KR960025200A - An Efficient Half-Pixel Motion Estimator in Image Compression Method - Google Patents
An Efficient Half-Pixel Motion Estimator in Image Compression Method Download PDFInfo
- Publication number
- KR960025200A KR960025200A KR1019940037006A KR19940037006A KR960025200A KR 960025200 A KR960025200 A KR 960025200A KR 1019940037006 A KR1019940037006 A KR 1019940037006A KR 19940037006 A KR19940037006 A KR 19940037006A KR 960025200 A KR960025200 A KR 960025200A
- Authority
- KR
- South Korea
- Prior art keywords
- motion compensation
- pixel
- motion
- integer
- error
- Prior art date
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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
- 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
Abstract
본 발명은 영상압축방법에 있어 효율적인 반화소 움직임 추정장치에 있어서, 메모리번지를 출력하는 번지발생수단(3-1)과; 상기 번지 발생수단(3-1)에서 출력된 메모리번지를 입력받아 각 반화소 위치에서의 움직임보상 오차를 계산하는데 사용되는데 사용된는 정수위치 움직임보상 오차를 출력하는 저장수단(3-2)과; 메모리로부터 출력되는 정수위치에서의 움직임보상 오차들을 입력받아 최소 움직임보상 오차를 갖는 정수 위치를 중심으로 주위 8개 반화소위치에서의 움직임보상 오차를 계산하는 연산기(3-3); 및 상기 연산기(3-3)로부터 출력된 8개 반화소위치 움직임보상 오차와 정수위치에서의 최소 움직임보상 오차들을 서로 비교하여 최소 움직임보상 오차를 갖는 위치를 최종 반화소단위 움직임벡터로 출력하는 비교기및 반화소단위 움직임벡터 선택기(3-4)를 포함하여 이루어지는 것을 특징으로 하는 반화소 움직임 추정장치 및 그 방법에관한 것이다.The present invention provides an efficient half-pixel motion estimation apparatus for an image compression method, comprising: address generation means (3-1) for outputting a memory address; A storage means (3-2) used to calculate a motion compensation error at each half-pixel position by receiving the memory address output from the address generating means (3-1) and outputting an integer position motion compensation error; A calculator (3-3) which receives motion compensation errors at integer locations output from the memory and calculates motion compensation errors at eight half-pixel locations around the integer location having the minimum motion compensation error; And a comparator for comparing the eight half-pixel position motion compensation errors outputted from the calculator 3-3 and the minimum motion compensation errors at integer positions to output the position having the minimum motion compensation error as a final half-pixel unit motion vector. And a half-pixel unit motion vector selector (3-4).
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 따른 움직임 추정부의 흐름도, 제2도는 반화소 단위 움직임 보상 오차에 대한 모델링도, 제3도는 본 발명에 따른 움직임 추정기의 구성도.1 is a flowchart of a motion estimation unit according to the present invention, FIG. 2 is a modeling diagram for half-pixel unit motion compensation error, and FIG. 3 is a block diagram of a motion estimator according to the present invention.
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940037006A KR0134700B1 (en) | 1994-12-23 | 1994-12-23 | Method for estimating moving pixels |
US08/717,733 US5694179A (en) | 1994-12-23 | 1996-09-19 | Apparatus for estimating a half-pel motion in a video compression method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940037006A KR0134700B1 (en) | 1994-12-23 | 1994-12-23 | Method for estimating moving pixels |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960025200A true KR960025200A (en) | 1996-07-20 |
KR0134700B1 KR0134700B1 (en) | 1998-05-15 |
Family
ID=19403707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940037006A KR0134700B1 (en) | 1994-12-23 | 1994-12-23 | Method for estimating moving pixels |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0134700B1 (en) |
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1994
- 1994-12-23 KR KR1019940037006A patent/KR0134700B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0134700B1 (en) | 1998-05-15 |
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