predicted frame (B) based on the current frame (n) and the preceding frame (n + 1), from which each frame (A) A motion predictor for selectively providing (B) and a first frame memory for storing and restoring the predicted frame A, and the predicted frame A and the predicted frame B between the current and previous frames recovered from the first frame memory. The first motion predictor outputs the reduced frame based on the < RTI ID = 0.0 >), and the variable length coding comprises the first VLC for the motion displacement information predicted by the first motion predictor. ≪ / RTI > Even when other compression techniques are used, efficient coding can be achieved.

Description

호환성을 갖는 동영상 부호화기Compatible video encoder

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

제2도는 본 발명에 따른 호환성을 갖는 동영상 부호화 장치도.2 is a video encoding apparatus having compatibility according to the present invention.

Claims (1)

현재 프레임과 이전 프레임에 의거하여 예측된 프레임을 검출하며, 상기 예측된 프레임과 입력되는 현재 프레임간의 차분신호를 근거로 하여 부호화하는 동영상 부호화장치에 있어서 ; 상기 현재 프레임(n)과 이전 프레임 (n-1)간에 의거하여 예측된 프레임(A)을 구현하고, 상기 현재 프레임(n)과 이 프레임보다 앞선 프레임(n+1)간에 의거하여 예측된 프레임(B)을 구현하여 이 구현된 각각의 프레임(A)(B)을 선택적으로 제공하는 움직임 예측부(207)와; 상기 움직임 예측부(207)로부터 제공되는 상기 예측된 프레임(A)을 저장 및 복원하여 출력하는 제1 프레임 메모리 (301)와; 상기 제 1 프레임 메모리(301)로부터 복원된 현재 및 이전 프레임간의 예측된 프레임(A)과 상기 움직임 예측부(207)로부터 제공되는 예측된 프레임(B)에 의거하여 간축된 프레임을 출력하는 제1움직임 예측부(302)와; 상기 제1 움직임 예측부(302)에 의해 예측된 움직임 변위 정보를 가변길이 부호화하는 제1VLC(303)를 포함함을 특징으로 하는 호환성을 갖는 동영상 부호화기.A video encoding apparatus for detecting a predicted frame based on a current frame and a previous frame, and encoding the encoded frame based on a difference signal between the predicted frame and an input current frame; A frame A predicted based on the current frame n and the previous frame n-1 is implemented, and a frame predicted based on the current frame n and a frame n + 1 preceding this frame. A motion predictor 207 for implementing (B) to selectively provide each implemented frame (A) (B); A first frame memory (301) for storing, restoring and outputting the predicted frame (A) provided from the motion predictor (207); A first frame outputting a reduced frame based on the predicted frame A between the current and previous frames reconstructed from the first frame memory 301 and the predicted frame B provided from the motion predictor 207. A motion predictor 302; And a first VLC (303) for variable length encoding the motion displacement information predicted by the first motion predictor (302).
KR1019950038528A 1995-10-31 1995-10-31 Moving picture encoder of having compatibility KR0181067B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950038528A KR0181067B1 (en) 1995-10-31 1995-10-31 Moving picture encoder of having compatibility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038528A KR0181067B1 (en) 1995-10-31 1995-10-31 Moving picture encoder of having compatibility

Publications (2)

Publication Number Publication Date
KR970025160A true KR970025160A (en) 1997-05-30
KR0181067B1 KR0181067B1 (en) 1999-05-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101364919B1 (en) * 2006-07-14 2014-02-20 소니 주식회사 Image processing device, method, and recording medium
KR101389127B1 (en) * 2010-05-06 2014-04-28 니폰덴신뎅와 가부시키가이샤 Video encoding control method and apparatus
US9179165B2 (en) 2010-05-07 2015-11-03 Nippon Telegraph And Telephone Corporation Video encoding control method, video encoding apparatus and video encoding program

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101364919B1 (en) * 2006-07-14 2014-02-20 소니 주식회사 Image processing device, method, and recording medium
KR101389127B1 (en) * 2010-05-06 2014-04-28 니폰덴신뎅와 가부시키가이샤 Video encoding control method and apparatus
US9179154B2 (en) 2010-05-06 2015-11-03 Nippon Telegraph And Telephone Corporation Video encoding control method and apparatus
US9179165B2 (en) 2010-05-07 2015-11-03 Nippon Telegraph And Telephone Corporation Video encoding control method, video encoding apparatus and video encoding program

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KR0181067B1 (en) 1999-05-01

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