KR100991618B1 - 모션벡터 결정방법 - Google Patents
모션벡터 결정방법 Download PDFInfo
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- KR100991618B1 KR100991618B1 KR1020080113684A KR20080113684A KR100991618B1 KR 100991618 B1 KR100991618 B1 KR 100991618B1 KR 1020080113684 A KR1020080113684 A KR 1020080113684A KR 20080113684 A KR20080113684 A KR 20080113684A KR 100991618 B1 KR100991618 B1 KR 100991618B1
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- South Korea
- Prior art keywords
- list
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- motion vector
- direct mode
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- 230000033001 locomotion Effects 0.000 title claims abstract description 260
- 239000013598 vector Substances 0.000 title claims abstract description 245
- 238000000034 method Methods 0.000 title claims description 30
- 230000002123 temporal effect Effects 0.000 claims description 123
- 238000009795 derivation Methods 0.000 claims 1
- 238000004364 calculation method Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
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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
- H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
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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
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
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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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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (1)
- 다이렉트 모드에서, 현재 픽쳐에 포함된 쌍예측 블록이 참조하는 list 1 레퍼런스 픽쳐의 동일 위치에 있는 블록의 움직임 벡터를 기반으로 상기 쌍예측 블록의 움직임 벡터를 유도하는 방법에 있어서,상기 동일 위치에 있는 블록이 list 1 움직임 벡터 만을 갖는 경우에는, 상기 list 1 움직임 벡터를 상기 쌍예측 블록의 움직임 벡터를 유도하기 위한 움직임 벡터로 선택하는 단계;상기 현재 픽쳐와 상기 동일 위치에 있는 블록이 참조하는 list 0 레퍼런스 픽쳐 사이의 시간적 거리와, 상기 list 1 레퍼런스 픽쳐와 상기 list 0 레퍼런스 픽쳐 사이의 시간적 거리를 기반으로 상기 선택된 움직임 벡터를 스케일링하는 단계; 및상기 스케일링된 움직임 벡터에 비트 오퍼레이션을 적용함으로써 상기 쌍예측 블록의 두 개의 움직임 벡터 중 적어도 하나를 유도하는 단계;를 포함하는 쌍예측 블록의 움직임 벡터 유도 방법.
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Application Number | Priority Date | Filing Date | Title |
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KR1020080113684A KR100991618B1 (ko) | 2008-11-14 | 2008-11-14 | 모션벡터 결정방법 |
Applications Claiming Priority (1)
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KR1020080113684A KR100991618B1 (ko) | 2008-11-14 | 2008-11-14 | 모션벡터 결정방법 |
Related Parent Applications (1)
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KR1020080089777A Division KR100890508B1 (ko) | 2008-09-11 | 2008-09-11 | 모션벡터 결정방법 |
Publications (2)
Publication Number | Publication Date |
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KR20080114650A KR20080114650A (ko) | 2008-12-31 |
KR100991618B1 true KR100991618B1 (ko) | 2010-11-04 |
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KR1020080113684A KR100991618B1 (ko) | 2008-11-14 | 2008-11-14 | 모션벡터 결정방법 |
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KR (1) | KR100991618B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6057165B2 (ja) | 2011-01-25 | 2017-01-11 | サン パテント トラスト | 動画像復号化方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010012403A1 (en) | 1996-02-29 | 2001-08-09 | Hiroshi Takizawa | An image coding process and notion detecting process using bidirectional prediction |
JP2002027414A (ja) | 2000-06-13 | 2002-01-25 | Samsung Electronics Co Ltd | 両方向動きベクトルを用いたフォーマット変換装置及びその方法 |
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2008
- 2008-11-14 KR KR1020080113684A patent/KR100991618B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010012403A1 (en) | 1996-02-29 | 2001-08-09 | Hiroshi Takizawa | An image coding process and notion detecting process using bidirectional prediction |
JP2002027414A (ja) | 2000-06-13 | 2002-01-25 | Samsung Electronics Co Ltd | 両方向動きベクトルを用いたフォーマット変換装置及びその方法 |
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