KR950026255A - Improved higher layer motion vector transmission apparatus and method using hierarchical coding - Google Patents

Improved higher layer motion vector transmission apparatus and method using hierarchical coding Download PDF

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KR950026255A
KR950026255A KR1019940003711A KR19940003711A KR950026255A KR 950026255 A KR950026255 A KR 950026255A KR 1019940003711 A KR1019940003711 A KR 1019940003711A KR 19940003711 A KR19940003711 A KR 19940003711A KR 950026255 A KR950026255 A KR 950026255A
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motion vector
estimated
higher layer
layer
variable length
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KR1019940003711A
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KR970004924B1 (en
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김종락
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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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream

Abstract

계층적 부호화를 이용한 상위 계층의 효율적인 움직임 벡터 전송 장치가 개시된다.An efficient motion vector transmission apparatus of a higher layer using hierarchical coding is disclosed.

이러한 장치는 이전 프레임의 구획과 현재 프레임의 구획을 입력하여 하위 계층(lower layer)의 움직임 벡터(motion vector)를 추정하고, 상위계층의 움직임 벡터를 추정하며, 상기 하위 계층의 움직임 벡터를 이용하여 상위 계층(upper layer)의 움직임 벡터를 추정하고, 추정된 움직임 벡터값을 가변길이 부호 테이블에 의해 전송에 필요한 비트를 할당하므로서, 비트량을 감소하기 위한 것으로, 상기 추정된 하위 계층의 움직임 벡터와 이전 프레임의 구획을 입력하여 상위 계층의 움직임 벡터를 예측하는 상위 계층 움직임 벡터 예측 수단과 ; 상기 추정된 상위 계층의 움직임 벡터와 하위 계층의 움직임 벡터를 이용하여 상기 상위 계층 움직임 벡터 예측 수단에서 추정된 움직임 벡터의 차값을 산출하는 감산 수단과 ; 상기 감산수단에서 제공되는 움직임 벡터값에 대응하는 코트를 상기 가변길이 부호 테이블의 의거 할당하는 가변 길이 부호화 수단을 포함하므로서, 데이터 전송 효율을 크게 개선시킬 수가 있다.Such a device inputs a partition of a previous frame and a partition of a current frame to estimate a motion vector of a lower layer, estimates a motion vector of a higher layer, and uses the motion vector of the lower layer. In order to reduce the amount of bits by estimating the motion vector of the upper layer and allocating the bits necessary for transmission by using the variable length code table, the estimated motion vector value and the estimated motion vector of the lower layer Higher layer motion vector prediction means for predicting a motion vector of a higher layer by inputting a partition of a previous frame; Subtraction means for calculating a difference value of the motion vector estimated by the higher layer motion vector predicting means using the estimated higher motion vector and lower motion vector; By including variable length encoding means for allocating a coat corresponding to the motion vector value provided by the subtraction means based on the variable length code table, data transmission efficiency can be greatly improved.

Description

계층적 부호화를 이용한 개선된 상위계층의 움직임 벡터 전송 장치 및 방법Improved higher layer motion vector transmission apparatus and method using hierarchical coding

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

제1도는 본 발명에 따른 계층적 부호화를 이용한 개선된 상위 계층의 움직임 벡터 전송 장치 및 방법을 예시하는 도면.1 is a diagram illustrating an improved upper layer motion vector transmission apparatus and method using hierarchical coding according to the present invention.

Claims (2)

