KR950020275A - Video decoding device - Google Patents

Video decoding device Download PDF

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Publication number
KR950020275A
KR950020275A KR1019930028000A KR930028000A KR950020275A KR 950020275 A KR950020275 A KR 950020275A KR 1019930028000 A KR1019930028000 A KR 1019930028000A KR 930028000 A KR930028000 A KR 930028000A KR 950020275 A KR950020275 A KR 950020275A
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KR
South Korea
Prior art keywords
frame
image data
frame memory
discrete cosine
inverse discrete
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Application number
KR1019930028000A
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Korean (ko)
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KR0130452B1 (en
Inventor
윤상호
Original Assignee
배순훈
대우전자 주식회사
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Priority to KR1019930028000A priority Critical patent/KR0130452B1/en
Publication of KR950020275A publication Critical patent/KR950020275A/en
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Publication of KR0130452B1 publication Critical patent/KR0130452B1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing

Abstract

본 발명에 의한 영상복호장치에서는 양방향 움직임 보상의 화상인 B픽쳐를 갖는 영상복호장치에 있어서, 프레임 메모리를 디스플레이용과 움직임 보상용으로 분리시켜서 복호화함으로써 저주파수에서 메모리가 동작할 수 있는 이점이 있다.In the image decoding apparatus according to the present invention, in the image decoding apparatus having the B picture which is the image of the bidirectional motion compensation, the memory can be operated at low frequency by separating and decoding the frame memory for display and motion compensation.

Description

영상복호장치Video decoding device

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

제3도는 본 발명에 의한 영상복호장치의 일실시예를 나타낸 블럭도이다.3 is a block diagram showing an embodiment of an image decoding apparatus according to the present invention.

제4도는 제3도에 있어서 각 프레임 메모리의 동작을 나타낸 도표이다.4 is a diagram showing the operation of each frame memory in FIG.

제5A,5B도는 M1에서 1프레임에 대한 기입, 독출구간을 나타낸 도면이다.5A and 5B show writing and reading sections for one frame in M1.

Claims (3)

부호화된 영상데이타를 일시적으로 저장하기 위한 버퍼와, 상기 버퍼로부터 독출되는 영상데이타를 가변길이 복호화하기 위한 가변길이 복호기와, 상기 가변길이 복호기에서 출력되는 영상데이타를 역양자화하기 위한 역양자화기와, 상기 역양자화기에서 출력되는 영상데이타를 역이산여현변환하기 위한 역이산여현변환기와, 상기 역이산여현변환기에서 출력되는 영상데이타에 대하여 움직임 보상하기 위한 프레임 메모리 및 움직임 보상부를 구비한 영상복호장치에 있어서; 상기 프레임 메모리 및 움직임 보상부는, 디스플레이 및 B픽쳐용으로 사용하기 위한 적어도 1기 이상의 프레임 메모리(M1)와 상기 프레임; 메모리(M1)와 별도로 구비되어 사용하기 위한 적어도 2개 이상의 프레임 메모리(M2, M3)를 포함함을 특징으로 하는 영상복호장치.A buffer for temporarily storing the encoded image data, a variable length decoder for variable length decoding the image data read out from the buffer, an inverse quantizer for dequantizing the image data output from the variable length decoder, An inverse discrete cosine transformer for inverse discrete cosine transforming image data output from an inverse quantizer, and a frame memory and a motion compensator for motion compensation for the image data output from the inverse discrete cosine transformer. ; The frame memory and the motion compensator may include at least one frame memory M1 and the frame for use for display and B picture; And at least two frame memories (M2, M3) for use separately from the memory (M1). 제1항에 있어서, 상기 프레임 메모리(M1)는 두 프레임 용량의 것으로 구성되고, 상기 프레임 메모리(M2와 M3)는 각각 한 프레임 용량의 것으로 구성됨을 특징으로 하는 영상복호장치.The image decoding apparatus according to claim 1, wherein the frame memory (M1) has two frame capacities, and the frame memories (M2 and M3) have one frame capacities, respectively. 제1항에 있어서, 상기 프레임 메모리 및 움직임 보상부는 반화소 움직임 보상시, 시간적인 손실을 보상하기 위하여 상기 역이산여현변환기의 출력 데이타를 일정시간 지연하기 위한 버퍼를 더 포함함을 특징으로 하는 영상복호장치.The image of claim 1, wherein the frame memory and the motion compensator further include a buffer for delaying the output data of the inverse discrete cosine converter for a predetermined time to compensate for temporal loss when the half-pixel motion is compensated. Decryptor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930028000A 1993-12-16 1993-12-16 Picture decoding apparatus KR0130452B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930028000A KR0130452B1 (en) 1993-12-16 1993-12-16 Picture decoding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930028000A KR0130452B1 (en) 1993-12-16 1993-12-16 Picture decoding apparatus

Publications (2)

Publication Number Publication Date
KR950020275A true KR950020275A (en) 1995-07-24
KR0130452B1 KR0130452B1 (en) 1998-04-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930028000A KR0130452B1 (en) 1993-12-16 1993-12-16 Picture decoding apparatus

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KR (1) KR0130452B1 (en)

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KR0130452B1 (en) 1998-04-15

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