KR950007535A - Video compression encoding device - Google Patents
Video compression encoding device Download PDFInfo
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- KR950007535A KR950007535A KR1019940017533A KR19940017533A KR950007535A KR 950007535 A KR950007535 A KR 950007535A KR 1019940017533 A KR1019940017533 A KR 1019940017533A KR 19940017533 A KR19940017533 A KR 19940017533A KR 950007535 A KR950007535 A KR 950007535A
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- motion vector
- unit
- coding
- dct
- motion
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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
- H04N19/513—Processing of motion vectors
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
- H03K19/1733—Controllable logic circuits
- H03K19/1737—Controllable logic circuits using multiplexers
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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
- H04N19/102—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
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
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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
- H04N19/102—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
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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
- H04N19/102—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]
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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
- H04N19/533—Motion estimation using multistep search, e.g. 2D-log search or one-at-a-time search [OTS]
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- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
본 발명은 동영상의 부호화시 시간축의 군더더기(Temporal Redundancy)를 줄이기 위하여 사용하는 움직임 벡터를 변환 코딩(Coding)하여 화질을 손상시키기 않으면서 영상의 압축률을 높일 수 있게 하는 동영상 압축 부호화 장치에 관한 것이다.The present invention relates to a video compression encoding apparatus for transforming a motion vector used to reduce temporal redundancy in encoding a video to increase the compression ratio of an image without damaging the image quality.
일반적으로 동영상 압축 보호화는 좋은 화질을 제공하면서 높은 압축비를 얻을 수 있도록 하는데 그 목적이 있는 것으로 높은 압축비를 얻기 위해서는 시간상 및 공간상의 군더더기를 제거해야 된다.In general, video compression protection provides a high image quality while providing a good image quality. The purpose of the video compression protection is to remove the lumps in time and space in order to obtain a high compression ratio.
종래의 동영상 압축 부호화장치는 움직임 벡터에 대하여 가변길이 코딩만으로 압축하는 것으로서, 실제의 영상에 있어서의 움직임 벡터는 배경과 물체로 분리되어 배경에 대한 물체의 움직임 또는 물체에 대한 배경의 움직임 형태 즉, 움직임 벡터는 영상의 2차원 평면에 밀접한 관계가 있음을 나타내고, 이는 움직임 벡터의 압축에 많은 여지가 있음을 나타내는 것으로, 종래에는 움직임 벡터에 대하여 가변길이 코딩만을 수행하여 압축률이 낮은 문제점이 있었다.Conventional video compression coding apparatus compresses only motion vector with variable length coding, and the motion vector in the actual image is divided into a background and an object, so that the motion of the object with respect to the background or the motion of the background with respect to the object, The motion vector indicates a close relationship to the two-dimensional plane of the image, which indicates that there is much room for compression of the motion vector. In the related art, only a variable length coding is performed on the motion vector, thereby causing a low compression rate.
따라서, 본 발명은 상기와 같은 종래의 제반 문제점을 해결하기 위하여 창안한 것으로서, 입력영상의 움직임을 추정한 움직임 벡터를 2차원 영상으로 표현하고, 이를 무손실 코딩 또는 손실가미안 코딩의 인트라 코딩방법으로 코딩하여 출력함으로써, 화질을 손상시키기 않으면서 영상을 높은 압축률로 압축시킬 수 있는 동영상 압축 부호화 장치이다.Accordingly, the present invention has been devised to solve the above-mentioned conventional problems, and represents a motion vector estimating the motion of the input image as a two-dimensional image, which is coded using an intra coding method of lossless coding or lossy gamma coding. And a video compression encoding apparatus capable of compressing an image at a high compression rate without compromising image quality.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명의 동영상 압축 부호화 장치의 블럭도.2 is a block diagram of a video compression encoding apparatus of the present invention.
제3도는 본 발명의 무손실 코딩을 실현키위한 움직임 벡터 압축부의 블럭도.3 is a block diagram of a motion vector compression unit for realizing the lossless coding of the present invention.
제4도는 본 발명의 손실감안 코딩을 실현키위한 움직임 벡터 압축부의 블럭도.4 is a block diagram of a motion vector compression unit for realizing lossy coding of the present invention.
제5도는 본 발명의 무손실 코딩과 손실감안 코딩을 선택적으로 사용하기 위한 움직임 벡터 압축부의 블럭도.5 is a block diagram of a motion vector compression unit for selectively using lossless coding and lossy coding of the present invention.
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR930016277 | 1993-08-21 | ||
KR93-16277 | 1993-08-21 |
Publications (2)
Publication Number | Publication Date |
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KR950007535A true KR950007535A (en) | 1995-03-21 |
KR0130167B1 KR0130167B1 (en) | 1998-04-09 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019940017533A KR0130167B1 (en) | 1993-08-21 | 1994-07-20 | Mpeg apparatus |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100580109B1 (en) * | 2003-12-19 | 2006-05-12 | 주식회사 팬택앤큐리텔 | Mobile communication terminal and method for recording moving-image |
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1994
- 1994-07-20 KR KR1019940017533A patent/KR0130167B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100580109B1 (en) * | 2003-12-19 | 2006-05-12 | 주식회사 팬택앤큐리텔 | Mobile communication terminal and method for recording moving-image |
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KR0130167B1 (en) | 1998-04-09 |
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