이전 프레임의 구획과 현재 프레임의 구획을 입력하여 하위 계층 (lower layer)의 움직임 벡터(motion vector)를 추정하고, 상위계층의 움직임 벡터를 추정하며, 상기 하위 계층의 움직임 벡터를 이용하여 상위 계층(upper layer)의 움직임 벡터를 추정하고, 추정된 움직임 벡터값을 가변길이 부호 테이블에 의해 전송에 필요한 비트를 할당하므로서, 비트량을 감소하기 위한 것으로, 상기 추정된 하위 계층의 움직임 벡터와 이전 프레임의 구획을 입력하여 상위 계층의 움직임 벡터를 예측하는 상위 계층 움직임 벡터 예측 수단과 ; 상기 추정된 상위 계층의 움직임 벡터와 하위 계층의 움직임 벡터를 이용하여 상기 상위 계층 움직임 벡터 예측 수단에서 추정된 움직임 벡터의 차값을 산출하는 감산 수단과 ; 상기 감산수단에서 제공되는 움직임 벡터값에 대응하는 코트를 상기 가변길이 부호 테이블의 의거 할당하는 가변 길이 부호화 수단을 포함하는 계층적 부호화를 이용한 상위계층의 효율적 움직임 벡터 전송장치.The motion vector of the lower layer is estimated, the motion vector of the higher layer is estimated, the motion vector of the lower layer is input by inputting the partition of the previous frame and the partition of the current frame. to reduce the amount of bits by estimating a motion vector of an upper layer and allocating bits necessary for transmission by using the variable length code table. Higher layer motion vector prediction means for inputting a partition to predict a motion vector of a higher layer; Subtraction means for calculating a difference value of the motion vector estimated by the higher layer motion vector predicting means using the estimated higher motion vector and lower motion vector; And a variable length encoding means for allocating a coat corresponding to a motion vector value provided by the subtraction means based on the variable length code table. 이전 프레임의 구획과 현재 프레임의 구획을 입력하여 하위 계층의 움직임 벡터를 추정하고, 상위계층의 움직임 벡터를 추정하며, 상위계층의 움직임 벡터를 추정하며, 상기 하위 계층의 움직임 벡터를 이용하여 상위 계층의 움직임 벡터를 추정하고, 추정된 움직임 벡터값을 가변길이 부호 테이블에 의해 전송에 필요한 비트를 할당하므로서, 비트량을 감소하기 위한 것으로, 상기 추정된 하위 계층의 움직임 벡터와 이전 프레임의 구획을 입력하여 상위 계층의 움직임 벡터를 예측하는 단계와 ; 상기 추정된 상위 계층의 움직임 벡터와 하위 계층의 움직임 벡터를 이용하여 상기 상위 계층 움직임 벡터 예측 단계에서 추정된 움직임 벡터의 차이값을 산출하는 단계와 ; 상기 차이값을 산출하는 단계에서 제공되는 움직임 벡터값에 대응하는 코트를 상기 가변길이 부호 테이블에 의거 할당하는 단계를 포함하는 계층적 부호화를 이용한 상위계층의 효율적 움직임 벡터 전송방법.The motion vector of the lower layer is estimated, the motion vector of the higher layer is estimated, the motion vector of the higher layer is estimated, and the higher layer is obtained using the motion vector of the lower layer. Inputting the motion vector of the estimated lower layer and the partition of the previous frame to reduce the amount of bits by estimating a motion vector of M and assigning the bits necessary for transmission by using the variable length code table. Predicting a motion vector of a higher layer; Calculating a difference value of the motion vector estimated in the higher layer motion vector prediction step using the estimated higher motion vector and lower motion vector; And assigning a coat corresponding to the motion vector value provided in the step of calculating the difference value based on the variable length code table. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940003711A 1994-02-28 1994-02-28 Improved motion vector transmission apparatus and method using layered coding KR970004924B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100392379B1 (en) * 1997-07-09 2003-11-28 주식회사 팬택앤큐리텔 Scalable method for encoding and decoding binary images using modes of lower layer and current layer, and apparatus therefor
KR100468950B1 (en) * 1997-07-09 2005-04-06 주식회사 팬택앤큐리텔 How to Implement QualityScalability Using Probability Tables Used for CAE
KR100703776B1 (en) * 2005-04-19 2007-04-06 삼성전자주식회사 Method and apparatus of context-based adaptive arithmetic coding and decoding with improved coding efficiency, and method and apparatus for video coding and decoding including the same
KR100725407B1 (en) * 2005-07-21 2007-06-07 삼성전자주식회사 Method and apparatus for video signal encoding and decoding with directional intra residual prediction
KR100763205B1 (en) * 2006-01-12 2007-10-04 삼성전자주식회사 Method and apparatus for motion prediction using motion reverse
KR100791299B1 (en) * 2006-04-11 2008-01-04 삼성전자주식회사 Multi-layer based video encoding method and apparatus thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100392379B1 (en) * 1997-07-09 2003-11-28 주식회사 팬택앤큐리텔 Scalable method for encoding and decoding binary images using modes of lower layer and current layer, and apparatus therefor
KR100468950B1 (en) * 1997-07-09 2005-04-06 주식회사 팬택앤큐리텔 How to Implement QualityScalability Using Probability Tables Used for CAE
KR100703776B1 (en) * 2005-04-19 2007-04-06 삼성전자주식회사 Method and apparatus of context-based adaptive arithmetic coding and decoding with improved coding efficiency, and method and apparatus for video coding and decoding including the same
KR100725407B1 (en) * 2005-07-21 2007-06-07 삼성전자주식회사 Method and apparatus for video signal encoding and decoding with directional intra residual prediction
KR100763205B1 (en) * 2006-01-12 2007-10-04 삼성전자주식회사 Method and apparatus for motion prediction using motion reverse
KR100791299B1 (en) * 2006-04-11 2008-01-04 삼성전자주식회사 Multi-layer based video encoding method and apparatus thereof

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